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Meho Krljic:
Ali, uskoro: benzin iz vazduha!!!!!!!!!! Naravno, za sada skup u smislu energije koju valja uložiti i sve to, ali opet, to je obnovljiv izvor itd. itd.
Exