Author Topic: Tehnicka dostignuca....  (Read 121325 times)

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Ugly MF

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Tehnicka dostignuca....
« on: 26-05-2010, 15:55:37 »

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #1 on: 04-10-2010, 11:02:14 »
Ovo verovatno takođe spada u tehnička dostignuća:

Komercijalni džetpek uskoro u prodaji!!!1!1!!!!!!!!

Hel jea!!!

Hobit

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Re: Tehnicka dostignuca....
« Reply #2 on: 06-03-2011, 11:56:20 »
E, kad smo kod tehničkih dostignuća i saobraćaja.... obratite pažnju na kamere postavljene svuda po gradu... Veliki Brat vas gleda...   xcheers

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Sve će na kraju biti dobro, a ako nije dobro, znači da još nije kraj!

zakk

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Re: Tehnicka dostignuca....
« Reply #3 on: 07-03-2011, 13:04:50 »
Mda, a oni su baš tu slučajno.
Why shouldn't things be largely absurd, futile, and transitory? They are so, and we are so, and they and we go very well together.

Melkor

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"Realism is a literary technique no longer adequate for the purpose of representing reality."

mac

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Re: Tehnicka dostignuca....
« Reply #5 on: 12-03-2011, 01:59:58 »
Lele, ako je lik u garaži napravio laser koji probija metal debljine žileta šta li tek vojska može da napravi?

lilit

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Re: Tehnicka dostignuca....
« Reply #6 on: 21-05-2011, 14:04:14 »
That’s how it is with people. Nobody cares how it works as long as it works.

Lord Kufer

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Re: Tehnicka dostignuca....
« Reply #7 on: 21-05-2011, 14:15:53 »
Dobar je za kuvanje kafe ;)

Boban

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Re: Tehnicka dostignuca....
« Reply #8 on: 22-09-2011, 20:59:43 »
...
Put ćemo naći ili ćemo ga napraviti.

Gaff

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Sum, ergo cogito, ergo dubito.

mac

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Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #11 on: 20-10-2011, 09:49:42 »
Znači, možda i doživimo hoverbordove? Živim za taj dan.

mac

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Re: Tehnicka dostignuca....
« Reply #12 on: 30-12-2011, 00:07:44 »
Najveća naučna dostignuća u 2011 godini.

http://io9.com/5871725/sixteen-of-2011s-biggest-scientific-breakthroughs

Moji favoriti su Heartbeat-powered nanogenerators i Online gamers solve a decade-old HIV puzzle in three weeks

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #13 on: 10-01-2012, 12:23:53 »

Josephine

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Re: Tehnicka dostignuca....
« Reply #14 on: 10-01-2012, 12:28:55 »
Quote
If there are any children reading this, there's really only one thing we want to tell you about adulthood: If you make one tiny mistake, people will die.

Meni je ovo (pogrešno) bilo smešno.  xrofl

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #15 on: 30-01-2012, 11:00:40 »
Fold-up car of the future unveiled for Europe 
Quote

By AFP | AFP – Fri, Jan 27, 2012 1:59 PM EST
         
 Click image for more photosClick image for more photos
A tiny revolutionary fold-up car designed in Spain's Basque country as the answer to urban stress and pollution was unveiled Tuesday before hitting European cities in 2013.

The "Hiriko," the Basque word for "urban," is an electric two-seater with no doors whose motor is located in the wheels and which folds up like a child's collapsible buggy, or stroller, for easy parking.

Dreamt up by Boston's MIT-Media lab, the concept was developed by a consortium of seven small Basque firms under the name Hiriko Driving Mobility, with a prototype unveiled by European Commission president Jose Manuel Barroso.

Demonstrating for journalists, Barroso clambered in through the fold-up front windscreen of the 1.5-metre-long car.

"European ideas usually are developed in the United States. This time an American idea is being made in Europe," consortium spokesman Gorka Espiau told AFP.

Its makers are in talks with a number of European cities to assemble the tiny cars that can run 120 kilometers (75 miles) without a recharge and whose speed is electronically set to respect city limits.

They envision it as a city-owned vehicle, up for hire like the fleets of bicycles available in many European cities, or put up for sale privately at around 12,500 euros.

Several cities have shows interest, including Berlin, Barcelona, San Francisco and Hong Kong. Talks are under way with Paris, London, Boston, Dubai and Brussels.

The vehicle's four wheels turn at right angles to facilitate sideways parking in tight spaces.
The backers describe the "Hiriko" project as a "European social innovation initiative offering a systematic solution to major societal challenges: urban transportation, pollution and job creation."

 

Josephine

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Re: Tehnicka dostignuca....
« Reply #16 on: 30-01-2012, 14:45:17 »
Vadi ga to što je na električni pogon. Inače je jako ružan. I mali.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #17 on: 30-01-2012, 14:52:54 »
Koliko sam samo puta čuo tu drugu i treću rečenicu....
 
Ono što ne piše je koliko brzo ide. Kapiram da ne može brže od 80 or samting, što je zgodno za grad, naravno, al ne daj bože da pokušavaš da stigneš u bolnicu sa ženom kojoj je krenuo porođaj.

Melkor

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Re: Tehnicka dostignuca....
« Reply #18 on: 30-01-2012, 14:54:09 »
whose speed is electronically set to respect city limits.

Ili da tim autom vratis zenu i dete iz porodilista :)
"Realism is a literary technique no longer adequate for the purpose of representing reality."

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #19 on: 30-01-2012, 14:55:29 »
Jasno, jasno, sam se pitam kolika mu je realna brzina... Mada bi morao da ga hakuješ da bi je dostigao. Ali opet, ako se žena porađa, i to je legitimno!!!!!!!!!!

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #20 on: 02-02-2012, 10:59:01 »
Dakle... tehnička dostignuća današnjice su samo fusnote sutrašnjice. Kejs in point:
 
Pentagon se žali da je postojeća bomba za dubinsko probijanje utvrda teška petnaest tona suviše mala za njihove potrebe (konkretno Iranska nuklearna postrojenja)
 
Quote

  smitty777 writes    "According to the Pentagon, the 30,000-pound, precision-guided Massive Ordnance Penetrator GBU-57 bomb is just too small. Concerns around Iran's fortification of their nuclear program facilities has the DoD seeking from Congress something not quite as subdued as the GBU-57, the largest non-nuke bomb operated by the USAF. This 'smaller' bomb just recently won a prize for its ability to cut through 60 feet of concrete. The upgrades will cost $82 million on top of the $330 million spent so far to develop the system. There is some interesting high speed camera footage of the GBU-57 in the video below."   

Boeing Delivers Massive Ordnance Penetrator (MOP) 37,000 LB Bombs To The USAF - GBU-57

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #21 on: 02-02-2012, 11:09:52 »
A evo i samonavođenih metaka za lično naoružanje:
 
http://www.gizmag.com/sandia-self-guided-bullet/21286/
 
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     Self-guided bullet could hit laser-marked targets from a mile away       A group of researchers at Sandia National Laboratories have built a prototype of a small-caliber bullet capable of steering itself towards a laser-marked target located approximately 2,000 meters (1.2 miles) away. The dart-like design has passed the initial testing stage, which included computer simulations as well as field-testing prototypes built from commercially available parts.  The four-inch (10 cm) long projectile is to be used with smoothbore arms, meaning ones with non-rifled barrels. Rifling involves cutting helical grooves in the barrel to give the bullet a spin that, thanks to the gyroscopic effect, improves its aerodynamic stability and accuracy. In a self-guided projectile, however, such spinning movement would prevent the bullet from reliably turning towards the target when in flight. For this reason, the group of researchers lead by Red Jones and Brian Kast decided to use a dart-like design that includes tiny fins to allow the projectile to fly straight, without a spin.
While positioning the center of gravity towards the front of the projectile aids the stability, the task of directing the bullet to its target is handled mainly by the little fins. The on-board guidance and control electronics use the information passed on by an optical sensor located in the nose to calculate the flight path. An algorithm in an eight-bit central processing unit is used to control electromagnetic actuators which, in turn, move the fins.
Larger guided projectiles, such as missiles, rely on a device called an inertial measurement unit (IMU) that uses a set of accelerometers and gyroscopes to gather information on velocity, spatial orientation and gravitational forces. Fitting a small-caliber bullet with an IMU would make it extremely expensive. That, however, turned out not to be necessary, as the bullet's size appears to act to its advantage, when compared with larger projectiles.

 
Any projectile's flight dynamics depends on its mass and size. Both these factors influence the rate at which the projectile pitches and yaws. The rate is slower in larger projectiles, and since fewer path corrections can be done in flight, they need to be very precise. With the smaller projectiles yawing and pitching at a faster rate, as many as 30 corrections per second can be made, and less precision is allowed.
Computer simulation results suggest that, under real world conditions, a traditional bullet is likely to miss a target located 1,000 meters (0.62 miles) away by as much as 9 meters (9.8 yards), while a self-guided bullet would get within 20 cm (8 in) of that target. Oddly enough, the accuracy improves the further away the target is. "Because the bullet's motions settle the longer it is in flight, accuracy improves at longer ranges," Red Jones explains. Of course professional snipers can handle such distances pretty well even now, but the bullet could make their jobs much easier.
Field tests showed that electromagnetic actuation allows the projectile to reach the speed of 2,400 feet per second (730 meters per second) using off-the-shelf gun powder. This falls short of military standards, but the research team is confident that customized gunpowder is all that is needed to give the bullet that extra kick.
The researchers needed to devise a way of checking whether the on-board battery and the electronic components can actually survive the flight, and what they came up with is quite ingenious. They attached a tiny light-emitting diode to the bullet and shot it (took pictures of it, that is) in flight during a night field test. The main image at the top of the page illustrates that the components are robust enough to make it.
Although so far the test results are promising, there are still some engineering issues left to tackle. Sandia is now on the lookout for a private corporate partner that would help make their guided bullet available to the military, law enforcement agencies and some hardcore recreational shooters.
The video below shows the bullet in flight.
 

Sandia's self-guided bullet

Melkor

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"Realism is a literary technique no longer adequate for the purpose of representing reality."


Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #24 on: 13-06-2012, 09:42:44 »
Ovo zvuči kao zaista pametan poslovni potez:
 
 Clambook Turns the Laptop Into a Smartphone-Powered Peripheral, Cats Herd Sheep  
Quote

[Credit: Clamcase]
This year’s latest generation of smartphones will be equipped with new, more powerful mobile processors that rival the power of most laptops. So it almost seems fitting that Clamcase, the company that makes iPad keyboard docks, is making the laptop-like peripheral that’s completely powered by a smartphone.
The Clambook is essentially a Macbook Air styled thin-as-hell laptop--minus all the guts. It’s equipped with a 16:9 display, 3D Cinema Sound system, track pad, and a full keyboard with Android specific keys.
The device won’t actually do anything until you’ve connected it to your phone through a MHL cable that carries video, audio, and power. Once you’ve got your phone plugged in, you’ll be able to use it as a mobile workstation or media hub for all your movies, apps, and games.
[Credit: Clamcase]
The idea of using a smartphone to power a portable laptop is hardly new--just ask the Motorola Atrix 2 and its Lapdock partner. The difference is that Clambook promises to work with a multitude of Android devices and iPhones.
Ice Cream Sandwich stuffed Android phones in particular will get a extra few extra multi-touch track pad controls, including scrolling, pinching, zooming, and swiping with two fingers. The Clambook is also compatible with Motorola’s Webtop software, so you’ll be able to take advantage of that full-featured Firefox browser and productivity suite.
While everything might sound great, the Clambook currently only exists as a handful of images attached to a spec sheet. It will be interesting to see if the actual device works as seamlessly as it promises to, especially when it comes to handling iOS devices.
Clamcase says that the Clambook will be coming this holiday season, but has yet to announce a price for the device.
Will there be a day when the desktop computer becomes a peripheral? Leave a Comment below with your thoughts.
[Clambook via Cult of Android and The Verge]
 

tomat

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Re: Tehnicka dostignuca....
« Reply #25 on: 23-06-2012, 18:06:51 »
zar nije ovo Motorola uradila pre nekog vremena ATRIX-om?
Arguing on the internet is like running in the Special Olympics: even if you win, you're still retarded.

lilit

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That’s how it is with people. Nobody cares how it works as long as it works.

Gaff

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Re: Tehnicka dostignuca....
« Reply #27 on: 26-07-2012, 16:49:57 »
Sum, ergo cogito, ergo dubito.

Gaff

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Re: Tehnicka dostignuca....
« Reply #28 on: 28-07-2012, 12:06:38 »
DARPA Moving Ahead with Building Zombie Frankensatellites
Quote
It's like Alien meets Bride of Frankenstein, mixed with Night of the Living Dead: The Defense Advanced Research Projects Agency (DARPA) wants to harvest components from dead, non-working "zombie" satellites to build new ones in space, all done remotely via a grasping, mechanical arm.

http://io9.com/5929565/darpa-moving-ahead-with-building-zombie-frankensatellites
Sum, ergo cogito, ergo dubito.

Gaff

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Re: Tehnicka dostignuca....
« Reply #29 on: 03-08-2012, 14:19:42 »
Predviđanja, predviđanja... će vidimo!



http://envisioningtech.com/envisioningtech.pdf
Sum, ergo cogito, ergo dubito.

mac

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Re: Tehnicka dostignuca....
« Reply #30 on: 03-08-2012, 16:15:43 »
Uh, treba napraviti neku igru od ovog tech stabla.

Gaff

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Re: Tehnicka dostignuca....
« Reply #31 on: 09-08-2012, 13:41:38 »
Sum, ergo cogito, ergo dubito.


Gaff

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Re: Tehnicka dostignuca....
« Reply #33 on: 11-09-2012, 11:20:22 »
New App Lets You Aim a World-Class Telescope From Your iPad

(via Wired)


http://www.wired.com/wiredscience/2012/09/slooh-mysky-app/
Sum, ergo cogito, ergo dubito.

Plut

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Re: Tehnicka dostignuca....
« Reply #34 on: 01-10-2012, 11:08:46 »

Neka ovo ovde...

Cipele sa ugrađenim gps-om.


Quote
Dizajner Dominic Vilcox, stvorio je potpuno funkcionalni prototip, par cipela koje će vas odvesti kući,  bez obzira na to gde se nalazite u svetu...
Inspiraciju je našao u bajci "Čarobnjak iz Oza". Crvene magične cipele male Dorothy inspirisale su ga za ovaj budući svetski hit.
Crvenim svetlom počinje vaš put dok se zeleno pali kada stignete na određenu destinaciju. Da idete pravim putem pokazuju Led diode u krugu.Mali softver stvoren je da planirate željenu destinaciju na mapi. GPS pokreću baterije slične baterijama  u mobilnom telefonu. Leva cipela pomoću magneta komunicira sa desnom. Uz ovakav par cipela, čija je unutrašnjost napravljena od crvene teleće kože, uvek ćete znati pravi put do vaše željene destinacije.
CIPELE SA UGRAĐENIM GPS UREĐAJEM


Još fotki na http://www.luxlife.rs/fancy/cipele-sa-ugraDjenim-gps-ureDjajem

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #35 on: 09-10-2012, 10:48:59 »
TESLA!!!!!
 
Mislim, baš lepo i to od strane čoveka koji radi naš omiljeni webcomic: The Oatmeal!!!!!!!!
 
 With The Oatmeal's help, nonprofit buys property to build a Tesla Museum 
Quote

On Friday, a group known as the Tesla Science Center at Wardenclyffe, formerly known as Friends of Science East, purchased 16 acres on eastern Long Island to create a Tesla museum and science center. Matt Inman, creator of the Web cartoon The Oatmeal, encouraged his readers to contribute to the non-profit’s purchase, calling its goal "a simple feat… only expensive." Inman set out to raise $850,000, but ended up raising close to $1.4 million for the establishment of what will be America’s first museum dedicated to scientist Nikola Tesla.
The New York Times reports that Inman’s fundraiser saw donations from residents of over 100 different countries. Inman donated the proceeds of the fundraiser to the nonprofit, which purchased the Long Island property from the Agfa Corporation. The corporation used the land from 1969 to 1992, but decided to put it up for sale in 2009.
Ars noted at the beginning of Inman’s fundraiser in August that Wardenclyffe, as Tesla called his estate, was originally intended to be “a vector for trans-Atlantic wireless communications, broadcasting, and wireless power. The site consisted of an (incomplete) 18-story-high transmission tower that topped off a laboratory surrounded by 16 acres of land in Shoreham, Long Island in 1903. By 1917, Tesla had sold the site for $20,000 to pay bills at the Waldorf. That same year, the transmission tower was blown up by the buyers and sold for scrap.”
Now that papers have been signed for the purchase of Wardenclyffe, the ruins of Tesla’s brilliant scientific career will be dusted off and presented to people who have admired the scientist’s work for decades.
   

Trebalo bi neko da notira Žarka Obradovića, da Srbijica malko potpomogne ovu inicijativu. Sad ću da vidim ima li na sajtu njegovog ministarstva neki zgodan kontakt ditejl.

scallop

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Re: Tehnicka dostignuca....
« Reply #36 on: 09-10-2012, 11:07:29 »



Nisam verovao da će uspeti da je kupe. Sad će da nastave sakupljanje para i pripemu projekta pune rekonstrukcije. Sledeći put u Njujorku idemo u obilazak uz malu donaciju. Mislim da to nije počelo kao "državni" posao, pa nisam siguran ni da će se nastaviti.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #37 on: 09-10-2012, 11:09:28 »
Definitivno nije počelo kao državni posao. Ja sam poslao mali dopis ministarstvu ukazujući na oportjuniti, pa da vidimo. Pomoglo bi ako bi još po neko kontaktirao ministarstvo - možda ih to trgne. Tu se sa malo para može puno učiniti a bilo bi sjajno i za njihov publicitet.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #38 on: 16-11-2012, 12:11:22 »
Naravno, umjetne vagine imamo već godinama, ali umjetna materica: USKORO!!!
 

 Artificial wombs: is a sexless reproduction society in our future? 
Quote

  Cutting-edge research around the world will soon launch a new era in human procreation – a world in which embryos can be ‘brought to term’ in artificial wombs, replacing traditional pregnancies.
In "Like a Virgin: How Science is Redefining the Rules of Sex," author and genetic scientists, Aarathi Prasad writes, "This might be the biological and social equalizer, a truly new way of thinking about sex."
Cornell University's Dr. Hung-Ching Liu has engineered endometrial tissues by prompting cells to grow in an artificial uterus. When Liu introduced a mouse embryo into the lab-created uterine lining, "It successfully implanted and grew healthy," she said in this New Atlantis Magazine article. Scientists predict the research could produce an animal womb by 2020, and a human model by early 2030s.
In Japan, Juntendo University researcher Yosinori Kuwabara and his team kept goat fetuses growing for ten days. While this womb was only a prototype, Kuwabara predicts that a fully functioning artificial womb capable of gestating a human fetus will evolve in the near future.
However, ethicists voice concerns that this technology could endanger the very meaning of life. Mother-child relationships, the nature of female bodies, and being 'born', not 'made' all play a role in defining how most people around the world view this magical state of existence called life. Artificial wombs will enable both men and women to reproduce entirely alone, removing intercourse from the reproductive equation.
But proponents believe people will reason, "Why risk gestating the baby in a biological womb, when this new science can produce a child with our exact genetic makeup, perfect personality, and zero flaws."
"The womb is a dark and dangerous place, a hazardous environment," says University of Virginia Professor Joseph Fletcher. Fetuses are 100% dependent on their mom's health and sensible judgment. If the mother falls prey to accidents, disease, or inadequate nutrition, the embryo can become traumatized.
Although naysayers believe that this bold science makes us less human, most experts predict that artificial wombs will one day be accepted by mainstream society as more people recognize its many benefits. Babies would no longer be exposed to alcohol or illegal drugs by careless mothers, and the correct body temperature would always be maintained, with 100% of necessary nutrients provided.
Concerns over losing emotional bond between mother and newborn are unwarranted, say scientists. Artificial intelligence advances expected over the next two decades will enable doctors to reproduce exact parent emotions and personalities via vocal recordings, movement, and other sensations. The developing infant would be maintained in a safe secure environment, connected electronically to the mother 24/7.
In the near term though, experts predict most women will probably gestate their children the old-fashioned way; but career-minded females might welcome a concept that allows them to bear children and raise a family without becoming pregnant, a physical condition that often weakens their job status.
Ultimately, this technology would enable anyone – single, married, male, female, young, old, heterosexual or gay – to combine DNA from his or her own body with another person; and the gene pool marches on; a clean birth without pain or morning sickness.
As this science matures, people could freeze eggs and sperm in their teen years when they are most physically fit; then create children later when ready for a family. Artificial wombs may sound radical, but people already donate eggs and sperm to create life in a lab and bring it to term in a surrogate mother.
In an unusual twist, this technology offers justification to pro-lifers in the abortion debates. Choosing an abortion to protect a mother's health would not be necessary, as artificial wombs could bring all aborted embryos to term. Unwanted pregnancies would no longer mean a death sentence for the unborn.
As we move into the future, this procedure could become the preferred method of birthing; but today, many disagree. Some see artificial wombs as a triumph of modern science; others believe it's the ultimate folly. We ask again; is a sexless reproduction society in our future? Time will tell. Comments welcome.
References
http://www.popsci.com/scitech/article/2009-06/shark-factory
http://www.gazetamm.info/category/uncategorized/
http://behealthy.baystatebanner.com/issues/2009/0806/stories/closerlook080609005.html

 

 

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #39 on: 16-11-2012, 12:23:22 »
Robokap!!!!!!!!!!!!!!!1
 
http://www.ksl.com/index.php?sid=22965087&nid=148&title=glasses-equipped-with-camera-create-transparency-for-slcpd&s_cid=featured-1
 
Quote

 
SALT LAKE CITY — Mounted on the side of a pair of sunglasses is what Salt Lake City Police Chief Chris Burbank says is the future of police work. The body cameras work like dash cameras already in police cars — they they'll provide an eye-level view of an officers one on one interaction with the public. Burbank says the body cameras are the "wave of the future" when it comes to police work and transparency. "What better way to document the entire event then an officer wear a camera that sees what the officer sees?" Burbank said. If Chief Burbank gets his way, these tiny, weightless cameras will soon be on every police officer in the state. "If Salt Lake City goes this direction, if any agency goes this direction, the expectation is going to be in my mind, that everyone move in this direction," Burbank said.
 
 
Burbank says body cameras will document officers' actions as they perform patrols, investigate crime scenes and serve search warrants. With the camera mounted at eye level, the recording will provide an accurate real-time record of what happened. He says not every officer likes the idea, but these days officers are already being recorded by cell phones and laptops, and it's better to have their own proof of what happens on the street. "This is going to demonstrate the things we're doing good," Burbank said. "Sometimes it's going to catch us doing things improperly, but for the most part it is going to show we do an outstanding job." The cameras run about $1,000 each, plus the cost of storing the footage, so it's going to take time to get them to all officers. Some motorcycle officers with the department are already wearing them.
 

tomat

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Re: Tehnicka dostignuca....
« Reply #40 on: 24-02-2013, 23:34:44 »
German student builds electromagnetic harvester to recharge a battery

Quote
Dennis Siegel, a student at the University of the Arts in Bremen, Germany has built what he calls an electromagnetic harvester—it converts electromagnetic fields in the immediate environment into electricity to recharge a common AA battery. He's won a 2nd place award in the HfK Bremen Hochschulpreis 2013 competition for Digitale Medien, for his efforts.

http://phys.org/news/2013-02-german-student-electromagnetic-harvester-recharge.html
Arguing on the internet is like running in the Special Olympics: even if you win, you're still retarded.

Gaff

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Re: Tehnicka dostignuca....
« Reply #41 on: 19-03-2013, 11:18:51 »
Sum, ergo cogito, ergo dubito.

Gaff

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Re: Tehnicka dostignuca....
« Reply #42 on: 21-03-2013, 11:29:55 »
Sum, ergo cogito, ergo dubito.

Gaff

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Re: Tehnicka dostignuca....
« Reply #43 on: 22-03-2013, 13:41:51 »
Sum, ergo cogito, ergo dubito.

mac

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Re: Tehnicka dostignuca....
« Reply #44 on: 22-03-2013, 14:24:50 »
E da, ova prva slika mi je bila wallpaper jedno vreme.

Gaff

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Sum, ergo cogito, ergo dubito.

Gaff

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Sum, ergo cogito, ergo dubito.

Gaff

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Re: Tehnicka dostignuca....
« Reply #47 on: 11-04-2013, 20:32:54 »
Sum, ergo cogito, ergo dubito.

Gaff

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Sum, ergo cogito, ergo dubito.

Gaff

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Sum, ergo cogito, ergo dubito.

Gaff

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Re: Tehnicka dostignuca....
« Reply #50 on: 18-04-2013, 11:48:18 »
Sum, ergo cogito, ergo dubito.

Gaff

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Re: Tehnicka dostignuca....
« Reply #51 on: 18-04-2013, 18:55:45 »



Festo - BionicOpter

iliti

BionicOpter

via Singularity Hub

Sum, ergo cogito, ergo dubito.

Gaff

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Re: Tehnicka dostignuca....
« Reply #52 on: 29-04-2013, 19:35:07 »
Sum, ergo cogito, ergo dubito.

Gaff

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Sum, ergo cogito, ergo dubito.

дејан

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Re: Tehnicka dostignuca....
« Reply #54 on: 07-05-2013, 13:54:41 »
Government Lab Admits to Using Quantum Internet for Two Years


Quote
This might be the biggest tech humblebrag ever. A team of scientists at Los Alamos National Labs has quietly shrugged its shoulders and admitted to the fact that, yeah, it's been using quantum internet for, like, the last two years. Whatever.

...barcode never lies
FLA

Alexdelarge

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Re: Tehnicka dostignuca....
« Reply #55 on: 09-05-2013, 14:11:48 »


Ovogodišnji Sajam tehnike i tehničkih dostignuća održaće se pod motom “Korak u budućnost“ od 13. do 17. maja na Beogradskom sajmu, u halama 1, 1a, 2, 3, 3a i 4.

Najstarija velika priredba Beogradskog sajma, organizovana još 1937. godine, koja je dve decenije kasnije postala član Međunarodne unije sajmova UFI, Sajam tehnike je, promovišući nove tehnologije, bila i ostala do danas najprestižnija manifestacija regiona i pokretač industrijskog razvoja zemlje.

Za industrijski napredak svake zemlje važni su savremeni tehnički i tehnološki proizvodi. Stoga Sajam tehnike ove godine poseban akcenat u izlagačkoj koncepciji usmerava ka domaćim izlagačima koji nude inovacije, inovativne proizvode i inovativne projekte.

Savremene tehnologije iz oblasti automatizacije, roboti, bežične komunikacije, elektroenergetika, elektronika, rasveta, procesna tehnika, logistika, materijali, kao i oblasti: reindustrijalizacija, energetska efikasnost, alternativni i obnovljivi izvori enerije, primena IT u industriji obeležiće ovogodišnji 57. Međunarodni sajam tehnike i tehničkih dostignuća.

Integra, kompjuterski integrisana fabrika 21. veka, koja objedinjuje kompjutersku integraciju i automatizaciju svih procesa, predstavlja se i ove godine u hali 1 Beogradskog sajma. Komponente i moduli za fleksibilnu automatizaciju, elektronski merni instrumenti i uređaji, uređaji i softver za razvoj i testiranje programa, upravljanje i nadzor, numerički upravljane mašine i alatke, obradni i merni centri, industrijski roboti, alati i sistemi alata, oprema i softver za projektovanje primenom računara – CAD/CAM, (računarski podržano projektovanje i računarski podržana proizvodnja) su među najznačajnijim oblastima izlagačkog koncepta ove grupe.

Elektroenergetika, energetska, industrijska elektronika, instalacije i rasveta za industriju, poslovne prostore i kuće predstavljaju veoma značajnu izlagačku oblast ove manifestacije. Zbog sve većeg značaja korišćenja obnovljivih izvora energije i unapređenja energetske efikasnosti, na Sajmu tehnike biće organizovan forum sa temom: “Obnovljivi izvori i efikasno korišćenje energije“.

Procesna tehnika, logistika i transport, zavarivanje, materijali, oprema za profesionalne i naučne svrhe takođe su deo bogatog izlagačkog sadržaja Sajma tehnike.

Preko 600 izlagača iz 22 zemlje sveta predstavlja se na ovogodišnjem Sajmu tehnike. Ove godine predstaviće se i izlagači iz Belgije, BIH, Bugarske, Italije, Koreje, Mađarske, Makedonije, Poljske, Rusije, SAD, Slovačke Republike, Švajcarske, Švedske, Tajvana (NR Kina), Turske, Velike Britanije i Srbije.

Na ovogodišnjem Sajmu tehnike biće bredstavljeno preko 200 noviteta.

Radno vreme Sajma tehnike je od 10 do 18 sati. Zadnjeg dana trajanja Sajma, u petak, 17. maja, radno vreme je do 17 sati. Cena pojedinačne ulaznice je 400 dinara, za grupne posete 250, dok je za grupne posete učenika stručnih škola i studente ulaz besplatan. Cena parkinga je 100 dinara na sat.

Vidimo se na Sajmu tehnike i tehničkih dostugnuća!

(MONDO)
moj se postupak čitanja sastoji u visokoobdarenom prelistavanju.

srpski film je remek-delo koje treba da dobije sve prve nagrade.

Gaff

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Re: Tehnicka dostignuca....
« Reply #56 on: 11-05-2013, 09:21:49 »
Government Lab Admits to Using Quantum Internet for Two Years


Quote
This might be the biggest tech humblebrag ever. A team of scientists at Los Alamos National Labs has quietly shrugged its shoulders and admitted to the fact that, yeah, it's been using quantum internet for, like, the last two years. Whatever.



Evo malo jasnije šta se tu zapravo dešava.

via io9
Sum, ergo cogito, ergo dubito.

Gaff

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Re: Tehnicka dostignuca....
« Reply #57 on: 16-05-2013, 17:16:08 »

Robo-Gavran

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Sum, ergo cogito, ergo dubito.

Gaff

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Sum, ergo cogito, ergo dubito.

Gaff

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Sum, ergo cogito, ergo dubito.

Gaff

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Sum, ergo cogito, ergo dubito.

Gaff

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Sum, ergo cogito, ergo dubito.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #62 on: 07-07-2013, 07:58:23 »
Aliluja
 
BBC 3D programming 'on hold' indefinitely
 
Quote

The BBC is to suspend 3D programming for an indefinite period due to a "lack of public appetite" for the technology.
Kim Shillinglaw, the BBC's head of 3D, said it has "not taken off" with audiences who find it "quite hassly".
The BBC began a two-year 3D trial in 2011, broadcasting several shows and events in 3D, including the Olympic Games and Strictly Come Dancing.
A Doctor Who anniversary special in November will be among the final shows televised in 3D as part of the trial.
Half of the estimated 1.5 million households in the UK with a 3D-enabled television watched last summer's Olympics opening ceremony in 3D.
The BBC said 3D viewing figures for the Queen's Christmas Message and the children's drama Mr Stink were "even more disappointing", with just 5% of potential viewers tuning in over the Christmas period.
'Wait-and-see'
In an interview with the Radio Times, Shillinglaw said: "I have never seen a very big appetite for 3D television in the UK.
"I think when people watch TV they concentrate in a different way. When people go to the cinema they go and are used to doing one thing - I think that's one of the reasons that take up of 3D TV has been disappointing."
Shillinglaw will return to her main job at the BBC, as head of science and natural history, when the project ends at the close of the year.
"After that we will see what happens when the recession ends and there may be more take up of sets, but I think the BBC will be having a wait-and-see. It's the right time for a good old pause," she said.
"I am not sure our job is to call the whole 3D race," she said.
Last year's Wimbledon finals were the first programmes to be shown in 3D by the BBC. This year, the broadcaster will show both the men's and ladies Wimbledon semi-finals and finals in 3D.
The free-to-air 3D Wimbledon coverage is only available to viewers with access to a 3D TV set and to the BBC's HD Red Button channel on certain platforms, but not Sky.
Last month, US sports network ESPN announced it was to close its 3D channel in the US due to a lack of uptake.
Recent figures from the US suggest no more than 120,000 people are watching 3D channels at any one time.
 

Father Jape

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Re: Tehnicka dostignuca....
« Reply #63 on: 07-07-2013, 13:03:39 »
Blijedi čovjek na tragu pervertita.
To je ta nezadrživa napaljenost mladosti.
Dušman u odsustvu Dušmana.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #64 on: 23-07-2013, 09:43:33 »
Dakle, kako pružiti taktilni fidbek osobi koja koristi motion controlled tehnologiju poput Kinecta? Dizni ima odgovor:

AIREAL: Interactive Tactile Experiences in Free Air


Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #66 on: 08-10-2013, 14:03:12 »
Samsung je uspeo da u trci da se izbaci prvi smartwatch na tržište pobedi. Ali, sudeći po urnebesnoj recenziji na Arstehnici, pirova je to pobeda:

Death by incompatibility: A Samsung Galaxy Gear review

Quote
Samsung built a smartwatch but forgot to make it do stuff.

When a new article is posted on the Internet, the first addition to the comments section is often an inconsequential, one-word statement: "First!"
The frequent "First!" cry of the Internet troll declares some strange pride in being the first to comment on an article. The commenter put little to no effort into the post; it added nothing to the conversation, and it was completely devoid of substance. The troll did secure the spot at the top of the thread, though, and every additional commenter will be forced to scroll past the pointless contribution.
The Samsung Galaxy Gear says "First!" in hardware form. Samsung has beaten Google and Apple as the first major manufacturer to market, but much like the Internet commenter, it has sacrificed substance for the sake of timing. The Galaxy Gear is a product (with some impressive internals, no less) that has such limited use and such crippling compatibility requirements that it is currently the equivalent of hardware spam. While the Gear won't even come close to serving the needs of the vast majority of people, we're going to be talking about smartwatches a lot in the coming months, so if nothing else, the Gear provides a great starting point.

za nastavak kliknite gore na link...

Barbarin

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Jeremy Clarkson:
"After an overnight flight back to London, I find myself wondering once again if babies should travel with the baggage"

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #68 on: 27-12-2013, 10:48:27 »
Ja sam prilično ozloglašen po svojoj negativnoj predrasudi prema gesturalnim interfejsima i trodimenzionalnim displejima, ali od ovoga se čak i meni malo diže:

In thin air: Could touch display projected on mist replace physical screens?

Quote
(CNN) -- If buttons are a thing of the past and touch screens are the present, what are the screens of the future?
It's not a riddle, but it is a trick question: if the projections of companies like Displair are true then the screens of the future won't be screens at all but interactive images floating in mid-air.
According to Russian designer Max Kamanin, creator of Displair, high-tech displays made from mist and air are "the next step in visual technology".
Tired with "electronic junk" such as TV sets and monitors, Kamanin wanted to invent something that would allow people to display and interact with information without cluttering the physical environment.


His solution? Projecting 3D images onto sheets of mist, giving the illusion of a hologram: "An airstream is created from tiny water drops, similar to the ones in the clouds. The water drops are so tiny they don't have any moisture in them; you can test it on paper or your glasses -- your piece of paper will remain dry and your glasses won't steam up. We can then see images that are projected onto these tiny water drops," he explains.
With the technology consisting of air, water and light Displair is one of the simpler concepts in the burgeoning holographic and 3D projection industry.
"I realised that everything already exists in nature and everything that people create comes from nature: we just need to watch it carefully and you will soon get your answers."
With Displair, users need not wear special glasses as with many other new screen systems because the image is being displayed onto an invisible screen; and that screen responds "intuitively" to hand movements -- 1500 of them -- many of which are similar to those used on our mobile devices, such as pinch-and-zoom.
Today the technology is being used in advertising by big companies such as Google, Coca-Cola and Pepsi, but Kamanin can see practical applications elsewhere, such as in medicine.
"A heart surgeon could see in the air a patient's heart and could blow it up and search for information immediately without having to wash his hands."
The screen-free display comes at a time when concerns are emerging over the hygiene of digital multi-touch displays: "By creating Displair we have developed a product which can be used as a public terminal for extracting necessary information such as timetables and restaurant menus," says Kamanin. "It means that in the future when bigger displays are created numerous people can use Displair at the same time, play games and search for information."
Projecting forward, Kamanin says that in the future he and his team hope to explore scent, to offer users a multi-sensory experience. For now though, he says the basic technology needs further refinement to improve the picture quality and interaction speed.

Lord Kufer

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Re: Tehnicka dostignuca....
« Reply #69 on: 27-12-2013, 15:46:49 »
I sad ćemo, ko onaj ludi čamuga što je mahao na Mandelinoj sahrani, da idemo i mlataramo rukama i nogama i klimamo glavom i pri tom se još pravimo in i pametni  xphone xdirec xseaeek xshot2 xzzw xbaby2

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #70 on: 27-12-2013, 15:51:11 »
Pa, to već radimo, sigurno si video kinect interfejse itd. Ali ovaj sa 3D projekcijom na oblaku sitnih kapljica nekako deluje baš dekadentno  :lol:

Lord Kufer

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Re: Tehnicka dostignuca....
« Reply #71 on: 27-12-2013, 16:03:11 »
Ma ovo će da se proda na prvi udar, ali će, kao i sve igračke, da završi na tavanu.
Ljudi imaju tela koja isto to rade ;)

Lord Kufer

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Re: Tehnicka dostignuca....
« Reply #72 on: 27-12-2013, 16:04:10 »
A ona olovka što piše po vazduhu - ima da zagadi vazduh, neće moći da se diše od toga. Kladim se da će biti zabranjeno za upotrebu na javnim mestima.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #73 on: 27-12-2013, 16:13:13 »
Ma, da, već sam i ja gore izneo svoj načelni skepticizam spram ovakve tehnologije. Ali ovo čak i meni kao skeptiku deluje dovoljno startrekovski nrdi da me malo uzbudi.

Lord Kufer

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Re: Tehnicka dostignuca....
« Reply #74 on: 27-12-2013, 16:41:23 »
Daklem, ja bih volo jedan startrekijski trajkoder za rođendan!
Ali, ovde se zaobilazi suština i prodaje se efekat umesto šta taj uređaj stvarno radi. Kad su nove tehnologije u pitanju, uvek se provo proda ono najnevažnije, time se otplaćuje skupa predproizvodnja. Treba sačekati dok cene padnu i videti da li to zaista treba.

Mislim da je osnovni problem, kod džepne kompjuterske produkcije, tastatura na kojoj može normalno da se radi, da se rasklopi i sklopi na džepnu veličinu, jer tač skrinovi jednostavno nisu dobri za tipkanje. Mi se oslanjamo na čulo dodira u mnogo čemu i ne može to da se zameni vizuelnim efektima.

Takođe, mislim da nije dobro rešenje da se mozak opterećuje dodatnim funkcijama kontrole raznolikih gedžeta bajpasovanjem telesnih (mišićnih i skeletnih) organa. Taj san o bestelesnom, misaonom kontrolisanju sveta je ipak samo san koji propagira bolesnu metamorfozu i degeneraciju.



Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #75 on: 27-12-2013, 16:52:36 »
Praktično sve što si napisao ja mogu da potpišem. Već sam na više meta na ovom forumu lamentirao nad novim interfejsima koji su inspirisani star trekom i majnoriti riportom i koji prodaju maglu umesto nečeg korisnog.

Ali ovo mi je za trenutak rastopilo ledeno srce jer je interesantan/ jeftin način za projekciju trodimenzionalne slike u prostor ispred korisnika a priče o haptičkom fidbeku deluju kao magija  :lol:

mac

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Re: Tehnicka dostignuca....
« Reply #76 on: 27-12-2013, 17:09:08 »
Mislim da je sa postojećim smartfonovima već sada moguće završiti neki rudimentarni lekarski pregled (rad srca, smetnje u disanju) ali nedostaje softver koji bi to omogućio. Uz malo hardverskog majstorisanja mogao bi se napraviti prilično dobar asistent za lekarske preglede. Već sada bi mogao da se napravi nekakav softver koji bi pratio promene na koži, i upozoravao na moguće karcinome kože. Sve što pacijent treba da uradi je da se jednom u pola godine uslika kamerom od glave do pete.


Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #78 on: 27-12-2013, 17:15:12 »
Mislim da je sa postojećim smartfonovima već sada moguće završiti neki rudimentarni lekarski pregled (rad srca, smetnje u disanju) ali nedostaje softver koji bi to omogućio. Uz malo hardverskog majstorisanja mogao bi se napraviti prilično dobar asistent za lekarske preglede. Već sada bi mogao da se napravi nekakav softver koji bi pratio promene na koži, i upozoravao na moguće karcinome kože. Sve što pacijent treba da uradi je da se jednom u pola godine uslika kamerom od glave do pete.
Meni se čini da smo već pričali o tome ovde, a ako nismo, evo jednog člankaiz LA Timesa koji govori o tome da kako je u Africi problem dostupnosti primarne zdravstvene zaštite prilično ozbiljan, apovi za spartfounove koji odrađuju neku laku dijagnostiku mogu da doprinesu boljoj zaštiti zdravlja:

http://articles.latimes.com/2012/oct/06/health/la-he-health-apps-20121006


Naravno, kao čovek uzgajan na marksističkim vrednostima, ja sam užasnut idejom da se smatra prihvatljivim kako se posao koji treba da obavlja država jer ima obavezu prema svojim građanima, odrađuje nekako izokola kroz korporacije. No, opet, ja sam star čovek, nesklon promenama paradigme...

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #79 on: 27-12-2013, 17:21:29 »
Evo zanimljivog teksta

http://business.time.com/2013/12/27/why-3d-printing-is-turning-out-to-be-risky/


Hm, koliko vidim, ovaj tekst govori pre svega o rizicima na strani investitora, odnosno da je rizik u tome da se uleti sa parama prerano (tj. da se upadne u babl i izgubi investicija) ili prekasno, kad su već dobre deonice otišle za razuman novac.

Ono što je jedna od premisa teksta - da je 3D printanje privlačno jer dramatično smanjuje cenu proizvodnje - je svakako filozofija čitave te industrije u ovom trenutku, ali za sada je to samo teza koja skoro ni u jednom slučaju nije realizovana. Kraće rečeno, za sada su skoro svi 3D-printed objekti skupljiji od industrijski proizvedenih ili u apsolutnom smislu ili u skrivenim troškovima. Dakle, definitivno još nismo stigli na vrh talasa.

Lord Kufer

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Re: Tehnicka dostignuca....
« Reply #80 on: 27-12-2013, 23:01:15 »
3D printeri u suštini idu k realizaciji ideje replikatora. Tehnologija ide u tom pravcu bez sumnje, a politika će, opet bez sumnje, ići na to da monopolizuje. Tu su glavni rizici po mom skromnom mišljenju  :-x

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #81 on: 27-12-2013, 23:09:37 »
Pa, bez sumnje. Već vidimo debatu koja se tiče 3D printanja oružja...

Lord Kufer

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Re: Tehnicka dostignuca....
« Reply #82 on: 27-12-2013, 23:20:15 »
Biće zabranjeno unošenje u avijone i bijoskope, crkve i molove, škole i metro  :?:

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #83 on: 27-12-2013, 23:32:17 »
Pa, mislim da je već zabranjeno unošenje na sva mesta gde su zabranjena i industrijski pravljena oružja. Debata je više na temu da li printanje pištolja kod kuće predstavlja ne samo opasnost po javni red i mir nego i po ljude koji printaju...

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #84 on: 29-12-2013, 09:33:19 »
A u 2014. godini se očekuje da vidimo prvu 3D printanu jetru!!111!!! Ne za ugradnju u loveka, to ne bi moglo da dobije dozvolu, ali za testiranje u farmaceutskim testovima, recimo:
 The first 3D printed organ -- a liver -- is expected in 2014
 
 

Lord Kufer

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Re: Tehnicka dostignuca....
« Reply #85 on: 29-12-2013, 22:28:20 »
Uskoro, uskoro, svaki će moći da ima svoju Leeloo ;)

Mark

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Re: Tehnicka dostignuca....
« Reply #86 on: 11-01-2014, 00:07:47 »
Hi, hi, koja prevara! Naseli skoro svi srpski mediji a raskrinkana sa običnom gugl pretragom ...

http://blog.b92.net/text/23572/Milos-Stankovic-IZUMITELJ/

Autor bloga je naseo ali su onda komentatori objasnili stvar.

Dos'o Sveti Petar i kaze meni Djordje di je ovde put za Becej, ja mu kazem mani me se, on kaze: Pricaj ne's otici u raj!
E NES NI TI U BECEJ!

http://kovacica00-24.blogspot.com/

Mark

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Re: Tehnicka dostignuca....
« Reply #87 on: 11-01-2014, 00:46:20 »
Dos'o Sveti Petar i kaze meni Djordje di je ovde put za Becej, ja mu kazem mani me se, on kaze: Pricaj ne's otici u raj!
E NES NI TI U BECEJ!

http://kovacica00-24.blogspot.com/

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #88 on: 16-01-2014, 10:33:24 »
Evo malo promišljanja neoludizma od strane učenih ljudi:


If I Had a Hammer



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MY favorite story in Erik Brynjolfsson and Andrew McAfee’s fascinating new book, “The Second Machine Age,” is when the Dutch chess grandmaster Jan Hein Donner was asked how he’d prepare for a chess match against a computer, like I.B.M.’s Deep Blue. Donner replied: “I would bring a hammer.”
Donner isn’t alone in fantasizing that he’d like to smash some recent advances in software and automation — think self-driving cars, robotic factories and artificially intelligent reservationists — which are not only replacing blue-collar jobs at a faster rate, but now also white-collar skills, even grandmasters!
Something very, very big happened over the last decade. It is being felt in every job, factory and school. My own shorthand is that the world went from “connected to hyperconnected” and, as a result, average is over, because employers now have so much easier, cheaper access to above-average software, automation and cheap genius from abroad. Brynjolfsson and McAfee, both at M.I.T., offer a more detailed explanation: We are at the start of  the Second Machine Age.
The First Machine Age, they argue, was the Industrial Revolution that was born along with the steam engine in the late 1700s. This period was “all about power systems to augment human muscle,” explained McAfee in an interview, “and each successive invention in that age delivered more and more power. But they all required humans to make decisions about them.” Therefore, the inventions of this era actually made human control and labor “more valuable and important.” Labor and machines were complementary.
 In the Second Machine Age, though, argues Brynjolfsson, “we are beginning to automate a lot more cognitive tasks, a lot more of the control systems that determine what to use that power for. In many cases today artificially intelligent machines can make better decisions than humans.” So humans and software-driven machines may increasingly be substitutes, not complements. What’s making this possible, the authors argue, are three huge technological advances that just reached their tipping points, advances they describe as “exponential, digital and combinatorial.”
To illustrate “exponential” they retell the story of the king who was so impressed with the man who invented chess that he offered him any reward. The inventor suggested rice to feed his family. He asked the king to simply place a grain of rice on the first square of a chessboard and then have each subsequent square receive twice as many grains as the previous. The emperor agreed until he realized that 63 instances of doubling yields a fantastically big number, even starting with one grain — like 18 quintillion grains of rice, once you finish the second half of the chess board.  Recent Comments     Anonymous 3 days ago  The combination of extended advances in technology and globalization have resulted in a tremendous shift of wealth and power from labor (i.e...
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  The authors compare this second half of the chessboard to Moore’s Law about the relentless doubling of digital computing power about every two years. Unlike the steam engine, which was physical and doubled in performance every 70 years, computers “get better, faster than anything else, ever,” says Brynjolfsson. Now that we’re in the second half of the digital chessboard, you see cars that drive themselves in traffic, Jeopardy-champion supercomputers, flexible factory robots and pocket smartphones that are the equivalent of a supercomputer of just a generation ago.Now add the spread of the Internet to both people and things — soon everyone on the planet will have a smartphone, and every cash register, airplane engine, student iPad and thermostat will be broadcasting digital data via the Internet. All this data means we can instantly discover and analyze patterns, instantly replicate what is working on a global scale and instantly improve what isn’t working — whether it is eye surgery techniques, teaching fractions or how best to operate a G.E. engine at 30,000 feet. Suddenly, the speed and slope of improvement, they argue, gets very fast and steep.
Combinatorial advances mean you can take Google Maps and combine them with a smartphone app like Waze, through which drivers automatically transmit traffic conditions on their routes by just carrying their phone in their car, and meld both into a GPS system that not only tells you what the best route is to your destination but what the best route now is because it also sees all the traffic everywhere. Instantly, you’re the smartest driver in town.
 Put all these advances together, say the authors, and you can see that our generation will have more power to improve (or destroy) the world than any before, relying on fewer people and more technology. But it also means that we need to rethink deeply our social contracts, because labor is so important to a person’s identity and dignity and to societal stability. They suggest that we consider lowering taxes on human labor to make it cheaper relative to digital labor, that we reinvent education so more people can “race with machines” not against them, that we do much more to foster the entrepreneurship that invents new industries and jobs, and even consider guaranteeing every American a basic income. We’ve got a lot of rethinking to do, they argue, because we’re not only in a recession-induced employment slump. We’re in a technological hurricane reshaping the workplace — and it just keeps doubling.



Charting technology’s new directions: A conversation with MIT’s Erik Brynjolfsson


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A leading expert explores the new relationship between man and machine and the challenges that emerge when innovation is decoupled from growth in jobs and incomes.





 “We’re finally getting at that seminal moment in human history when we can talk to our machines and our machines will understand us in regular, natural language,” says Massachusetts Institute of Technology (MIT) professor Erik Brynjolfsson. In this video, he explores the role of big data in business performance, the rise of robotics, and the decoupling of the historical relationship between gains in productivity, incomes, and jobs. He is the coauthor, with MIT research scientist Andrew McAfee, of Race Against the Machine (Digital Frontier Press, October 2011). This interview was conducted by McKinsey Publishing’s Rik Kirkland. What follows is an edited transcript of Brynjolfsson’s remarks. 
  Interview transcript Technologies to watch  We see a slew of amazing innovations already in the pipeline. We’ve had a chance to look at some of them. A few of them are beginning to have significant effects now, and I think more of them will have even bigger effects in the next five or ten years. Obviously, big data has got to be at or near the top of that list.
 Andy [Andrew McAfee] and I have done a lot of work on looking at how big data is changing companies. It’s very striking to us how the companies that are measuring their operations more carefully, taking these very large volumes of data and creating more analytical types of management practices, are dramatically outperforming their competitors.
 We’ve spent some time looking at different kinds of robotics. For instance, our friend Rodney Brooks has a company called Rethink Robotics. We play with a robot called Baxter, and it works for less than $4 an hour, and can do a lot of basic, routine manual tasks. And the big advances there were improvements in vision; sensory systems, more generally; touch; relatively fine motor control; and it can work more autonomously than other robots.
 Another very striking example is the Google self-driving car. I had a thrilling experience riding down Route 101, and at first, it was kind of scary because you’re just sitting there and there’s no driver. But then, after a while, you kind of feel like, “Hey, this is kind of cool.” And by the end of the ride, I think I was almost bored. It was like, “Hey, this is driving so smoothly and confidently, I almost feel more secure in this car.” In fact, I did feel more secure in that car than I did riding with a typical Boston taxi driver.
 Another big category is in using different kinds of artificial intelligence to answer questions. We had IBM’s Watson supercomputer come and play our team of MIT students, and Watson completely kicked their butt playing Jeopardy! But, of course, they didn’t build it just to win $75,000 at Jeopardy! They have it answering questions at call centers—a whole variety of unexpected questions. They have it doing medical diagnoses, legal recommendations, and financial- services recommendations.
 And I can just see a plethora of opportunities there to answer all sorts of unstructured queries from very large data sets in a way that not just matches but exceeds human capabilities. And there are a lot of jobs that are going to be affected by that, and a lot of wealth that can be potentially created from that.
 Man and machine  I think we’re finally getting at that seminal moment in human history when we can talk to our machines and our machines will understand us in regular, natural language. It’s a little clunky if you use Siri or some of the automated voice-response systems. At first, you’re kind of amazed by a few things you can do, but you quickly run into the boundaries and it can be a little frustrating. But it’s advancing very, very rapidly.
 And to tie it back to one of the technologies I mentioned earlier, the big breakthrough has been linking it to big data. You now have hundreds of millions of people using that, talking to it and correcting it. It creates a closed-loop learning system where these voice systems (not just Siri but Google and the others) are learning much more rapidly than they could in the past. And just by crunching large amounts of data, they’re able to improve language understanding in a way that we couldn’t when we were sort of trying to hand code the semantics and syntax of language in the first era of language recognition.
 So I could go on, but those alone would be enough to revolutionize my life, and I think everyone’s life. But in terms of economic impact, some of the biggest impacts will be getting machines to do things that humans can’t do, or that are very different. The old saw is that we didn’t make machines fly by flapping their wings, and cars don’t walk on their wheels. They use very different methods, and, as a result, can exceed our capabilities in dramatic ways. And then, of course, they’re weaker in other ways.
 That does leave these sort of interesting weak spots that they have, and the nice thing is that it means humans and machines are complementary. Machines aren’t perfect or even very good substitutes for humans in some areas. But by working together, by racing with machines, we can do more than the machines by themselves or humans by themselves could do.
 If you just look at simple games like chess, everyone knows now that the best chess player in the world is not a human. But what they may not know is that it’s not a computer either. It’s actually a team of humans and computers playing together that can beat the best computer playing chess or the best human playing chess.
 And that’s a good kind of microcosm of this idea of racing with machines. There are a number of companies trying to create new business models where they use technology to bring people together and solve problems that couldn’t previously be solved.
 Productivity paradox  Innovation has never been faster. And in fact, if you look at the underlying statistics, productivity growth is doing pretty well. Productivity levels are at an all-time high, and in the 2000s, productivity growth was faster than it was in the 1990s, which was a great decade.
 On the other hand, you have the median worker doing worse. And the median household and the median worker in the United States have lower incomes today than in 1997. What’s more, the employment-to-population ratio has fallen; it’s almost like falling off a cliff. And similar things are visible in the OECD1  statistics for nations around the world. And that is exactly the great paradox of our era.2
 Now, the way that we came about to resolve that was to make a key observation, and that is that there is no economic law that says that technological progress needs to benefit everybody, or even that it needs to benefit a majority of people. It’s entirely possible for technology to advance, to make the pie bigger, and yet for some people to get a smaller share of that pie.
 And in essence, that’s what’s been happening, especially over the past 10 or 15 years. Historically, productivity and employment and median income have all grown together. And I recently wrote an article called “The Great Decoupling”3 where you see how these trends map each other all through the 20th century, and then they start separating in the late 1990s, in particular. So from that data, it does appear that we’re in a new era, in the sense that these technologies are behaving differently.
 In fairness, technology has always been creating jobs, and it has always been destroying jobs. Go back to 1800 when on the order of 90 percent of Americans worked on farms. Now it’s less than 2 percent. Of course, all those people didn’t just become unemployed. As technology automated threshing, those jobs were replaced by new jobs. Henry Ford helped create the auto industry. Steve Jobs, Bill Gates, and many others helped create the computer industry, and numerous other occupations rose up that we never could have thought of before. And so people moved from one area to another.
 You’d like to see that happening again now. But the data show that it just isn’t happening as fast. We’re having the automation and the job destruction; we’re not having the creation at the same pace. There’s no guarantee that we’ll be able to find these new jobs. It may be that machines are better than that.
 That said, I’m not sure that’s a bad thing, because ultimately the purpose of economic progress and technological progress is to be able to create more wealth with less work. I mean, isn’t that what we want? More wealth with less work? So, if we are in a Star-Trek economy, where replicators create all the essentials that we need, that doesn’t have to be a bad thing if we can have an economic system that matches to it and find a way that people can share in that benefit. And people can still continue to find meaning and value in life.
 And we may, in the coming decades, be confronted with that question of how we create an economic system that adapts and changes as rapidly as our technological system has changed.
  About the authors  Erik Brynjolfsson is the Schussel Family Professor of Management at MIT’s Sloan School of Management. This interview was conducted by McKinsey Publishing’s Rik Kirkland.
 

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #89 on: 20-01-2014, 10:47:24 »
Povezivanje svega živog na internet (i srazmerno malo pažnje posvećene bezbednosti) rezultira i time da danas spem može da vam stigne i - od frižidera:


Fridge sends spam emails as attack hits smart gadgets



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A fridge has been discovered sending out spam after a web attack managed to compromise smart gadgets.
The fridge was one of more than 100,000 devices used to take part in the spam campaign.
Uncovered by security firm Proofpoint the attack compromised computers, home routers, media PCs and smart TV sets.
The attack is believed to be one of the first to exploit the lax security on devices that are part of the "internet of things".
 Poor protection The spam attack took place between 23 December 2013 and 6 January this year, said Proofpoint in a statement. In total, it said, about 750,000 messages were sent as part of the junk mail campaign. The emails were routed through the compromised gadgets.
About 25% of the messages seen by Proofpoint researchers did not pass through laptops, desktops or smartphones, it said.
Instead, the malware managed to get itself installed on other smart devices such as kitchen appliances, the home media systems on which people store copied DVDs and web-connected televisions.
Many of these gadgets have computer processors onboard and act as a self-contained web server to handle communication and other sophisticated functions.
Investigation by Proofpoint into the internet addresses involved in the attack revealed the presence of the smart gadgets, said David Knight, general manager of Proofpoint's information security division.
"The results spoke for themselves when the addresses responded with explicit identification, including well-known, often graphically branded interfaces, file structures, and content," he told the BBC.
Mr Knight speculated that the malware that allowed spam to be sent from these devices was able to install itself because many of the gadgets were poorly configured or used default passwords that left them exposed.
He said attacks such as this would become much more routine as homes and furnishings got smarter and were put online.
"Many of these devices are poorly protected at best and consumers have virtually no way to detect or fix infections when they do occur," he added.

дејан

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Re: Tehnicka dostignuca....
« Reply #90 on: 13-02-2014, 11:13:47 »
Giant leap for nuclear fusion as scientists get more energy out than fuel put in


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Researchers in the US have overcome a key barrier to making nuclear fusion reactors a reality. In results published in Nature, scientists have shown that they can now produce more energy than the fuel put into an experiment. The use of fusion as a source of energy remains a long way off, but the latest development is an important step toward that goal.


...barcode never lies
FLA

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #91 on: 04-04-2014, 09:33:49 »
Jedna trećina vlasnika nosivih kompjuterizovanih sprava ih napušta posle šest meseci. Ko se iznenadio?


Wearables: one-third of consumers abandoning devices

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Hundreds of Galaxy Gear smartwatches are listed on eBay barely six months after launch. Why isn't the wearable tech market taking off?


The advert was blunt: a second-hand Samsung Galaxy Gear smartwatch for sale, priced at "£100 ONO". For a device which cost £299 in September, surely that's a bargain?
Yet after a week advertised on the intranet of an non-technical organisation with more than 10,000 staff, it was still unsold. "Nothing hangs around our noticeboard that long," one who saw the ad told me.

Separately, the same organisation had another Galaxy Gear for sale - priced at "any offer". That did sell (how can you argue with "any price"?) but together the adverts for a device that was barely six months old point to a problem some people are beginning to suspect about "wearables" - that if you don't get it just right, they're done.
That observation is strengthened by research from Endeavour Partners in the US, which found that one-third of American consumers who have owned a wearable product stopped using it within six months. What's more, while one in 10 American adults own some form of activity tracker, half of them no longer use it.
So what's the problem with smartwatches and fitness trackers? Are they just too early? Or is it something more fundamental?
The tale of the smartwatches is mixed. One was acquired when the owner bought a Galaxy Note 3 smartphones; the mobile network offered the Gear as a cheap add-on. But the buyer, having got it, decided it was ugly and sought to get rid of it.
The other came from someone who definitely wanted it, and used it - but was disappointed when it was superseded within months by the newer version, released by Samsung at Mobile World Congress. "Is that the old one?" the owner was asked by informed friends.
It's against stories like that that one must weigh figures like Samsung's claims of sales for the Galaxy Gear, and the figures from Kantar ComTech, which suggest that there are 426,000 smartwatches owned in Britain, of which 136,000 are Galaxy Gears. (I own and use a Pebble bought through its Kickstarter page; I've mostly been very pleased with it, with one exception.)
But some of those smartwatches, as the above examples suggest, probably aren't being used. A quick search on eBay for "Galaxy Gear" (excluding the words "protector" and "seal" which are used to sell add-ons) turns up nearly 900 results, of which this one, chosen at random, is typical: "I got it free with my Galaxy Note 3 and do not want this."
The story is the same as that found by CCS Insight, which last autumn found in a survey of more than 1,500 smartphone owners in the US and UK that 65% had heard of smartwatches, and more than 50% knew about fitness trackers; but of those who owned either, 40% had stopped using them because they got bored with the idea, or simply forgot to put it on.
Taken on their own, none of those is conclusive, or even concerning evidence for wearables boosters – except for the last one. But that is the one that really does hold the seeds of a very worrying trend for wearables companies, because the people who have bought fitness trackers and abandoned them should, in theory, be the most eager early adopters.Early abandonmentFor comparison, you wouldn't find people from the early days of the smartphone saying that they'd abandoned their BlackBerry, Treo or Windows Mobile or Symbian phone. They were the early adopters, and they found utility in having email and (sometimes) web pages on the move. The idea of giving them up just wouldn't occur to them.
But fitness trackers, which were meant to spearhead wearables use – because they provided something people would want. The "total addressable market" of gym users in the UK, for example, is substantial: 4.5 million adults have memberships, according to data from TGI; in the US, the figure is about 10 times higher. Those are substantial markets.
Yet the data from Endeavour Partners indicates that fitness trackers are no more sticky than new year's resolutions.
What does that presage for wearables? It may be that they are presently so primitive that it's no surprise that people give them up: they're too big, haven't discovered the killer app that we want out of them, and have battery life that is too limited.
In the early days of MP3 players such as the Diamond Rio, you could tell that they were transformative because the ones using solid-state storage weren't prone to skipping, unlike the CD Walkmans they were trying to disrupt. The trouble was that getting music on to those early players was a pain – you had very limited storage, and comparatively slow connections (USB 1.1, at 12 megabits per second; USB 2 didn't come into widespread use until about 2003).
So lots of those early MP3 players eventually ended up in drawers; but that didn't stop the sector becoming huge. We went from having to carry around CDs and a CD player (or a MiniDisc and player, or cassettes and player) to having the music integrated into the player. And then the player became integrated into other objects, such as our phones. Integrated lifeBut it was that integration - the way that the music became part of the music player, rather than being separate (and bulky) - which really showed off the promise of the early devices.
So far, there aren't clear signs of quite what it is that smartwatches and fitness trackers are replacing, in the way that those music players did. Useful new technology has to replace or simplify some function, ideally; otherwise it has the challenge of persuading us that we need this entirely new thing. Smartphones are simpler ways to collect your email – and also make phone calls and surf the web (and so on).
Fitness trackers... let you track your fitness. But given that 41% of people run with their smartphones, you might get by with a movement tracking app instead. The trouble with devices that claim to track your steps is they're so easily hoaxed by waving your arms around.
The Endeavour Partners study, and those for-sale adverts (both physical and on eBay) point to something still unsolved by this first tranche of wearable devices. They're just not that good at exciting us. The problems to be solved - usefulness, battery life, appearance - clearly haven't been. Nor has the real killer app appeared (although there seems to be increasing evidence that people find the notifications on smartwatches useful).
Perhaps the arrival of Android Wear will make a difference - and that the incorporation of Google Now, voice search, and the "cards" system that seems to be part of Android Wear will all add up to an experience that delights the second-generation wearables buyers. It remains to be seen, though. There's a gap between the obvious extra utility that digital music players - or early smartphones - offered, and the very thin reasoning being used to justify a computer on your wrist or waist.
Overall, something seems to be missing from the usefulness that we'd expected to feel. (And I say that as the owner of a smartwatch; I like the way that the Pebble lets me know when someone's calling even if I'm away from my phone and, until the software update, also showed me texts - but only texts, not emails or tweets or Facebook updates; my choice now is to have all or nothing of those, so I choose the latter).
It could be that wearables are poised for a tsunami of success. But those sales notices on the intranet, and those eBay listings, give reason to pause.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #92 on: 09-04-2014, 09:59:25 »
Nanodot-based smartphone battery that recharges in 30 seconds


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Today at Microsoft’s Think Next symposium in Tel Aviv, Israeli startup StoreDot has demonstrated the prototype of a nanodot-based smartphone battery it claims can fully charge in just under 30 seconds. With the company having plans for mass production, this technology could change the way we interact with portable electronics, and perhaps even help realize the dream of a fast-charging electric car.


As we all know only too well, recharging our portable electronics can take a painfully long time. This is because reversing the chemical reactions that caused the battery to deplete is a process that can hardly be rushed, for considerations of both safety and energy efficiency.
But now, a radically new battery design advanced by StoreDot could bring charge times down to the order of a few seconds. The company produces so-called nanodots, chemically synthesized bio-organic peptide molecules that, thanks to their small size, improve electrode capacitance and electrolyte performance. The end result is batteries that can be fully charged in seconds rather than hours.
'In essence, we have developed a new generation of electrodes with new materials – we call it MFE – Multi Function Electrode," StoreDot CEO Doron Myersdorf told Gizmag. "On one side it acts like a supercapacitor (with very fast charging), and on the other is like a lithium electrode (with slow discharge). The electrolyte is modified with our nanodots in order to make the multifunction electrode more effective."
The company says that unlike other nanodot and quantum-dot technologies that are heavy metal based, making them toxic, its nanodots are made from a vast range of bio-organic raw materials that are environmentally-friendly. These materials are also naturally abundant, and the nanodots employ a basic biological mechanism of self-assembly, making them cheap to manufacture.
Self-discharge characteristics are similar to those of lithium-ion cells and, for its first prototype, the company targeted the approximate capacity of a smartphone battery (around 2,000 mAh).
But Myersdorf told us that the technology could also be adapted to electric cars, by modifying the electrode so it could sustain higher currents (and, of course, configuring a large number of cells in parallel).
StoreDot is in the process of submitting patents for the technology, and mass production of the smartphone batteries is planned for late 2016.
The video below illustrates just how quickly the battery can be recharged.



StoreDot Flash-Battery Demo

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #93 on: 11-04-2014, 09:19:23 »
Da li bi neko tehnički potkovaniji od mene mogao da mi objasni zašto vidimo ovo što vidimo? Naime ovo je video na kome američka ratna mornarica pokazuje prototip novog railguna, dakle "topa" koji ispaljuje balistički projektil brzinom od sedam Maha koristeći elektromagnetno polje za davanje ubrzanja tanetu. As in: nema hemijske propulzije. Zašto onda vidimo vatru i dim? Većina komentatora na JuTjubu i Slešdotu koji ovo objašnjavaju vele da se od toplote i pritiska koje generiše kretanje mase ovolikom brzinom u malom prostoru "zapali kiseonik", što baš ništa ne znači, a neki kažu da se to zapale sitni komadi metala koji se oslobađaju od trenja... Meni to nekako... ne deluje tako???


http://youtu.be/qJQfAcBs5vQ

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #94 on: 11-04-2014, 09:57:05 »
Ali američka ratna mornarica radi i korisnije stvari, na primer ova demonstracija dobijanja goriva iz... morske vode?  :-? :-? :-?

Scale Model WWII Craft Takes Flight With Fuel From the Sea Concept


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Navy researchers at the U.S. Naval Research Laboratory (NRL), Materials Science and Technology Division, demonstrate proof-of-concept of novel NRL technologies developed for the recovery of carbon dioxide (CO2) and hydrogen (H2) from seawater and conversion to a liquid hydrocarbon fuel.

Fueled by a liquid hydrocarbon—a component of NRL's novel gas-to-liquid (GTL) process that uses CO2 and H2 as feedstock—the research team demonstrated sustained flight of a radio-controlled (RC) P-51 replica of the legendary Red Tail Squadron, powered by an off-the-shelf (OTS) and unmodified two-stroke internal combustion engine.
Using an innovative and proprietary NRL electrolytic cation exchange module (E-CEM), both dissolved and bound CO2 are removed from seawater at 92 percent efficiency by re-equilibrating carbonate and bicarbonate to CO2 and simultaneously producing H2. The gases are then converted to liquid hydrocarbons by a metal catalyst in a reactor system.
"In close collaboration with the Office of Naval Research P38 Naval Reserve program, NRL has developed a game changing technology for extracting, simultaneously, CO2 and H2 from seawater," said Dr. Heather Willauer, NRL research chemist. "This is the first time technology of this nature has been demonstrated with the potential for transition, from the laboratory, to full-scale commercial implementation."
CO2 in the air and in seawater is an abundant carbon resource, but the concentration in the ocean (100 milligrams per liter [mg/L]) is about 140 times greater than that in air, and 1/3 the concentration of CO2 from a stack gas (296 mg/L). Two to three percent of the CO2 in seawater is dissolved CO2 gas in the form of carbonic acid, one percent is carbonate, and the remaining 96 to 97 percent is bound in bicarbonate.
NRL has made significant advances in the development of a gas-to-liquids (GTL) synthesis process to convert CO2 and H2 from seawater to a fuel-like fraction of C9-C16 molecules. In the first patented step, an iron-based catalyst has been developed that can achieve CO2 conversion levels up to 60 percent and decrease unwanted methane production in favor of longer-chain unsaturated hydrocarbons (olefins). These value-added hydrocarbons from this process serve as building blocks for the production of industrial chemicals and designer fuels.


In the second step these olefins can be converted to compounds of a higher molecular using controlled polymerization. The resulting liquid contains hydrocarbon molecules in the carbon range, C9-C16, suitable for use a possible renewable replacement for petroleum based jet fuel.
The predicted cost of jet fuel using these technologies is in the range of $3-$6 per gallon, and with sufficient funding and partnerships, this approach could be commercially viable within the next seven to ten years. Pursuing remote land-based options would be the first step towards a future sea-based solution.
The minimum modular carbon capture and fuel synthesis unit is envisioned to be scaled-up by the addition individual E-CEM modules and reactor tubes to meet fuel demands.
NRL operates a lab-scale fixed-bed catalytic reactor system and the outputs of this prototype unit have confirmed the presence of the required C9-C16 molecules in the liquid. This lab-scale system is the first step towards transitioning the NRL technology into commercial modular reactor units that may be scaled-up by increasing the length and number of reactors.
The process efficiencies and the capability to simultaneously produce large quantities of H2, and process the seawater without the need for additional chemicals or pollutants, has made these technologies far superior to previously developed and tested membrane and ion exchange technologies for recovery of CO2 from seawater or air.



Creating Fuel from Seawater

Alexdelarge

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Re: Tehnicka dostignuca....
« Reply #95 on: 12-05-2014, 23:21:08 »
How To Build A Smartphone Microscope Stand for $10

Obtaining a high quality microscope for your home or a classroom doesn’t require a massive investment. For only $10, basic supplies from a hardware store can be turned into microscope stand for a smart phone capable of reaching up to 175x magnification. All that is required for this setup is a piece of plywood, some Plexiglass, the lens from a laser pointer, small LED light, and some nuts and bolts to hold it together.

By using a smartphone with the microscope, images and videos of the specimens can be taken easily. This is a great tool for getting up close and personal with everyday small objects like salt and pepper, but it can also be used to see plant cells easily.

http://www.iflscience.com/technology/how-build-smartphone-microscope-stand-10

Turn Your Smartphone Into a Digital Microscope!
moj se postupak čitanja sastoji u visokoobdarenom prelistavanju.

srpski film je remek-delo koje treba da dobije sve prve nagrade.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #96 on: 16-05-2014, 09:37:31 »
Svi smo znali da je CD tehnologija kurac, a stiže i istorijska potvrda da je njihova degradacija realnost a ne urbani mit:


http://beta.slashdot.org/story/202019



Quote
"Adrienne LaFrance reports at the Atlantic that if you've tried listening to any of the old CDs lately from your carefully assembled collection from the 1980's or 1990's you may have noticed that many of them won't play. 'While most of the studio-manufactured albums I bought still play, there's really no telling how much longer they will. My once-treasured CD collection — so carefully assembled over the course of about a decade beginning in 1994 — isn't just aging; it's dying. And so is yours.'
 
 Fenella France, chief of preservation research and testing at the Library of Congress is trying to figure out how CDs age so that we can better understand how to save them. But it's a tricky business, in large part because manufacturers have changed their processes over the years and even CDs made by the same company in the same year and wrapped in identical packaging might have totally different lifespans. 'We're trying to predict, in terms of collections, which of the types of CDs are the discs most at risk,' says France. 'The problem is, different manufacturers have different formulations so it's quite complex in trying to figure out what exactly is happening because they've changed the formulation along the way and it's proprietary information.' There are all kinds of forces that accelerate CD aging in real time. Eventually, many discs show signs of edge rot, which happens as oxygen seeps through a disc's layers. Some CDs begin a deterioration process called bronzing, which is corrosion that worsens with exposure to various pollutants. The lasers in devices used to burn or even play a CD can also affect its longevity. 'The ubiquity of a once dominant media is again receding. Like most of the technology we leave behind, CDs are are being forgotten slowly,' concludes LaFrance. 'We stop using old formats little by little. They stop working. We stop replacing them. And, before long, they're gone.'" You can donate CDs to be tested for aging characteristics by emailing the Center for the Library's Analytical Science Samples. I haven't had much trouble ripping discs that were pressed in the 80s (and acquired from used CD stores with who knows how many previous owners), but I'm starting to get nervous about not having flac rips of most of my discs.

mac

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Re: Tehnicka dostignuca....
« Reply #97 on: 17-05-2014, 01:54:30 »
http://singularityhub.com/2014/05/16/neurogrid-a-circuit-board-modeled-on-the-human-brain/

Quote
NeuroGrid — A Circuit Board Modeled after the Human Brain bioengineering, nueromorphic computing, neural networks, AI, artificial intelligence, human brain height=300Although the basic computer architecture we rely on was designed to handle math and logic problems, it’s done a bang-up job of tackling everything from word processing and socializing to controlling the movements of artificial limbs. But as we demand increasingly human-like work from machines, pressure is mounting to rejigger and expand their basic architecture to better jibe with the brain’s way of doing things.
If we ever want to be able to run a computer that simulates the hundred billion neurons at work in a human brain, though, each of its silicon chips will have to sip, not gulp, energy. And while computers will have to process information through pathways more organic and complex than the classic von Neumann architecture, they will have to keep up a demanding pace.
Eying those problems on the horizon, a team of Stanford University engineers led by Kwabena Boahen has developed a circuit board, and its underlying chips, that simulates the activity of a million neurons 9,000 times faster than a personal computer could and is 100,000 times more energy efficient. They reported the findings in a recent issue of IEEE.
The circuit board, called Neurogrid, consists of 16 custom-designed Neurocore chips. Each chip simulates 65,536 neurons. All told, the board can simulate 1 million neurons and billions of synaptic connections.
By way of comparison, the neural chips IBM uses consist of 256 digital neurons and a couple hundred thousand synaptic connections. Qualcomm has announced, but not yet launched, a neuromorphic chip.
“From a pure energy perspective, the brain is hard to match,” Boahen said in a news release. With 80,000 times more neurons than Neurogrid, the brain uses just three times the power, according to the article.
“The computer can compensate for its lack of parallelism by executing instructions blazingly fast, but it pays a steep cost in energy and time to shuttle far-flung data through its central processing unit,” Boahen and colleagues explain on the Neurogrid project website.
neuromorphic computing, chip, circuit board, neural networks, artificial intelligence, AI height=200Here’s how the system works, briefly: The neuromorphic chip is analog to capture the variety of ionic signals the neurons filter in the brain. It includes shared electronic circuits to maximize “synaptic” connections, which are represented by way of pairing a particular ersatz-neuron’s address on the chip to a particular spot in the RAM. To maximize speed, the circuit board retains a tree rather than a mesh network.
While the chip would save money in energy use, it’s not cheap. The prototype cost $40,000 to make. But Boahen said that adopting modern industrial manufacturing processes and producing in bulk would bring the price down to $400.
Neurocore isn’t made for the garage user, anyway. Like most neural chips and networks, it’s designed to model brain activity for researchers. To accommodate different research objectives, it can be programmed to act like different cortical layers.
But lower power usage isn’t just a cost issue. It would free future human-acting robots from cumbersome power supplies and could eventually make it safe to implant computers in human patients.
Boahen plans to test the human-like capabilities of the chip by using it to power robotic limbs.
“It is important for us to show that the components of our system replicate their biological analogs. Otherwise, we will have a difficult time convincing others that our artificial brain is working like the human brain,” the Neurogrid website concludes.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #98 on: 15-07-2014, 09:03:50 »
Izvori su užasni (Indipendent i Dejli Mejl), ali evo, naučnici napravili materijal koji je toliko taman da se skoro uopšte ne vidi - samo 0,035 posto vidljivog spektra se reflektuje sa njega. Plus provodi toplotu sedam i po puta brže nego bakar a jači je deset puta od čelika. Baciti pogled:

 

 Blackest is the new black: Scientists develop a material so dark that you can't see it...

Scientists discover the new black: British researchers devise material so dark it looks like a black hole



Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #99 on: 15-07-2014, 09:13:55 »
A sad znamo šta da Skalopu kupimo za sledeći rođendan! Britanski naučnik koji se bavi, koliko shvatam, raketama, je svoje znanje iskoristio da dizajnira šerpu koja kuva hranu 40% brže nego druge, zahvaljujući poboljšanom transferu toplote:

                                                                        British rocket scientist says he's designed a better saucepan



Flare Pans

 

scallop

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Re: Tehnicka dostignuca....
« Reply #100 on: 15-07-2014, 09:45:01 »
A ja ću tebi da poklonim fotografiju najstarije igrice na svetu. Desno su ganz novi, a levi je star najmanje 2000 g. (vide se otvori za ojačanje žicom). Inače, igra je stara najmanje 5000 g. Kako joj je grčko ime, a kako naše domaće?


Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #101 on: 15-07-2014, 09:53:37 »
Grčko - jebemliga. Srpsko - piljci!!!!!!!!!!!

scallop

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Re: Tehnicka dostignuca....
« Reply #102 on: 15-07-2014, 10:19:41 »
To je poenta. Ja mogu da objasnim zašto je raket majstor projektovao šerpu, a ti ne znaš prelepo ime piljaka - astragal. Raket majstor sigurno radi na oblogama raketnih mlaznica, a odatle do šerpe čas posla. Isto tako, mi smo u institutu radili na samozagrevanju binarnih smeša, pa smo došli do smeše za samopodgrevanje pakovanja gotovih jela. U tome je i srž vojnog finansiranja istraživanja svega i svačega. Kasnije je pitanje imaginacije kako od naivnog načiniti opasno i obratno.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

scallop

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Re: Tehnicka dostignuca....
« Reply #103 on: 20-07-2014, 09:11:34 »
THE END OF "GENIUS"


Ovo je naslov, a sadržina je:


http://www.nytimes.com/2014/07/20/opinion/sunday/the-end-of-genius.html?hp&action=click&pgtype=Homepage&module=c-column-top-span-region&region=c-column-top-span-region&WT.nav=c-column-top-span-region&_r=0


Još pre tirdesetak godina rasprava "ideja pojedinca" ili "naučni tim" imala je neki balans. Slagali smo se oko toga da timski rad ostvaruje ideju kreatinog pojedinca, ali je bilo teško zamisliti da tim kreira ideju. Kako stoje stvari, uskoro ni timski rad neće biti u centru događanje već oni koji prihvate projekat i u njega ulože pare.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

дејан

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Re: Tehnicka dostignuca....
« Reply #104 on: 21-07-2014, 15:18:29 »
Izvori su užasni (Indipendent i Dejli Mejl), ali evo, naučnici napravili materijal koji je toliko taman da se skoro uopšte ne vidi - samo 0,035 posto vidljivog spektra se reflektuje sa njega. Plus provodi toplotu sedam i po puta brže nego bakar a jači je deset puta od čelika. Baciti pogled:



http://www.surreynanosystems.com/news/19/
...barcode never lies
FLA

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #105 on: 02-08-2014, 06:35:11 »
Ovo sam video još jučer, ali surovi tempo života mi nije dao vremena da okačim. Ali evo, NASA ima prototip novog motora za kosmička plovila, koji je opisan kao "nemoguć" a ipak za sad - radi. Baza su mikrotalasi:
 
NASA tested an impossible space engine and it somehow worked
 
Quote

NASA has been testing new space travel technologies throughout its entire history, but the results of its latest experiment may be the most exciting yet — if they hold up. Earlier this week at a conference in Cleveland, Ohio, scientists with NASA's Eagleworks Laboratories in Houston, Texas, presented a paper indicating they had achieved a small amount of thrust from a container that had no traditional fuels, only microwaves, bouncing around inside it. If the results can be replicated reliably and scaled up — and that's a big "if," since NASA only produced them on a very small scale over a two-day period — they could ultimately result in ultra-light weight, ultra fast spacecraft that could carry humans to Mars in weeks instead of months, and to the nearest star system outside our own (Proxima Centurai) in just about 30 years.
 
The type of container NASA tested was based on a model for a new space engine that doesn't use weighty liquid propellant or nuclear reactors, called a Cannae Drive. The idea is that microwaves bouncing from end-to-end of a specially designed, unevenly-shaped container can create a difference in radiation pressure, causing thrust to be exerted toward the larger end of the container. A similar type of technology called an EmDrive has been demonstrated to work in small scale trials by Chinese and Argentine scientists.
 
 
 
 
 
While the amount of thrust generated in these NASA's tests was lower than previous trials — between 30 and 50 micronewtons, way less than even the weight of an iPhone, as Nova points out — the fact that any thrust whatsoever is generated without an onboard source of fuel seems to violate the conservation of momentum, a bedrock in the laws of physics.
 
 
 
Most impressively, the NASA team specifically built two Cannae Drives, including one that was designed to fail, and instead it worked. As the scientists write in their paper abstract: "thrust was observed on both test articles, even though one of the test articles was designed with the expectation that it would not produce thrust." That suggests the drive is "producing a force that is not attributable to any classical electromagnetic phenomenon," the scientists write. It may instead be interacting with the quantum vacuum — the lowest energetic state possible — but the scientists don't have much evidence to support this idea yet.
 
There are many reasons to be skeptical: the inventor of the Cannae Drive, Guido Fetta, has only a Bachelor’s Degree in Chemical Engineering and is operating his company Cannae as a for-profit venture. Still, the fact that such results were produced by NASA scientists is promising and should warrant further investigation.
 
 

scallop

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Re: Tehnicka dostignuca....
« Reply #106 on: 02-08-2014, 08:25:09 »
Eh, kad Gvido doktorat nije vid'o.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #107 on: 02-08-2014, 12:28:52 »
U ovoj postmegatrendovskoj atmosferi, to mu je plus.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #108 on: 11-08-2014, 09:42:52 »
medium.com podseća, a vezano za gorenavedeni "nemogući" kosmički pogon, da nauka generalno funkcioniše tako da ako eksperiment daje izvanredne rezultate, onda morate biti jako pažljivi da za njih date i izvanredna objašnjenja. A da u ovom slučaju to nemamo. Sve to, služeći se primerom N-zraka, starim čitav vek:

https://medium.com/starts-with-a-bang/how-to-fool-the-world-with-bad-science-7a9318dd1ae6

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #109 on: 15-09-2014, 10:00:53 »

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #110 on: 17-10-2014, 09:05:22 »
Svi naši energetski problemi će uskoro biti kao rukom odneseni  :lol:


Lockheed says makes breakthrough on fusion energy project



Quote
(Reuters) - Lockheed Martin Corp said on Wednesday it had made a technological breakthrough in developing a power source based on nuclear fusion, and the first reactors, small enough to fit on the back of a truck, could be ready for use in a decade.
 Tom McGuire, who heads the project, said he and a small team had been working on fusion energy at Lockheed's secretive Skunk Works for about four years, but were now going public to find potential partners in industry and government for their work.  Initial work demonstrated the feasibility of building a 100-megawatt reactor measuring seven feet by 10 feet, which could fit on the back of a large truck, and is about 10 times smaller than current reactors, McGuire told reporters.In a statement, the company, the Pentagon's largest supplier, said it would build and test a compact fusion reactor in less than a year, and build a prototype in five years.     In recent years, Lockheed has gotten increasingly involved in a variety of alternate energy projects, including several ocean energy projects, as it looks to offset a decline in U.S. and European military spending.Lockheed's work on fusion energy could help in developing new power sources amid increasing global conflicts over energy, and as projections show there will be a 40 percent to 50 percent increase in energy use over the next generation, McGuire said.If it proves feasible, Lockheed's work would mark a key breakthrough in a field that scientists have long eyed as promising, but which has not yet yielded viable power systems. The effort seeks to harness the energy released during nuclear fusion, when atoms combine into more stable forms. "We can make a big difference on the energy front," McGuire said, noting Lockheed's 60 years of research on nuclear fusion as a potential energy source that is safer and more efficient than current reactors based on nuclear fission.Lockheed sees the project as part of a comprehensive approach to solving global energy and climate change problems.Compact nuclear fusion would produce far less waste than coal-powered plants since it would use deuterium-tritium fuel, which can generate nearly 10 million times more energy than the same amount of fossil fuels, the company said.Ultra-dense deuterium, an isotope of hydrogen, is found in the earth's oceans, and tritium is made from natural lithium deposits.It said future reactors could use a different fuel and eliminate radioactive waste completely.McGuire said the company had several patents pending for the work and was looking for partners in academia, industry and among government laboratories to advance the work.Lockheed said it had shown it could complete a design, build and test it in as little as a year, which should produce an operational reactor in 10 years, McGuire said. A small reactor could power a U.S. Navy warship, and eliminate the need for other fuel sources that pose logistical challenges. U.S. submarines and aircraft carriers run on nuclear power, but they have large fission reactors on board that have to be replaced on a regular cycle."What makes our project really interesting and feasible is that timeline as a potential solution," McGuire said.Lockheed shares fell 0.6 percent to $175.02 amid a broad market selloff. (Editing by Jeffrey Benkoe)

scallop

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Re: Tehnicka dostignuca....
« Reply #111 on: 17-10-2014, 09:24:47 »
Sve će to da posluži za neku novu bombu.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #112 on: 17-10-2014, 09:29:55 »
Pa, dobro, sasvim je uobičajeno da mnoga istraživanja za vojne namene daju rezultate koji se koriste u civilne i sasvim mirnodopske svrhe. Tako to ide.

scallop

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Re: Tehnicka dostignuca....
« Reply #113 on: 17-10-2014, 09:49:58 »
Jel' ti Mića reče da kupiš šlauf? Pa, kupi šlauf. Dok energija fuzije stigne do nas treba dugo plivati.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #114 on: 17-10-2014, 09:55:47 »
Ne plašim se ja toliko potopa koliko najezde Crnogoraca kad im zemlja ode pod vodu  :lol:

scallop

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Re: Tehnicka dostignuca....
« Reply #115 on: 17-10-2014, 10:11:33 »
Pročitati moju jako kratku priču "More dolazi".
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

mac

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Re: Tehnicka dostignuca....
« Reply #116 on: 24-10-2014, 19:56:46 »
Napravili su novu vrstu mikroskopa, posle kog ništa više neće biti isto...

http://io9.com/this-powerful-new-microscope-will-transform-the-way-we-1650225317

Mouchette

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Re: Tehnicka dostignuca....
« Reply #117 on: 21-01-2015, 20:34:31 »
Mouse-Box kompjuter




1.4GHz ARM Cortex CPU
128GB flash storage (cloud storage optional)
Micro HDMI port
Wi-Fi connectivity
2 x USB 3.0 ports... 


Your entire PC in a mouse


http://mouchetteblog.blogspot.com/
''Ma jock, ona, u stvari, želi nasmejan svet. Ili lud.''

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #118 on: 06-05-2015, 09:20:54 »
Ako se skrolne malo gore po ovom topiku videće se vesti iz prošlog Avgusta o tome kako NASA ima na testiranju naoko "nemoguć" motor koji bi mogao da revolucioniše kosmička putovanja, kao i reakcije koje kažu da malko iskuliramo i da ništa od ovoga nije još dovoljno dokazano & obrazloženo.

Desetak meseci kasnije, situacija se i dalje podgreva. Iz NASA javljaju da naoko "nemoguć" motor izgleda "više moguć" posle novih testova:



NASA's seemingly impossible space engine looks more possible after latest test



Ali isti kritičar koji je na mediumu prošle godine polivao ladnom vodom ovu priču, sada u ulozi Forbsovog kontributora veli da i dalje ne treba da se uzbuđujemo preko neke razumne mere:



No, NASA Did Not Accidentally Invent Warp Drive





Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #119 on: 22-06-2015, 11:36:06 »
Konačno ćemo moći da ljude na internetu uvredimo bez napora potrebnog da se uvrede fizički i otkucaju na prokletom premalom na dodir osetljivom ekranu telefona...


This Device Reads Your Mind and Types Your Thoughts



Quote
When Stephen Hawking talks, a laser pointed at his face detects whether he's moving one of the only muscles he still has control over as a computer cycles through individual letters of the alphabet, determining what he’s trying to say. It's an excruciatingly slow process, and it can take several minutes for him to say anything at all. What if, instead, a computer could simply read his mind?
Scientists in Albany, New York have just demonstrated for the first time that it's possible to turn a person's thoughts into a legible phrase using what they're calling a "brain-to-text" interface.
To be clear, these are the very early days of mind reading, if you want to call it that. The Albany study, carried out by researchers at the National Center for Adaptive Neurotechnologies and the State University of New York at Albany, took place in a very controlled environment and had to employ a couple tricks to get the job done.



Here's the good news: Researchers’ computers were able to decipher seven patients’ "silent speech"—their unspoken thoughts—and translate the output as text.
And here's why you can’t go grab a brain-to-text device and hook it up to the internet just yet: For one, the patients' skulls were split open and electrode sheets were attached directly to their brains. They were also asked to read aloud from various texts (the Gettysburg Address, JFK's inaugural address, Charmed fan fiction, and a children's story) to get a baseline of what their brains were doing while they were speaking. Finally, the "dictionary" of the brainwave recognition device was limited—it wasn't selecting words from everything in the English language.
Nonetheless, Peter Brunner and his colleagues have accomplished something pretty amazing, and he does say that internet-connected brains could be coming someday. For now, brainwaves are regularly read by machines, but interpreting their meaning is always difficult.
"I liken it to having a helicopter over a crowd of cheering people. If you're near them, you can hear them cheering, but you can't hear individual people. If you put a microphone on one or two people, you're able to hear them, but you can't hear the overall picture," Brunner told me. "But if you put electrodes all over the surface of the brain—giving microphones to groups of people cheering—you can figure out what those groups are cheering for."
Of course, it's not terribly easy to find people willing to have their skulls split open to try out a mind reading device. But it turns out that there's already a clinical use for such technology. People with severe epilepsy will often wear a sheet of electrodes on their brain to determine which part of it is being overloaded during a seizure, so further treatment can take place. They wear these electrodes while they're in the hospital, waiting for a seizure to occur.
But in the meantime, there's no reason why other experiments can't take place (with their consent). Brunner said that his team "piggybacked" on their treatment.
"We were wondering if you could infer what someone was saying based on the signals sent from the surface of their brain—whether those signals are sent when they're speaking out loud or silently," Brunner, who published his research in Frontiers in Neuroscience, said. "It turns out you can to a degree that's much better than chance."
Brunner says the research was limited by his time with the patients and was also limited by their conditions: Each patient had the electrodes placed on different regions of their brain, depending on the part expected to be causing seizures. With more time to "train" the interface and more targeted electrode placement (he believes that the superior temporal gyrus, in the temporal lobe of the brain, would be ideal), brain-to-text interfaces could become much better. He also hopes to make interfaces that don't need to be placed directly on the brain.
"This could be relevant for people who suffer from ALS—their muscles don't work but there's no effect on the brain," he said. "You would probably want to have a person train the interface before they're fully locked in."
Brunner's device wasn't connected to the internet, but he said there's no reason why it couldn't be, which would allow real-time brain-connected communication. Maybe that whole internet of brains isn't actually so far off.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #120 on: 01-07-2015, 10:04:56 »
Airplane Coatings Help Recoup Fuel Efficiency Lost To Bug Splatter



Quote
When bugs explode against the wings of oncoming airplanes, they create a sticky problem for aerospace engineers.
   “A bug doesn’t know that it’s been catastrophically destroyed,” says Emilie J. (Mia) Siochi, a materials scientist with the National Aeronautics & Space Administration. “Its blood starts to thicken as if it’s healing any other injury.”
   This bug blood, or hemolymph, clings to an airplane’s wings, disrupting the smooth airflow over them and sapping the aircraft’s fuel efficiency.
 
 NASA scientists are now developing coatings that help aircraft shed or repel bug guts during flight. After screening nearly 200 different coating formulations, the NASA researchers recently flight-tested a handful of promising candidates on a Boeing ecoDemonstrator 757 aircraft in Shreveport, La. The team explored different combinations of polymer chemistry and surface structure and reports that it has created a coating that could reduce the amount of insect insides stuck to the wings by up to 40%.
   With further optimization, such coatings could allow planes to use 5% less fuel, Siochi says. Although that may not sound like much, it adds up. “That could be millions of dollars in fuel savings,” Siochi explains. The bump in fuel efficiency would also curb the amount of greenhouse gases emitted by planes, she says.
   These coating studies are part of NASA’s Environmentally Responsible Aviation Project, which launched in 2009 to study new technologies to make flying more eco-friendly. But researchers have been trying to reliably debug planes in flight since the middle of the 20th century, Siochi says. Her own interest in the problem goes back to her master’s degree work on splatter-resistant coatings in the 1980s.
   NASA’s more recent studies started with an examination of commercially available products covering a range of chemistries, including polyvinyl alcohol, polysiloxanes, and fluorinated polymers.
   To test these materials in the lab, researchers developed a pneumatic launcher to fire living bugs at a sample coating. They first used crickets as ammunition, but a physicist colleague urged them to switch to fruit flies, which would be more representative of what planes hit during takeoff and landing.
   Of the off-the-shelf coatings, Siochi says, the most promising was a commercial fluorocarbon that’s usually used to prevent printed electronic circuits from getting gunked up—though presumably not by eviscerating insects at 150 mph. Despite its promise, the fluorocarbon simply couldn’t slough off enough bug juice to maintain optimum airflow over plane wings.
 
 So the NASA team crafted its own coatings to solve the problem, which is a rather daunting one considering the diversity of bug gut chemistry. When insects collide with an aluminum plane wing, a bug’s exoskeleton cracks open and bounces off. “You’re basically left with sugars, fats, and proteins” on the wing, says Lynn S. Kimsey, an entomologist at the University of California, Davis, who helped support NASA’s flight tests this spring. “Sugars are easy to get off. Fats and proteins are a different story.”
   Once a bug’s hemolymph is “activated” by an impact, its lipid-encased hemocyte cells and phenoloxidase enzymes become tacky and adhere to plane wings. But wing coatings also have to contend with other hangers-on: pigments from red-eyed hoverflies, clear goop from honeybee stomachs, and yellow yolks from the eggs of female insects.
   Developing a coating that can deal with all of that and more is a challenge, but NASA has the polymer chemists who can do it, Siochi says. Right now, the agency isn’t disclosing the precise composition of the coatings it tested in Shreveport, but a 2013 publication gives some ideas as to what researchers have investigated previously (Prog. Org. Coat. 2013, DOI: 10.1016/j.porgcoat.2012.08.009).
   For example, the team looked at glycol-modified surfaces to try and minimize protein adhesion, as well as a hydroxyl-functionalized methacrylate that frustrates hemocyte accumulation. NASA is patenting its newly tested coatings and has announced that more information is forthcoming.
   But polymer chemistry isn’t the only factor that contributes to a coating’s nonstickiness. By incorporating structures such as silica nanoparticles into the coatings, the NASA researchers worked to give the wings rough surfaces like those found on many superhydrophobic materials. The trick is to make a surface with protrusions large enough to block bugs’ guts from sticking but small enough that they themselves don’t disrupt airflow, Siochi says.
   The team appears to have found a balance, but it is still unclear whether the coatings will be a viable solution to the bug problem. The leading edge of an airplane wing is a harsh environment. Dust and rain can erode the surface coatings during flight, Siochi says. It remains to be seen how much a coating’s upkeep offsets the fuel savings it affords.
   Still, the ramifications of this work are broad: Bug guts stick to a lot of things other than plane wings, points out Kimsey of UC Davis. “Think about all the people who whine about cleaning bugs off their radiator grilles.” 
      Chemical & Engineering NewsISSN 0009-2347Copyright © 2015 American Chemical Society 



Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #122 on: 29-07-2015, 07:23:21 »
OMG!!!!!!!!!!!!!!
 
http://youtu.be/A54CBfRBTYU

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #123 on: 04-08-2015, 10:09:01 »
Research Scientists to Use Network Much Faster Than Internet



Quote
SAN FRANCISCO —  A series of ultra-high-speed fiber-optic cables will weave a cluster of West Coast university laboratories and supercomputer centers into a network called the Pacific Research Platform as part of a five-year $5 million dollar grant from the National Science Foundation.
The network is meant to keep pace with the vast acceleration of data collection in fields such as physics, astronomy and genetics. It will not be directly connected to the Internet, but will make it possible to move data at speeds of 10 gigabits to 100 gigabits among 10 University of California campuses and 10 other universities and research institutions in several states, tens or hundreds of times faster than is typical now.
The challenge in moving large amounts of scientific data is that the open Internet is designed for transferring small amounts of data, like web pages, said Thomas A. DeFanti, a specialist in scientific visualization at the California Institute for Telecommunications and Information Technology, or Calit2, at the University of California, San Diego. While a conventional network connection might be rated at 10 gigabits per second, in practice scientists trying to transfer large amounts of data often find that the real rate is only a fraction of that capacity.
The new network will also serve as a model for future computer networks in the same way the original NSFnet, created in 1985 to link research institutions, eventually became part of the backbone for the Internet, said Larry Smarr, an astrophysicist who is director of Calit2 and the principal investigator for the new project.
NSFnet connected five supercomputer centers with 56-kilobit modems. In the three decades since, network speeds have increased dramatically, but not nearly enough to handle a coming generation of computers capable of a quintillion operations per second. This week the Obama administration announced that the United States is committed to creating what is known as the “exascale” supercomputing era, with machines roughly 30 times faster than today’s fastest computer, on what is called the “petascale.”
“I believe that this infrastructure will be for decades to come the kind of architecture by which you use petascale and exascale computers,” Dr. Smarr said. Increasingly digital science is generating torrents of data. For example, an astronomy effort called the Intermediate Palomar Transient Factory, at the Palomar Observatory in Southern California, continuously scans the dark sky looking for new phenomena. Over all, the Palomar observational system captures roughly 30 terabytes of data per night. By contrast, a Library of Congress project that archives the entire World Wide Web collects about 5 terabytes per month.
In addition to moving data between laboratories, the high-speed network will make new kinds of distributed computing for scientific applications possible. For example, physicists working with data collected by the Large Hadron Collider at CERN in Switzerland initially kept duplicate copies of files at many different computer clusters around the world, said Frank Wuerthwein, a physicist at the University of California, San Diego. More recently, he said, as high-speed links have become more widely available, experimental data is often kept in a single location and used for experiments by scientists running programs from remote locations, at a significant cost savings.
Further, the new network has been designed with hardware security features to protect it from the attacks that routinely bedevil computers connected to the Internet. Recently, one server at the University of California, San Diego, that was connected to the open Internet counted 35,000 false login attempts in one day, said Dr. Smarr.
The new network is an extension of an existing intra-campus effort by the National Science Foundation to create islands of high-speed connectivity for campus researchers. In recent years the agency has invested more than $500,000 dollars on each of roughly 100 campuses nationwide.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #124 on: 11-09-2015, 09:47:08 »
Vanity Fair ima dobar članak o Oculus Riftu, predvodniku najnovijeg talasa VR tehnologije:



Why Facebook’s $2 Billion Bet on Oculus Rift Might One Day Connect Everyone on Earth







Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #125 on: 04-10-2015, 07:43:51 »
IBM Scientists Find New Way to Shrink Transistors
 
Quote

In the semiconductor business, it is called the “red brick wall” — the limit of the industry’s ability to shrink transistors beyond a certain size.
On Thursday, however, IBM scientists reported that they now believe they see a path around the wall. Writing in the journal Science, a team at the company’s Thomas J. Watson Research Center said it has found a new way to make transistors from parallel rows of carbon nanotubes.
The advance is based on a new way to connect ultrathin metal wires to the nanotubes that will make it possible to continue shrinking the width of the wires without increasing electrical resistance.
One of the principal challenges facing chip makers is that resistance and heat increase as wires become smaller, and that limits the speed of chips, which contain transistors.
The advance would make it possible, probably sometime after the beginning of the next decade, to shrink the contact point between the two materials to just 40 atoms in width, the researchers said. Three years later, the number will shrink to just 28 atoms, they predicted.
 
The ability to reduce electrical resistance will not only make it possible to extend the process of shrinking transistors beyond long-held beliefs about physical limits. It may also be the key to once again increasing the speed of computer processors, which has been stalled for the last decade.
The report represents a big advance for an exotic semiconductor material that has long held great promise but has also proved maddeningly difficult for scientists to work with. Single-wall carbon nanotubes are strawlike structures that are a composed of a one-atom thick matrix of carbon atoms rolled into an infinitesimally small tube.
The challenge of carbon nanotubes in their typical state is that they form what scientists call a giant “hairball” of interwoven molecules.
However, researchers have found ways to align them closely and in regularly spaced rows and deposit them on silicon wafers with great precision. They then serve the crucial role of a semiconductor, allowing electrical current to be switched on and off in a computer circuit.
Until now, however, they have been just one of a range of new materials that have been seen as candidates to replace silicon, which has for more than half a century been the material of choice for chip makers.
“Of all the possible materials, this one is at the top of the list by a long shot,” said Dario Gil, vice president for science and technology at IBM Research.
At the same time, he acknowledged that challenges remained in perfecting carbon nanotube transistors, but he said that IBM was increasingly confident that they could be overcome.
“By way of analogy, in the past we have had to carve in marble to create a statue,” Dr. Gil said, referring to the photolithographic etching process that is the standard industry manufacturing technique today. In the future, researchers are looking to materials that will “self-assemble.”
“With carbon nanotubes, you begin with dust and you have to find a way to assemble it into a statue,” he said. Advertisement
  Continue reading the main story   Advertisement
  Continue reading the main story Computer chips such as microprocessors are made up of vast interconnected arrays of transistors — tiny switches that can turn electrical flows on and off. Computer processors have become vastly more powerful because it has been possible to double the number of silicon transistors etched into silicon chips at two-year intervals for many decades. Today, modern microprocessors are composed of billions of switches capable of switching on and off in just billionths of a second.
However, during the last decade, the pace and power of semiconductor technology has begun to slow. The switching speed of computer chips stopped increasing because heat created by ultrafast processors was rising to the point where the chips would break.
More recently, for most of the industry, the cost of transistors has ceased to decline with each new generation. This has undercut the tremendous power of the technology to create new markets. And this year, Intel announced that the challenges and costs of bringing a new generation of technology to market had forced it to slow the every-two-year pace it had been on for more than a decade.
Now the industry has a new reason for optimism.
“Carbon nanotube field-effect transistors are excellent candidates for improving the performance and energy efficiency of future computing systems,” said Subhasish Mitra, a Stanford University electrical engineer.
The IBM researchers said that, in simulations, they had been able to design versions of microprocessors that were optimized either for high performance or for low power consumption.
By simply swapping carbon nanotube transistors for conventional ones in a simulated IBM microprocessor, they were able to increase speeds by a factor of seven, or, alternatively, achieve power savings almost as significant, said Wilfried Haensch, an IBM physicist who is a member of the research group.
    Correction: October 1, 2015
 An earlier version of this article misidentified the IBM employee who spoke of challenges and potential of perfecting carbon nanotube transistors. He is Dario Gil, not Shu-Jen Han. An earlier version also misstated the speed increase achieved by IBM researchers by swapping carbon nanotube transistors for conventional ones in a simulated microprocessor. They increased speeds by a factor of seven, not seven orders of magnitude.
   

ridiculus

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    • Strahoslovni domen999
Re: Tehnicka dostignuca....
« Reply #126 on: 23-11-2015, 22:50:02 »
Ovo nije o nekoj konkretnoj tehnologiji, ali Forbes ima zanimljiv članak koji pokazuje da ne treba tek tako otpisati Japan:

Japan ili SAD?
Dok ima smrti, ima i nade.


Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #128 on: 05-12-2015, 07:21:33 »
15,000 'unsafe' hoverboards seized in Britain
 
Quote
LONDON — If you're hoping for a hoverboard this Christmas you may be left disappointed. Thousands of the in-demand motorised self-balancing devices were seized by British authorities at ports and borders because they didn't pass basic safety checks.
 
More than 17,000 hoverboards imported from outside the European Union have been examined over the past seven weeks, and 15,000 of them didn't make the cut, according to a statement from the National Trading Standards on Thursday.
 
Many of the seized devices were at risk of exploding or catching fire.
 
Officers at ports have reported a "huge spike" in the number of hoverboards arriving into the country and large numbers of the items are being sent for testing.
 
“We suspect that most of these products are being imported for onward sale domestically as Christmas approaches," Chair of the National Trading Standards Toby Harris said.
"We urge consumers to be on their guard when purchasing these products."
 
The national body has released a tip sheet for people who buying hoverboards — telling them to never leave them unattended while charging. 
 
The warning comes weeks after firefighters rushed to a blaze in a bedroom London after a charging hoverboard caught fire. The occupant of the property heard a massive bang and fled after their electric uni-cycle sparked a blaze.
 
This week in the United States, a man in Alabama posted a video of his hoverboard in flames three days after buying it.
 


Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #130 on: 08-02-2016, 07:54:31 »
A šta kad bismo mogli da tekst unosimo samo korišćenjem zenica?
 
 
How to write with your mind? (or: Decoding attention through pupillometry)
 
Evo ga i akademski članak (čitav dostupan za čitanje):
 The Mind-Writing Pupil: A Human-Computer Interface Based on Decoding of Covert Attention through Pupillometry
A evo i video za najlenjije među nama:
 
http://youtu.be/RHOyZFMI4l8

lilit

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Re: Tehnicka dostignuca....
« Reply #131 on: 08-02-2016, 09:00:18 »
da, da, ovo je ultra stvar. jedino mi je žao što neću doživeti da vidim usavršenu verziju.
That’s how it is with people. Nobody cares how it works as long as it works.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #132 on: 08-02-2016, 09:04:41 »
 :-?  Dotle je došlo? Pa šta onda mi stariji treba da kažemo?

Re: Tehnicka dostignuca....
« Reply #133 on: 08-02-2016, 16:35:28 »

Soft Robotic Exosuit


Типично америчко рекламно просеравање и не би ми сметало да није у питању Харвард... СВА истраживања и иновације и алгоритми у вези људског егзоскелета и роботике (ходајуће и хуманоидне) заснивају се на радовима Миомира Вукобратовића од прије 50 година и суштина се није промијенила.

https://en.wikipedia.org/wiki/Miomir_Vukobratović

https://en.wikipedia.org/wiki/Zero_moment_point

http://www.cs.cmu.edu/~cga/legs/vukobratovic.pdf

http://geek-mag.com/posts/248270/

Ево руска компанија која продаје егзоскелете за инвалиде поштено пише -
Code: [Select]
http://www.exoatlet.com/#!ourstory/cwi0
лажни профил

Re: Tehnicka dostignuca....
« Reply #134 on: 08-02-2016, 16:46:27 »
Ako se skrolne malo gore po ovom topiku videće se vesti iz prošlog Avgusta o tome kako NASA ima na testiranju naoko "nemoguć" motor koji bi mogao da revolucioniše kosmička putovanja, kao i reakcije koje kažu da malko iskuliramo i da ništa od ovoga nije još dovoljno dokazano & obrazloženo.

Desetak meseci kasnije, situacija se i dalje podgreva. Iz NASA javljaju da naoko "nemoguć" motor izgleda "više moguć" posle novih testova:



NASA's seemingly impossible space engine looks more possible after latest test



Ali isti kritičar koji je na mediumu prošle godine polivao ladnom vodom ovu priču, sada u ulozi Forbsovog kontributora veli da i dalje ne treba da se uzbuđujemo preko neke razumne mere:



No, NASA Did Not Accidentally Invent Warp Drive

То она наса која увози руске моторе за своје ракете и која не умије да ископира технологију стару преко 50 година у тим моторима?  xrofl
Нек се играју ђеца  :!: има се пара. Умјесто да развијају нуклеарни погон што би стварно било напредак...
лажни профил

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #135 on: 08-02-2016, 16:52:39 »
Ma znaš da oni stalno kukaju kako ih krajcaju za pare, kako nemaju od čega i sa čim... dobro je da i ovoliko rade.  :lol: :lol:

Re: Tehnicka dostignuca....
« Reply #136 on: 08-02-2016, 17:01:32 »
Ma znaš da oni stalno kukaju kako ih krajcaju za pare, kako nemaju od čega i sa čim... dobro je da i ovoliko rade.  :lol: :lol:

Ma vijesti iz nase je kao spanska serija  :shock:
лажни профил

дејан

  • омнирелигиозни фанатични фундаменталиста
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Re: Tehnicka dostignuca....
« Reply #137 on: 09-02-2016, 10:52:14 »
само да додам детаљнији вики унос за м.вукобратoвића
мој добар друг је имао част да ради са вукобратовићем током 80тих...ствари које смо ми правили седамдесетих и осамдесетих су биле испред тадашњег јапана, САДа и СССРа
...barcode never lies
FLA

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #138 on: 09-02-2016, 11:01:43 »
Da, to je jedna od stvari koju je sasvim upropastio raspad Jugoslavije i sve što je uz to išlo. I ja se sećam koliko se na tadašnjoj našoj televiziji sa ponosom pričalo o robotici iz domaće radinosti.

Re: Tehnicka dostignuca....
« Reply #139 on: 20-02-2016, 06:18:45 »
OMG!!!!!!!!!!!!!!
 
http://youtu.be/A54CBfRBTYU

А виђи Фјодора што чини -
https://www.youtube.com/watch?v=9EI4qh8NNzw
https://www.youtube.com/watch?v=lPuhNi_TblA
https://www.youtube.com/watch?v=-37jQwgHaLA
А ево га и његов рођак Аватар -
https://www.youtube.com/watch?v=tBaY35FwA68

Иде Аватар на руску космичку станицу за коју годину, а овај његов старији безноги рођак САР-401 је требао да иде на међународну космичку станицу али одустали, можда због санкција…

https://www.youtube.com/watch?v=z9Bve_qd1Ng
https://www.youtube.com/watch?v=KSE6dYCv07U
https://www.youtube.com/watch?v=obu3pG1CCCs

лажни профил

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #140 on: 25-02-2016, 10:22:19 »
Ako nešto zvuči kao suviše dobro da bi bilo istinito... obično i jeste suviše dobro da bi bilo istinito. Tako da ove priče o superbrzom internetu koji bi bio prenošen svetlošću treba konzumirati solidno posoljene. Ali dobro zvuče.



Internet by light promises to leave Wi-Fi eating dust



Quote
Barcelona (AFP) - Connecting your smartphone to the web with just a lamp -- that is the promise of Li-Fi, featuring  Internet access 100 times faster than Wi-Fi with revolutionary wireless technology.
French start-up Oledcomm demonstrated the technology at the Mobile World Congress, the world's biggest mobile fair, in Barcelona. As soon as a smartphone was placed under an office lamp, it started playing a video.
The big advantage of Li-Fi, short for "light fidelity", is its lightning speed.
Laboratory tests have shown theoretical speeds of over 200 Gbps -- fast enough to "download the equivalent of 23 DVDs in one second", the founder and head of Oledcomm, Suat Topsu, told AFP.
"Li-Fi allows speeds that are 100 times faster than Wi-Fi" which uses radio waves to transmit data, he added.
The technology uses the frequencies generated by LED bulbs -- which flicker on and off imperceptibly thousands of times a second -- to beam information through the air, leading it to be dubbed the "digital equivalent of Morse Code".


A delegate checks his smartphone at the Mobile World Congress in Barcelona, on February 22, 2016 (AF …
It started making its way out of laboratories in 2015 to be tested in everyday settings in France, a Li-Fi pioneer, such as a museums and shopping malls. It has also seen test runs in Belgium, Estonia and India.
Dutch medical equipment and lighting group Philips is reportedly interested in the technology and Apple may integrate it in its next smartphone, the iPhone7, due out at the end of the year, according to tech media.
With analysts predicting the number of objects that are connected to the Internet soaring to 50 million by 2020 and the spectrum for radio waves used by Wi-Fi in short supply, Li-Fi offers a viable alternative, according to its promoters.
"We are going to connect our coffee machine, our washing machine, our tooth brush. But you can't have more than ten objects connected in Bluetooth or Wi-Fi without interference," said Topsu.
Deepak Solanki, the founder and chief executive of Estonian firm Velmenni which tested Li-fi in an industrial space last year, told AFP he expected that "two years down the line the technology can be commercialised and people can see its use at different levels."


Li-Fi has been tested in France, Belgium, Estonia and India (AFP Photo/Sam Yeh)
- 'Still laboratory technology' -
Analysts said it was still hard to say if Li-Fi will become the new Wi-Fi.
"It is still a laboratory technology," said Frederic Sarrat, an analyst and consultancy firm PwC.
Much will depend on how Wi-Fi evolves in the coming years, said Gartner chief analyst Jim Tully.
"Wi-Fi has shown a capability to continuously increase its communication speed with each successive generation of the technology," he told AFP.


Li-Fi (Light-Fidelity) has reached speeds of over 200 Gbps (AFP Photo/Jung Yeon-Je)
Li-fi has its drawbacks -- it only works if a smartphone or other device is placed directly in the light and it cannot travel through walls.
This restricts its use to smaller spaces, but Tully said this could limit the risk of data theft.
"Unlike Wi-Fi, Li-Fi can potentially be directed and beamed at a particular user in order to enhance the privacy of transmissions," he said.
Backers of Li-Fi say it would also be ideal in places where Wi-Fi is restricted to some areas such as schools and hospitals.
"Li-fi has a place in hospitals because it does not create interference with medical materials," said Joel Denimal, head of French lighting manufacturer Coolight.
In supermarkets it could be used to give information about a product, or in museums about a painting, by using lamps placed nearby.
It could also be useful on aircraft, in underground garages and any place where lack of Internet connection is an issue.
But Li-Fi also requires that devices be equipped with additional technology such as a card reader, or dongle, to function. This gives it a "cost disadvantage", said Tully.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #141 on: 03-03-2016, 09:14:56 »
Solar cells as light as a soap bubble



Quote
Imagine solar cells so thin, flexible, and lightweight that they could be placed on almost any material or surface, including your hat, shirt, or smartphone, or even on a sheet of paper or a helium balloon.
Researchers at MIT have now demonstrated just such a technology: the thinnest, lightest solar cells ever produced. Though it may take years to develop into a commercial product, the laboratory proof-of-concept shows a new approach to making solar cells that could help power the next generation of portable electronic devices.
The new process is described in a paper by MIT professor Vladimir Bulović, research scientist Annie Wang, and doctoral student Joel Jean, in the journal Organic Electronics.
Bulović, MIT’s associate dean for innovation and the Fariborz Maseeh (1990) Professor of Emerging Technology, says the key to the new approach is to make the solar cell, the substrate that supports it, and a protective overcoating to shield it from the environment, all in one process. The substrate is made in place and never needs to be handled, cleaned, or removed from the vacuum during fabrication, thus minimizing exposure to dust or other contaminants that could degrade the cell’s performance.
“The innovative step is the realization that you can grow the substrate at the same time as you grow the device,” Bulović says.
In this initial proof-of-concept experiment, the team used a common flexible polymer called parylene as both the substrate and the overcoating, and an organic material called DBP as the primary light-absorbing layer. Parylene is a commercially available plastic coating used widely to protect implanted biomedical devices and printed circuit boards from environmental damage. The entire process takes place in a vacuum chamber at room temperature and without the use of any solvents, unlike conventional solar-cell manufacturing, which requires high temperatures and harsh chemicals. In this case, both the substrate and the solar cell are “grown” using established vapor deposition techniques.
One process, many materials
The team emphasizes that these particular choices of materials were just examples, and that it is the in-line substrate manufacturing process that is the key innovation. Different materials could be used for the substrate and encapsulation layers, and different types of thin-film solar cell materials, including quantum dots or perovskites, could be substituted for the organic layers used in initial tests.
But already, the team has achieved the thinnest and lightest complete solar cells ever made, they say. To demonstrate just how thin and lightweight the cells are, the researchers draped a working cell on top of a soap bubble, without popping the bubble. The researchers acknowledge that this cell may be too thin to be practical — “If you breathe too hard, you might blow it away,” says Jean — but parylene films of thicknesses of up to 80 microns can be deposited easily using commercial equipment, without losing the other benefits of in-line substrate formation.
A flexible parylene film, similar to kitchen cling-wrap but only one-tenth as thick, is first deposited on a sturdier carrier material – in this case, glass. Figuring out how to cleanly separate the thin material from the glass was a key challenge, explains Wang, who has spent many years working with parylene.
The researchers lift the entire parylene/solar cell/parylene stack off the carrier after the  fabrication process is complete, using a frame made of flexible film. The final ultra-thin, flexible solar cells, including substrate and overcoating, are just one-fiftieth of the thickness of a human hair and one-thousandth of the thickness of equivalent cells on glass substrates — about two micrometers thick — yet they convert sunlight into electricity just as efficiently as their glass-based counterparts.
No miracles needed
“We put our carrier in a vacuum system, then we deposit everything else on top of it, and then peel the whole thing off,” explains Wang. Bulović says that like most new inventions, it all sounds very simple — once it’s been done. But actually developing the techniques to make the process work required years of effort.
While they used a glass carrier for their solar cells, Jean says “it could be something else. You could use almost any material,” since the processing takes place under such benign conditions. The substrate and solar cell could be deposited directly on fabric or paper, for example.
While the solar cell in this demonstration device is not especially efficient, because of its low weight, its power-to-weight ratio is among the highest ever achieved. That’s important for applications where weight is important, such as on spacecraft or on high-altitude helium balloons used for research. Whereas a typical silicon-based solar module, whose weight is dominated by a glass cover, may produce about 15 watts of power per kilogram of weight, the new cells have already demonstrated an output of 6 watts per gram — about 400 times higher.
“It could be so light that you don’t even know it’s there, on your shirt or on your notebook,” Bulović says. “These cells could simply be an add-on to existing structures.”
Still, this is early, laboratory-scale work, and developing it into a manufacturable product will take time, the team says. Yet while commercial success in the short term may be uncertain, this work could open up new applications for solar power in the long term. “We have a proof-of-concept that works,” Bulović says. The next question is, “How many miracles does it take to make it scalable? We think it’s a lot of hard work ahead, but likely no miracles needed.”
“This demonstration by the MIT team is almost an order of magnitude thinner and lighter” than the previous record holder, says Max Shtein, an associate professor of materials science and engineering, chemical engineering, and applied physics, at the University of Michigan, who was not involved in this work. As a result, he says, it “has tremendous implications for maximizing power-to-weight (important for aerospace applications, for example), and for the ability to simply laminate photovoltaic cells onto existing structures.”
“This is very high quality work,” Shtein adds, with a “creative concept, careful experimental set-up, very well written paper, and lots of good contextual information.” And, he says, “The overall recipe is simple enough that I could see scale-up as possible.”
The work was supported by Eni S.p.A. via the Eni-MIT Solar Frontiers Center, and by the National Science Foundation.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #142 on: 28-03-2016, 08:08:42 »
Is old tech putting banks under threat of extinction?





Quote
You put your card in the cash machine but nothing comes out. The bank's IT systems have crashed again.
But you need money fast, so what do you do?
It's an unsettling scenario that is likely to become more common over the next few years as the big banks try to upgrade their IT systems, experts are warning.
Global banking giant HSBC is just one of several major banks that have had intermittent problems with their technology, leaving customers unable to access online bank accounts and other services. Bank of America, Commonwealth Bank of Australia, ANZ Bank, Royal Bank of Scotland and NatWest have all suffered similar issues.
And these system failures - or outages in the jargon - undermine confidence in traditional banking and encourage more competition from nimbler start-ups.


"For the next five years - and we're talking globally - every incumbent banking player who's been around for a while will have an increased risk of outages," says Julian Skan, managing director of financial services at consultancy Accenture.Legacy issueThe problem is that the old mainframe computers - the workhorses of the global banking industry - have been chugging away keeping tabs on all our transactions for decades now. They're slow and reliable.
But the world has changed.
We've gone mobile and online. We expect real-time transactions and access to financial services around the clock.


The new computer systems and programming languages designed to cope with this fundamental shift in our behaviour don't interact well with the old, slower back-office systems.
Layers and layers of IT have built up over the years, gradually hobbling banks' ability to innovate and respond to this new world.
"Very often banking groups that have grown by acquisition have never fully integrated their systems," says Mr Skan.
"When a bank reaches a certain size it becomes too risky to change the core technology, so you build layers on top, and that adds complexity."'The plane would crash'There can be hundreds of applications needing management just on the retail side of banking, says Sameet Gupte, global head of banking and finance for tech consultancy Virtusa, which names nine of the top 10 biggest banks as clients.
"Now expand that globally and include all the applications serving the investment banking side and the number of applications can run into the thousands," he says.
Mr Gupte likens the IT challenge big banks face to refitting an aeroplane while it's in the air.


"If you tried to change the crew, the engine, the navigation system, the wings, and everything else, all at once while in the sky, the plane would crash," he tells the BBC.
"This is the same with banking systems: if you try and change everything all at once then you will end up having to run two banks at once, in case anything went wrong, doubling your cost and increasing your risk."
This is why banks take a cautious approach to upgrades, changing things gradually, he says. But this takes time and leaves the field open to nimbler rivals. Media captionThe rise of the banking app? "It's a challenge for banks, no question," says Ann Cairns, president of international markets at payments processing giant, MasterCard, which numbers 27,000 banks as clients around the world.
"If a bank needs to change out its core accounting platform it can take years to upgrade."
Not to mention the hundreds of millions of dollars it can cost.Threats Alistair Newton, research vice-president at tech consultancy Gartner, says: "These legacy systems brought scale and stability to big banks, but now they need flexibility and speed.
"We're reaching a tipping point where the benefits of upgrading will soon outweigh the costs."
This is because app-only banks like Atom Bank and fledgling start-up Mondo are unencumbered by old tech and building responsive, agile systems for the smartphone generation, with modish features like "authentication by selfie" and video chat customer service.


"Kids now want a cool experience on the phone. Banks are no longer the monoliths to be feared and respected," says Mr Gupte.
Another financial start-up with technology at its core is Future Finance, a Dublin-based firm specialising in making loans to students in the UK and Germany.
Brian Norton, founder and chief executive, says: "We built our systems from scratch so we get real-time database visibility and we look at a substantial amount of data to help us make our decisions.
"Everything is stored securely in the Microsoft Azure cloud and even our loan agreements are signed electronically, handled by Docusign."


The start-up has lent £25m to 3,500 customers so far but already sees the potential to expand into other financial products for students and graduates, Mr Norton says.
Money transfer services like WorldRemit, Azimo and TransferWise are using the latest technology to reduce the costs of sending money abroad, nibbling away at a traditionally lucrative business that banks used to subsidise less profitable parts, such as retail banking.
And peer-to-peer lenders, such as Zopa and RateSetter, are offering alternatives to personal loans sold by banks, albeit on a modest scale.
Another huge threat on the horizon for banks comes in the form of tech giants such as Google, Amazon, Facebook . In-app payments within social media environments are already becoming the norm, for example.TrustSo are banks' days numbered?
While they may sometimes resemble lumbering dinosaurs under threat of extinction because of their inability to adapt to a rapidly changing environment, their size and age could also be their strength.


"People might not like banks in the same way that they like their social media providers, but they do trust them more," says Accenture's Mr Skan.
MasterCard's Ms Cairns agrees, asking: "Would you feel happy putting your money with a tech company? Banks are heavily regulated - they're just safer."
But "they need to start thinking and behaving like start-ups," says Chris O'Malley, chief executive of Compuware, a tech company trying to bridge the gap between mainframes and the fast-paced world of app development.
Technology of Business will explore this question later in our current financial technology series.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #143 on: 28-03-2016, 08:24:17 »
Majkrosoft reklamira svoju "holoport" tehnologiju. Da juče nisam gledao epizodu Silicon Valley u kojoj se ovaj koncept parodira dve godine ranije, još bih se i uzbudio  :lol: :lol: :lol:



You’ll soon be able to ‘holoport’ anywhere in the world with Microsoft


Quote
Microsoft research manager Shahram Izadi is showing off the company’s latest innovation using HoloLens: ‘holoportation,’ enabling him to appear as if he’s there in real-time, anywhere in the world.
His image is captured in 3D by cameras placed around the room. This is then stitched together, compressed and transmitted so someone else can see, hear and interact with him as though he’s right there with them.


You can even playback previous interactions, as though “walking into a living memory,” and miniaturize the content to make it easier to consume.
“Imagine being able to virtually teleport from one place to another,” he says. Well, if you’re the owner of a HoloLens, you soon could do.
He posits that this might well be the next generation of Skype-style interactions with distant family members.
But so far, the technology isn’t in the wild and HoloLens is still $3,000 to buy today.


  Microsoft demos 'holoportation' 3D presence tech with HoloLens on Gamasutra 

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #144 on: 30-03-2016, 07:33:50 »
Volvo smišlja da u nove modele njihovih automobila ulazite bez fizičkog ključa, a pomoću digitalnog ključa koji je zapravo aplikacija instalirana na vašem telefonu i kojom možete drugmi ljudima privremeno ili stalno davati pristup istim kolima itd. Udobno!!!!!!!!! Naravno, ono što digitalizacija daje, to ona i uzima, od pražnjenja baterije do hakovanja telefona, nebrojene su hipotetičke situacije u kojima ćete psovati kroz zube što nemate normalan, mehanički ključ umesto ove glupave novotarije.


Volvo wants you to ditch car keys for its new smartphone app


Quote
Lending your car to a friend could be as easy as sending a text. That's the future Volvo is imaging with its smartphone app that enables keyless entry for the driver—and anyone with permission to enter.
Announced earlier this year and now prominently on display at the New York International Auto Show, the app does away with key fobs and puts the key right on the user's phone.
Using the device's Bluetooth capability, the app can do just about everything that a standard key could do—from unlocking the doors to popping open the trunk to even starting the engine of the vehicle without turning the ignition.



Beyond just convenience for the primary holder, the Volvo app also allows others to take the wheel without requiring a physical key. Users are able to grant digital keys to others, allowing them temporary or ongoing access to the car.
The process requires just a few taps, and the recipient of the digital key is provided with all the relevant information they'd need to know about the car: the make and model, where it's located, and how long they will be able to use the vehicle.
It's a relatively simple innovation—keyless entry isn't new, and a smartphone app seems like the logical evolution of the feature—but it does present some interesting usage cases in the future. For the average person, it just makes it easier to share possession of a car, but community cars and ride-hailing services could conceivably spring out from this development.
It also comes with a potentially increased risk. Researchers in Germany recently highlighted just how susceptible wireless key fobs are to attack; the group successfully gained access to 24 vehicles using a makeshift remote hijacking device.
Ideally, the phone and Bluetooth connection would provide a more secure means of communication between device and vehicle and may be able to avoid those concerns, but the risk of hacking is always present once you go digital.
That's all a little down the road, though; Volvo is testing the app at the Gothenburg airport in Sweden with car-sharing firm Sunfleet. Commercial versions of the service won't be available into 2017, and only with limited availability—and of course, physical keys will still be available for those who want a new car but fear change.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #145 on: 03-04-2016, 07:22:33 »
Da se zabeleži da je gauda na Amazon uspešan u prvim koracima u svemir:
 
 Jeff Bezos' space company Blue Origin launches and successfully lands rocket
 
Quote
"Launch. Land. Repeat."
 That's the approach Jeff Bezos' space company, Blue Origin, is taking to test its New Shepard, which launched and landed safely on Saturday.
   
 The launch in West Texas is the third for the New Shepard rocket, which is named after Alan Shepard, the first American to go to space.
 
 Both the rocket and the capsule, which will eventually carry paying customers, landed successfully. During this test, the capsule was carrying two microgravity experiments from the Southwest Research Institute and the University of Central Florida.
 
 The SRI contributed its "Box of Rocks Experiment" (BORE) -- a box of loose rocks that "mimic the surface conditions on asteroids." The second experiment, "Collisions Into Dust Experiment" (COLLIDE), involved a box of dust and a marble that "mimic impacts between objects in microgravity."
 
 Unlike other capsules, Blue Origin's is completely automated so no pilots are inside to control it -- this reduces risk of casualties and human error.
 
 Related: Jeff Bezos says he'll put people in space in two years
 
 Related: SpaceX tries, tries again -- and successfully launches satellite
 
 The rocket will continue to be relaunched and landed in order to test and improve upon it.
 
 New Shepard had its first successful launch in April 2015 but because of issues with the hydraulic system, it wasn't recovered.
 
 It was launched again in November and January and successfully landed both times. The tests are part of an effort to reuse rockets instead of disposing of them after they've been used to launch space craft. This new approach would greatly lower the cost of space flight.
 
 "Now safely tucked away at our launch site in West Texas is the rarest of beasts -- a used rocket," Bezos said after the first successful landing. "Full reuse is a game changer, and we can't wait to fuel up and fly again."
 
 Saturday's event was unique in that Blue Origin announced the test beforehand -- usually they're revealed after they've been completed.
 
 The launch and landing were captured by drone cameras, according to tweets from Bezos. The founder of Amazon (AMZN, Tech30) tweeted the event and noted that the landing was "perfect."
 

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #146 on: 06-04-2016, 09:55:33 »
Jebemu, gore piše "gauda" umesto "gazda". Prokleti prsti, zašto ne kucate ono što hoću a ne ono što vam kažem!!!!!!!!!!!!!!!!!!!!!!



Dobro, druga tema: svi znamo da nema ništa lepše od slane hrane ali onda posle pritisak oće dubije. U Japanu razvijaju viljušku koja simulura slanoću time što vam pošalje blagi elektrošok u jezik. Nadam se da ne simulira ljutinu time što se ugreje na 3500 stepeni Kelvina ili ugođaj jedenja škampa tako što vas u odsudnim trenucima krvnički ubode u desni...


New electric fork simulates a salty flavor by shocking your tongue


Quote
Dousing every meal in salt might make food tastier, but all that extra sodium is eventually going to raise your blood pressure—giving you bigger problems than bland food. So researchers in Japan have built a prototype electric fork that uses electrical stimulation to simulate the taste of salt.
Designed and engineered using the research on electric flavoring at the University of Tokyo’s Rekimoto Lab, the battery-powered fork features a conductive handle that completes a circuit when the tines make contact with a diner’s tongue, electrically stimulating their taste buds.
The prototype fork, which was built from just $18 worth of electronics, creates the sensation of both salty and sour, and has adjustable levels of stimulation, given that everyone has unique taste buds. When pushed too far, though, the fork can produce an unpleasant metallic taste in the mouth. So if it’s ever commercialized, there will need to be an initial calibration procedure to ensure a pleasant and tasty dining experience, without going so far as to cause physical discomfort.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #147 on: 11-04-2016, 08:13:33 »
Metal Foam Armor Disintegrates Bullets



Quote
Bad news for bullets this week: Researchers at North Carolina State University have developed a super strong armor material that literally turns bullets to dust upon impact.
In a rather dramatic video recently posted online, an armor-piercing bullet is shown essentially disintegrating as it impacts the armor. Check it out:




http://youtu.be/lWmFu-_54fI




The armor plating shown in the video is made in part from composite metal foams, or CMFs, which are both lighter and stronger than traditional metal plating used in body and vehicle armor.
Jacket Acts Like Adventure Armor
Afsaneh Rabiei, professor of mechanical and aerospace engineering at N.C. State, has spent several years developing CMFs and investigating their unique properties.
The bullet used in the demonstration video is a 7.62 x 63 millimeter M2 armor-piercing projectile, and was fired using standard testing procedures established by the Department of Justice for evaluating armor types.
Body Armor Based On Snake, Fish And Butterfly Scales
The armor — only an inch thick — features a ceramic strike face, Kevlar backing, and CMFs in the energy-absorbing middle layer.
“We could stop the bullet at a total thickness of less than an inch, while the indentation on the back was less than 8 millimeters,” Rabiei writes in press materials issued with the video.
Apart from body and vehicle armor, the CMF plating has potential applications for space travel or even transporting nuclear waste, according to the research team. Earlier testing has demonstrated that CMFs can withstand extremely high temperatures and effectively block x-ray, gamma ray and neutron radiation.
That’s some serious armor.
via Phys.org

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #148 on: 16-04-2016, 07:14:29 »
O ovome sam već čitao u, hm, Svetu Kompjutera (?) ali evo sad konkretnije, zašto je pravljenje čipa čija aritmetika nije sasvim tačna dobro za kompjutere:
 
 
Why a Chip That’s Bad at Math Can Help Computers Tackle Harder Problems
 
 
 
Quote

  Your math teacher lied to you. Sometimes getting your sums wrong is a good thing.
  So says Joseph Bates, cofounder and CEO of Singular Computing, a company whose computer chips are hardwired to be incapable of performing mathematical calculations correctly. Ask it to add 1 and 1 and you will get answers like 2.01 or 1.98.
The Pentagon research agency DARPA funded the creation of Singular’s chip because that fuzziness can be an asset when it comes to some of the hardest problems for computers, such as making sense of video or other messy real-world data. “Just because the hardware is sucky doesn’t mean the software’s result has to be,” says Bates.
A chip that can’t guarantee that every calculation is perfect can still get good results on many problems but needs fewer circuits and burns less energy, he says.
Bates has worked with Sandia National Lab, Carnegie Mellon University, the Office of Naval Research, and MIT on tests that used simulations to show how the S1 chip’s inexact operations might make certain tricky computing tasks more efficient. Problems with data that comes with built-in noise from the real world, or where some approximation is needed, are the best fits. Bates reports promising results for applications such as high-resolution radar imaging, extracting 3-D information from stereo photos, and deep learning, a technique that has delivered a recent burst of progress in artificial intelligence. Your math teacher lied to you. Sometimes getting your sums wrong is a good thing.
So says Joseph Bates, cofounder and CEO of Singular Computing, a company whose computer chips are hardwired to be incapable of performing mathematical calculations correctly. Ask it to add 1 and 1 and you will get answers like 2.01 or 1.98.
The Pentagon research agency DARPA funded the creation of Singular’s chip because that fuzziness can be an asset when it comes to some of the hardest problems for computers, such as making sense of video or other messy real-world data. “Just because the hardware is sucky doesn’t mean the software’s result has to be,” says Bates.
A chip that can’t guarantee that every calculation is perfect can still get good results on many problems but needs fewer circuits and burns less energy, he says.
Bates has worked with Sandia National Lab, Carnegie Mellon University, the Office of Naval Research, and MIT on tests that used simulations to show how the S1 chip’s inexact operations might make certain tricky computing tasks more efficient. Problems with data that comes with built-in noise from the real world, or where some approximation is needed, are the best fits. Bates reports promising results for applications such as high-resolution radar imaging, extracting 3-D information from stereo photos, and deep learning, a technique that has delivered a recent burst of progress in artificial intelligence.
In a simulated test using software that tracks objects such as cars in video, Singular’s approach was  capable of processing frames almost 100 times faster than a conventional processor restricted to doing correct math—while using less than 2 percent as much power.
Bates is not the first to pursue the idea of using hand-wavy hardware to crunch data more efficiently, a notion known as approximate computing (see “10 Breakthrough Technologies 2008: Probabilistic Chips”). But DARPA’s investment in his chip could give the fuzzy math dream its biggest tryout yet.
Bates is building a batch of error-prone computers that each combine 16 of his chips with a single conventional processor. DARPA will get five such machines sometime this summer and plans to put them online for government and academic researchers to play with. The hope is that they can prove the technology’s potential and lure interest from the chip industry.
DARPA funded Singular’s chip as part of a program called Upside, which is aimed at inventing new, more efficient ways to process video footage. Military drones can collect vast quantities of video, but it can’t always be downloaded during flight, and the computer power needed to process it in the air would be too bulky.
It will take notable feats of software and even cultural engineering for imprecise hardware to take off. It’s not easy for programmers used to the idea that chips are always super-precise to adapt to ones that aren’t, says Christian Enz, a professor at the Swiss Federal Institute of Technology in Lausanne who has built his own approximate computing chips. New tools will be needed to help them do that, he says.
But Deb Roy, a professor at the MIT Media Lab and Twitter’s chief media scientist, says that recent trends in computing suggest approximate computing may find a readier audience than ever. “There’s a natural resonance if you are processing any kind of data that is noisy by nature,” he says. That’s become more and more common as programmers look to extract information from photos and video or have machines make sense of the world and human behavior, he adds.

mac

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Re: Tehnicka dostignuca....
« Reply #149 on: 22-04-2016, 11:22:45 »
Čudesni/"nemogući" EmDrive, o kojem je ovde već bilo reči u više navrata, je možda dobio teorijsku potporu.

https://www.technologyreview.com/s/601299/the-curious-link-between-the-fly-by-anomaly-and-the-impossible-emdrive-thruster/

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #150 on: 23-04-2016, 06:44:51 »
Interesantno i - neočekivano - za mene prilično razumljivo objašnjenje.  :lol:  Naravno, nikada nisam čuo za Unruh zračenje pa je ovo sve za mene i dalje egzotično ali makar mogu da shvatim teorijekse osnove ovakvog obrazloženja. Emejzing.


Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #152 on: 15-09-2016, 08:31:43 »
MIT Invented a Camera That Can Read Closed Books



Quote
In a breakthrough that will appeal to both spies and those who work with priceless but frail historical documents, researchers at MIT have developed a camera that uses terahertz radiation to peer at the text on pages of a book, without it having to be open.
Terahertz radiation falls somewhere between the microwave and infrared spectrums, and the research team, including Barmak Heshmat, Ramesh Raskar, and Albert Redo Sanchez from MIT, and Justin Romberg and Alireza Aghasi from Georgia Tech, chose that particular flavor of radiation because of how it reacts with different chemicals. Different chemicals produce a distinct frequency as they react with different terahertz frequencies, which can be measured and distinguished. In this instance, it allows the researchers to tell the different between ink and blank paper.


Complex algorithms and software is required to translate the frequencies being bounced back to the camera, allowing it to distinguish letters on a page. But it also relies on how far the short bursts of terahertz radiation are traveling, by precisely timing how long it takes to reach the 20-micrometer-thick air gaps between pages of a book, it’s able to calculate when it moves from page to page.


In its current form the terahertz camera can accurately calculate distance to a depth of about 20 pages, but it can only distinguish characters on a page to a depth of about nine pages. The device also requires the paper used to have some degree of transparency. However, as the detectors and emitters used are further refined, the researchers feel their system could be a fantastic tool for museums or other facilities who want to explore and catalog historical documents, without actually having to touch or open them, and risk damage.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #153 on: 08-11-2016, 05:44:07 »
Čudesni/"nemogući" EmDrive, o kojem je ovde već bilo reči u više navrata, je možda dobio teorijsku potporu.

https://www.technologyreview.com/s/601299/the-curious-link-between-the-fly-by-anomaly-and-the-impossible-emdrive-thruster/

 
EmDrive: Leaked Nasa paper reveals 'Star Trek' microwave thruster does work 
 

Ko ne voli da čita, ima i video...
 
 
 


scallop

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Re: Tehnicka dostignuca....
« Reply #155 on: 07-12-2016, 09:42:09 »
Nisam siguran da se ovde razgovaralo o obnovljivim izvorima energije. Svejedno. Na drugom mestu se pričalo o istoj temi i mislim da je zaključeno da energije ima i da nije problem pokupiti je, ali da su problem skladišenje i distribucija. Dokle god prikupljenu energiju možemo sačuvati samo u akumulatorima i baterijama, kad je ima čas posla se preliva. Isto kao i potok, ako ne potrošiš vodu, ispariće ili se uliti u neko more. Sa distribucijom je još gore. Lako je dovesti struju u kuću, ali je odvesti iz kuće baš i nije. Nemaš priključak preko kojeg će višak otići u jedinstveni sistem kao što i dolazi. Ili komšijama ako želiš da budeš pažljiv. Da budem jasan, sinoć sam saznao da u SAD ne možeš ni džabe da daš struju ako je imaš u višku. Moraš da platiš!
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

lilit

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Re: Tehnicka dostignuca....
« Reply #156 on: 05-01-2017, 03:00:03 »
od danas svi naši televizori izgledaju prepotopski...

http://m.ign.com/articles/2017/01/04/ces-2017-lgs-new-tv-is-less-than-3mm-thick
That’s how it is with people. Nobody cares how it works as long as it works.

zakk

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Re: Tehnicka dostignuca....
« Reply #157 on: 05-01-2017, 14:49:24 »
lepota :D
Why shouldn't things be largely absurd, futile, and transitory? They are so, and we are so, and they and we go very well together.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #158 on: 02-02-2017, 09:46:46 »
Zbogom bifokalne naočari, dobardan elektronske:


Electronic glasses auto-focus on what you're looking at



Quote
    They're not very pretty, but prototype eyeglasses from University of Utah scientists could make progressive lenses obsolete for older people. Using electronically activated lenses and infrared distance meters, they can focus automatically on whatever you're looking at, whether it's far or close up. Once perfected, the device could eliminate the need for multiple pairs of reading or driving glasses for folks with presbyopia or farsightedness.
     Age-related far- or nearsightedness happens when the lenses in your eyes can no longer change focus between objects. As a result, many people between their 40s and 50s have to wear progressive-lens eyeglasses divided into small focal zones depending on object distance. One company called Deep Optics has pursued an auto-focusing solution using see-through liquid-crystal lenses, but is still working on a practical prototype. Google is also working on an auto-focus contact lens with startup Novartis, but recently said that it wouldn't be testing them anytime soon.


To make the lenses adjustable, the University of Utah team placed glycerine -- a thick, clear liquid -- within membranes on the front and back. The chunky frame, meanwhile, holds electronics, a battery and an infrared distance meter. When you look at something, the meter gauges the distance and sends a signal to a mechanical actuator on the rear membrane. Within 14 milliseconds, it switches focus from one object to another, giving you clear vision without the need to look up or down.
Users can upload their prescriptions to the glasses by pairing them with a smartphone over Bluetooth. That means that, in theory, you could keep the same pair of glasses forever, even if your eyesight changes. You'd need to recharge them like a smartphone, but that could be less of a hassle than packing multiple pairs around. "Most people who get reading glasses have to put them on and take them off all the time," says research lead Carlos Mastrangelo. "You put these on, and it's always clear."
The current prototype, which first debuted at CES 2017, is obviously something nobody would want to wear in public. The goal now, then, is to make the whole package smaller and lighter via some serious miniaturization. The team has created a startup company to commercialize the smart glasses and, hopefully, get them on the market in as little as three years.

lilit

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Re: Tehnicka dostignuca....
« Reply #159 on: 02-02-2017, 12:47:40 »
kukala sam za ovakvim cvikama pre nekoliko dana, kad sam milioniti put morala da skinem naočare da pročitam nešto na telefonu.
nadajmo se da će se stvarno uskoro pojaviti u prodaji.
That’s how it is with people. Nobody cares how it works as long as it works.

mac

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Re: Tehnicka dostignuca....
« Reply #160 on: 02-02-2017, 12:57:49 »
Ovo je mehaničko rešenje, jer ima pokretne delove. Iskustvo nam govori da što proizvod ima više pokretnih delova to je verovatnije da će se pokvariti. Uostalom vodeni kreveti više nisu popularni. Treba smisliti neko (elektronsko) rešenje koje nema pokretne delove, koje će pritom verovatno biti i manje kabasto i lakše za držanje na nosu.

Labudan

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Re: Tehnicka dostignuca....
« Reply #161 on: 02-02-2017, 13:32:17 »
Zar nema u tu austriju lasersko ispravljanje dioptrije!

Bež bre, ne bi ja ovo elektrosokoćalo nosio
šta će mi bogatstvo i svecka slava sva kada mora umreti lepa Nirdala

lilit

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Re: Tehnicka dostignuca....
« Reply #162 on: 02-02-2017, 14:55:08 »
Zar nema u tu austriju lasersko ispravljanje dioptrije!

ima. za one koji su ludi da zbog toga idu pod nož.  :lol:
That’s how it is with people. Nobody cares how it works as long as it works.

Labudan

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Re: Tehnicka dostignuca....
« Reply #163 on: 02-02-2017, 15:05:40 »
Kakav nož, nema tu noža, za 24h si ko nov

U mojoj familiji troje to odradilo...
šta će mi bogatstvo i svecka slava sva kada mora umreti lepa Nirdala

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #164 on: 31-07-2017, 05:43:10 »
Tekst je pisan nepodnošljivo reklamerskim tonom, ali možda je ovo ipak vredno da se obrati pažnja:
 
 100x faster, 10x cheaper: 3D metal printing is about to go mainstream


Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #166 on: 20-09-2017, 07:52:57 »
The iPhone X proves the Unabomber was right



Malko tabloidan naslov, svakako. Ali makar je kolumnisti srce na pravom mestu.  :lol:

mac

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Re: Tehnicka dostignuca....
« Reply #167 on: 20-09-2017, 10:18:24 »
Ovo je u stvari reklama za taj iPhone X, pošto se novotarije iz novog iPhonea ne spominju u tekstu u negativnom kontekstu, niti ikako.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #168 on: 04-10-2017, 14:28:33 »
Eh, nije kao da ovo ne znamo, ali zgodno je kad ga neko razloži na detalje....

6 Shocking Ways Your Phone Is Destroying The Planet





Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #171 on: 27-10-2017, 08:06:30 »
Meni ovo zvuči kao užasno rešenje za problem koji zapravo niko nije stvarno imao, ali siguran sam da Lilita već razmišlja o priključivanju programu.

U suštini, Amazonu sad možete da platite 250 dolara da njihovi kuriri dobiju pristup vašoj kući kako bi mogli da pakete uruče i dok niste tu umesto da ih ostave u, šta ja znam, malo većem poštanskom sandučetu koje ste pripremil baš za ovakve situacije.

Potrebno je da imate smart lock tehnologiju, da isključite alarm na dan kad očekujete isporuku i, naravno, da verujete Amazonu da nekakvi hakeri neće uspeti da se probiju u njihovu bazu sa podacima koji omogućuju kuririma da uđu u kuće klijenata koji su uključeni u ovaj program. Visoka cena, ali, naravno, znanje da će vas najnoviji televizor/ lutka na naduvavanje/ stilska stona lampa koje ste naručili sa Amazona čekati u dnevnoj sobi i da se Amazonov kurir divio vašem ukusu za uređenje enterijera su svakako vredni te cene...

Amazon Key Puts Deliveries—and Delivery People—in Your Home

lilit

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Re: Tehnicka dostignuca....
« Reply #172 on: 27-10-2017, 08:49:07 »
Meni ovo zvuči kao užasno rešenje za problem koji zapravo niko nije stvarno imao, ali siguran sam da Lilita već razmišlja o priključivanju programu.

sve dok budem imala veliko RFID poštansko sanduče u zgradi + poštu na 5 minuta peške od stana, teško da ću razmišljati o mogućnosti da mi tom hardy poštar dobije pristup stanu. napokon sam shvatila čega sve ima out there, poštanske institucije su zakon.  nas-rofl
šalu na stranu, ovo je negde ok rešenje za ameriku i kanadu, kad živiš u suburbijama i daleko od civilizacije.
That’s how it is with people. Nobody cares how it works as long as it works.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #173 on: 27-10-2017, 08:56:27 »
Da, i deluje da je osmišljeno za takve envajronmente. Ipak, čini mi se kao da bi logičnije bezbednije i elegantnije rešenje bilo veliko poštansko sanduče. Mislim, pa ne naručuje se televizor i frižider (i statua tiranosaurusa reksa u skoro prirodnoj veličini) baš toliko često da ti je ovako nešto neophodno...

lilit

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Re: Tehnicka dostignuca....
« Reply #174 on: 27-10-2017, 09:03:37 »
ko zna šta ljudi i koliko naručuju. plus, u usa i kanadi je sve veće nego kod nas.  nas-rofl
malo karikiram, al ako šampon koji kupujem ima 250 ml, u usa takav isti ne možeš da nađeš ispod 500-1000 ml. etc.

kao mrzitelj ljudi uživo, kao i shoppinga, meni su neka amazon rešenja savršena.
znaš već za amazon pantry: https://www.amazon.de/s/ref=nb_sb_noss_2?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&url=search-alias%3Daps&field-keywords=pantry
idealno.
That’s how it is with people. Nobody cares how it works as long as it works.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #175 on: 27-10-2017, 09:12:28 »
Ja sam poslednju knjigu sa Amazona naručio nešto pre nove godine (ne zato što imam neki problem sa tim, nego sam u međuvremenu kupovao digitalne knjige) i iz nekog razloga, zvoni mi telefon negde trećeg-četvrtog Januara i kaže mi čovek da je UPS kurir i da mi je doneo knjigu. Koji bre UPS, pitam ja, pa nisam platio kurirsku dostavu već običnu, pravoslavnu poštu. A on kaže, ko zna gospodine, možda vas je Amazon častio za novu godinu  :lol: :lol: :lol: :lol: Nepredvidivi su putevi Džefovi.

scallop

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Re: Tehnicka dostignuca....
« Reply #176 on: 27-10-2017, 10:02:57 »
Tlapnja. Amazon hoće da donese, ali nikad ne znaš pred koja vrata će da ga ostave. Moji u Tulsi drže P.O. box u pošti koja je daleko oko tri milje, pa sednu u kola i odu po pošiljku.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

lilit

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Re: Tehnicka dostignuca....
« Reply #177 on: 27-10-2017, 14:22:19 »
Ja sam poslednju knjigu sa Amazona naručio nešto pre nove godine (ne zato što imam neki problem sa tim, nego sam u međuvremenu kupovao digitalne knjige) i iz nekog razloga, zvoni mi telefon negde trećeg-četvrtog Januara i kaže mi čovek da je UPS kurir i da mi je doneo knjigu. Koji bre UPS, pitam ja, pa nisam platio kurirsku dostavu već običnu, pravoslavnu poštu. A on kaže, ko zna gospodine, možda vas je Amazon častio za novu godinu  :lol: :lol: :lol: :lol: Nepredvidivi su putevi Džefovi.


ma amazon nudi servise koji su tu da ti maksimalno olakšaju život, prajm je tek mnogo zgodan, navikne se čovek na rok isporuke od dan-dva. knjige idu za dan.

naravno, za frikove postoji i:
-alexa, play some jazz and please order 5 packs of amstel beer from prime. now. :oops: :lol:
That’s how it is with people. Nobody cares how it works as long as it works.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #178 on: 27-10-2017, 14:32:59 »
Velika je to kocka, mislim, šta ako Aleksa pod "play some jazz" podrazumeva i Vintona Marsalisa pa onečisti svetinju dnevne sobe? Neke stvari ipak ne treba prepuštati robotima.

scallop

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Re: Tehnicka dostignuca....
« Reply #179 on: 27-10-2017, 14:44:14 »
Alexa je kod mojih svedena na nekoga kome Bela može da naređuje. Ostali su batalili.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

lilit

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Re: Tehnicka dostignuca....
« Reply #180 on: 27-10-2017, 14:47:33 »
Velika je to kocka, mislim, šta ako Aleksa pod "play some jazz" podrazumeva i Vintona Marsalisa pa onečisti svetinju dnevne sobe? Neke stvari ipak ne treba prepuštati robotima.


vinton je u januaru u vijenici, btw, čisto ko info ako se odlučiš za daleki put. :lol:
ma definitivno smo se rodili prerano, jbg, premda nije da od Ponga nismo daleko dogurali. :)
That’s how it is with people. Nobody cares how it works as long as it works.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #181 on: 27-10-2017, 15:19:45 »
Dogurali, dogurali. Roboti služe pivo i puštaju džez. Još samo taj prokleti leteći automobil čekamo...

scallop

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Re: Tehnicka dostignuca....
« Reply #182 on: 27-10-2017, 15:24:02 »
Nije problem leteći automobil, problem je što ne umemo da regulišemo ni kopneni saobraćaj.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #183 on: 27-10-2017, 15:26:27 »
O tome sam razmišljao neki dan pred spavanje. Leteći automobil bi morao da ima neverovatno precizne kontrole, da uzleće i sleće vertikalno, da ima veoma napredne sisteme za pregled itd. itd. itd. što ga sve čini nepraktičnim i ne-verovatnim izumom, pogotovo sada kad nam se smeše autonomna drumska vozila.

scallop

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Re: Tehnicka dostignuca....
« Reply #184 on: 27-10-2017, 15:51:03 »
Setiš se vizije Lika Besona i Petog elementa i odma' ti jasno. Jednostavno, nismo zreli za to. Tehnologija jeste, ali mi nismo.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #185 on: 08-11-2017, 08:54:07 »
Meni ovo zvuči kao užasno rešenje za problem koji zapravo niko nije stvarno imao, ali siguran sam da Lilita već razmišlja o priključivanju programu.

sve dok budem imala veliko RFID poštansko sanduče u zgradi + poštu na 5 minuta peške od stana, teško da ću razmišljati o mogućnosti da mi tom hardy poštar dobije pristup stanu. napokon sam shvatila čega sve ima out there, poštanske institucije su zakon.  nas-rofl
šalu na stranu, ovo je negde ok rešenje za ameriku i kanadu, kad živiš u suburbijama i daleko od civilizacije.

I evo šta kaže anketa koju je radio recode:


 Most Amazon Prime subscribers say they don’t want to buy the Amazon Key that lets delivery people into their homes

lilit

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Re: Tehnicka dostignuca....
« Reply #186 on: 08-11-2017, 17:04:20 »
taman ono što smo predvideli!  xrofl
5% je fajn cifra, svi ti ljudi po dalekim suburbijama plus oni kojima stanovi više služe kao baza za rad a manje kao dom, ljudi na radu na dalekom severu i slično (esam psiholog amater, ubilo se  nas-rofl ).

btw, Airbnb koji se pominje u tekstu mi je unpalatable i dalje, a tako će i da ostane. hotel možda jeste skuplji, al složićemo se da depersonalizovanost sobe nema cenu. :lol:
That’s how it is with people. Nobody cares how it works as long as it works.

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #187 on: 08-11-2017, 18:32:03 »
Naravno, airbnb je ne samo kao da si seo na wc šolju koja je još topla od prethodnog korisnika nego i još imaš osećaj da je dirao sav toalet papir svojim masnim prstima a onda ga vratio na rolnu  :P

lilit

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Re: Tehnicka dostignuca....
« Reply #188 on: 08-11-2017, 19:29:30 »
... vratio na rolnu pa još s pogrešne strane! brrrrrrrr.

https://www.inc.com/geoffrey-james/the-correct-way-to-hang-toilet-paper-according-to-.html

 :lol:
That’s how it is with people. Nobody cares how it works as long as it works.

Scordisk

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Re: Tehnicka dostignuca....
« Reply #189 on: 08-11-2017, 20:27:54 »
fora kod arbnba je da se nađe domaćin koji neće živeti u dotičnoj kući, već samo dati ključ :D ni ja ne volim da se muvam po stanovima nepoznatih ljudi, ali ovo mi je dosta dobro došlo, kada se vidimo dva puta, pri dolasku i pri odlasku. a u međuvremenu rolna, naravno, okrenuta OD zida

lilit

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Re: Tehnicka dostignuca....
« Reply #190 on: 08-11-2017, 20:59:07 »
poštujem, scor, poštujem, al airbnb me plaši zbog too much intimizacije (stvari nepoznatih ljudi! lol), što je dobro za mlade ljude, al ne i za nas androidna matora gunđala.    xrofl
That’s how it is with people. Nobody cares how it works as long as it works.




Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #194 on: 14-02-2018, 09:00:13 »

scallop

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Re: Tehnicka dostignuca....
« Reply #195 on: 14-02-2018, 09:45:52 »
Još jedan genijalan način za rovašenje po prirodi. Posle ćemo da cedimo kiseonik iz čelika.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.



Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #198 on: 20-06-2018, 08:09:04 »

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #199 on: 07-09-2018, 10:06:15 »

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #200 on: 03-01-2019, 08:55:19 »


Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #202 on: 26-04-2019, 05:19:25 »
New aircraft rises 'like a balloon'
 
Quote

Researchers from the University of the Highlands and Islands (UHI) have helped create a revolutionary new type of aircraft. 
Phoenix is an unmanned aerial vehicle (UAV) designed to stay in the air indefinitely using a new type of propulsion. 
Despite being 15m (50ft) long with a mass of 120kg (19 stone) she rises gracefully into the air. 
She looks a little like an airship, except airships don't have wings. 
"It's a proper aeroplane," says the UHI's Professor Andrew Rae. 
As the project's chief engineer, he has overseen the integration of Phoenix's systems. 
"It flies under its own propulsion although it has no engines," he says. 
"The central fuselage is filled with helium, which makes it buoyant so it can ascend like a balloon. 
"And inside that there's another bag with compressors on it that brings air from outside, compresses the air, which makes the aeroplane heavier and then it descends like a glider." 
 




Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #206 on: 25-05-2019, 21:49:56 »
Par godina nakon što je svako drugi bio u fazonu "ne loži se, bre, ludače":
 
 Elon Musk Says ‘Hyperloop’ Tunnel Is Now Just a Normal Car Tunnel Because ‘This Is Simple and Just Works’



Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #209 on: 16-07-2019, 05:20:13 »
Srebrni letač više nije samo san...
 
 
https://youtu.be/JvEMQalsHWs

lilit

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Re: Tehnicka dostignuca....
« Reply #210 on: 16-07-2019, 08:14:26 »
Fenomenalno je!
Mislila sam da smo origins ispratili na Sagiti, al moguće da sam se prevarila.
Odavde je krenulo: https://youtu.be/RU-ehS4NNEk
That’s how it is with people. Nobody cares how it works as long as it works.



Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #213 on: 25-10-2019, 07:52:36 »
Watch a Real-Life Invisibility Cloak Designed for Military Use

Quote
Earlier in October, Hyperstealth filed a patent for the material, which doesn’t require a power source and is both paper-thin and inexpensive — all traits that could make it appealing for use on the battlefield.
According to a press release, it works by bending the light around a target to make it seemingly disappear. This light can be in the visible spectrum, or it can be ultraviolet, infrared, or shortwave infrared light, making the material what Hyperstealth calls a “broadband invisibility cloak.”

Truman

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There is neither creation nor destruction, neither destiny nor free will, neither path nor achievement. This is the final truth.
Sri Ramana

mac

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    • http://www.facebook.com/mihajlo.cvetanovic


lilit

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Re: Tehnicka dostignuca....
« Reply #217 on: 26-03-2020, 12:00:46 »
Bosch razvalio. Wow!

Combating the coronavirus pandemic: Bosch develops rapid test for COVID-19

https://www.bosch.com/stories/vivalytic-rapid-test-for-covid-19/
That’s how it is with people. Nobody cares how it works as long as it works.

mac

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Re: Tehnicka dostignuca....
« Reply #218 on: 29-08-2020, 14:39:04 »

tomat

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Re: Tehnicka dostignuca....
« Reply #219 on: 29-08-2020, 14:49:41 »
Ovo mi malo liči na onaj mim koji kaže da su naučnici izbrisali memoriju pužu.

Naučnici: sećaš li se nečega?

Puž:

Naučnici: jebote, uspeli smo!
Arguing on the internet is like running in the Special Olympics: even if you win, you're still retarded.



lilit

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Re: Tehnicka dostignuca....
« Reply #222 on: 22-11-2020, 10:32:51 »
That’s how it is with people. Nobody cares how it works as long as it works.

scallop

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Re: Tehnicka dostignuca....
« Reply #223 on: 01-12-2020, 12:38:41 »
Jutros sam protestvovao protiv projekta koji će zagaditi Makiš, glavno vodoizvorište u Beogradu. Nisam znao gde da stavim napisano, ali dobro će mu biti i ovde.




MAKIŠ

Ovih dana nam predstoji javna rasprava o budućnosti najvažnijeg vodoizvorišta u Beogradu. Ne bi vredelo da lično podnesem bilo kakav predlog ili primedbu, modaliteti javnih rasprava su organizovani tako da ništa ne može promeniti. Umesto toga, ispričaću vam kako je Makiš dospeo u moj fokus negde osamdesetih prošlog veka.

Ništa nisam znao o Makišu kad nam je u Vojnotehnički Institut dospeo čudan zahtev. Naime, oni koji su bili zaduženi za vodoizvorište tragali su za isporučiocem velikih količina aktivnog uglja za zamenu dotadašnjeg sloja za filtriranje vode koju su crpeli iz dubina ispor tog polja. Tada je bio u modi aktivni ugalj od ljuski kokosovog oraha, a mislim da je i danas, pa su se između ostalih obratili i jednoj holandskoj firmi.

Kakve to veze ima? E, pa, holandska firma je bila ljubazna i odgovorila da nama ne treba taj ugalj, jer imamo bolji aktivni ugalj od šljivovih koštica! Gde? U firmi "Miloje Zakić" u Kruševcu. Makiš se obratio "Miloju Zakiću", a ovi pravac kod nas. To je već bio i obaveštajni problem, odnosno, kako oni znaju da smo u fazi uspešne prototipske proizvodnje.

Posle malo panike pokušali smo da stignemo tamo gde smo već zakasnili. Angažovali smo našu najveću firmu za otkup šljiva, oni su potvrdili da po Srbiji šljivove koštice uglavnom spaljuju i lože kao gorivo i da ćemo kao trošak imati samo prikupljanje i transport. Aili, jadac. Čim su saznali da koštice imaju vrednost dobile su i cenu i hoćeš nećeš kupovina aktivnog uglja od kokosovih ljuski je postala rentabilnija.

Možda će neko prepoznati još jednu od mojih fantastičnih priča o znanju koje smo imali, pa bacili na otpad, vapaj za državom koja je u svemu bila bolja od otpadaka u kojima živimo. Ali, to je jedina istina, sve ostalo je uzaludno pravdanje. Moj protest umesto besmislene primedbe za raspravu o uništenju Makiša.
Never argue with stupid people, they will drag you down to their level and then beat you with experience. - Mark Twain.


mac

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mac

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Re: Tehnicka dostignuca....
« Reply #227 on: 18-05-2021, 01:24:38 »

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #228 on: 18-05-2021, 04:58:48 »
Evo kako će stvarno funkcionisati injektabilni čipovi:
 
 Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes

mac

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Re: Tehnicka dostignuca....
« Reply #229 on: 11-11-2021, 05:25:22 »


Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #231 on: 17-04-2022, 06:05:22 »
  A new heat engine with no moving parts is as efficient as a steam turbine  
 
Quote

Engineers at MIT and the National Renewable Energy Laboratory (NREL) have designed a heat engine with no moving parts. Their new demonstrations show that it converts heat to electricity with over 40 percent efficiency — a performance better than that of traditional steam turbines.
 

mac

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Re: Tehnicka dostignuca....
« Reply #232 on: 23-04-2022, 09:58:34 »
Jedan čovek, Thomas Midgley Jr. je odgovoran za olovo u benzinu i freon u frižideru. Veritasium ima novi video o njemu.

The Man Who Accidentally Killed The Most People In History

Za nas ovde najinteresantnija je mapa sveta pri kraju videa na kojoj se vidi da Srbija među poslednjim državama koje su zabranile olovo, zajedno sa Alžirom, Irakom, Jemenom, i Afganistanom (i Bosnom i Crnom Gorom).



mac

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Re: Tehnicka dostignuca....
« Reply #235 on: 28-10-2022, 12:16:43 »
Precizni kombajni troše manje hemikalija kod zaprašivanja.

Sniper robot treats 500k plants per hour with 95% less chemicals

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #236 on: 16-11-2022, 05:36:26 »
They made a material that doesn't exist on Earth. That's only the start of the story. 
 
Quote

The compound is called tetrataenite, and the fact that scientists have found a way to make it in a lab is a huge deal. If synthetic tetrataenite works in industrial applications, it could make green energy technologies significantly cheaper. It could also roil the market in rare earths, currently dominated by China, and create a seismic shift in the industrial balance between China and the West.
 


mac

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Re: Tehnicka dostignuca....
« Reply #238 on: 01-03-2023, 20:45:24 »
Kada tehnologija radi to je onda pesma, ali kada ne radi treba vam Hasan Minaž da to lakše podnesete.

Hasan Minhaj Tries to Convince Marques Brownlee That Modern Tech Sucks

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #239 on: 11-03-2023, 06:11:43 »



Mica Milovanovic

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Re: Tehnicka dostignuca....
« Reply #242 on: 30-03-2023, 13:07:15 »
Kasniš dve godine, jer čitaš samo stranu propagandu i ne hodaš Beogradom...
Mica

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #243 on: 30-03-2023, 13:25:19 »
Video sam ja to, ali se nikada nisam dovoljno zainteresovao da proučim, a sada mi naleteo ovaj tekst i eto...

mac

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Re: Tehnicka dostignuca....
« Reply #244 on: 06-07-2023, 14:57:09 »
U Las Vegasu je proradila MSG Sfera, sferična zgrada prečnika 150 metara, koja je istovremeno i LED ekran. Priznajem da izgleda magično. Koštala je 2 milijarde dolara.

https://youtu.be/wKCY1Ph7T0k

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #245 on: 28-07-2023, 04:49:28 »
Ovaj rad nije još recenziran a, što je važnije, videćemo i može li iko drugi da ponovi eksperiment, but, you know, HUGE IF REAL:
 
 
 The First Room-Temperature Ambient-Pressure Superconductor

mac

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Re: Tehnicka dostignuca....
« Reply #246 on: 28-07-2023, 15:59:20 »

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #247 on: 28-07-2023, 19:57:18 »
Ma naravno, zato sam se i ogradio. Nekoliko superprovodničkih radova je nedavno povučeno jer su se pokazali kao puni fatalnih grešaka, pa sad čekamo da vidimo šta će biti s ovim...

tomat

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Re: Tehnicka dostignuca....
« Reply #248 on: 28-07-2023, 22:21:23 »
For the first time in the world, we succeeded in... je solidan red flag.
Arguing on the internet is like running in the Special Olympics: even if you win, you're still retarded.


Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #250 on: 05-08-2023, 13:46:33 »
Ovaj rad nije još recenziran a, što je važnije, videćemo i može li iko drugi da ponovi eksperiment, but, you know, HUGE IF REAL:
 
 
 The First Room-Temperature Ambient-Pressure Superconductor


Replikabinost za sada ne sjajna:


https://www.nature.com/articles/d41586-023-02481-0

Meho Krljic

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Re: Tehnicka dostignuca....
« Reply #251 on: 19-08-2023, 05:41:24 »
Kraj priče o "superprovodniku" iz prethodnog posta?
 
 
 LK-99 isn’t a superconductor — how science sleuths solved the mystery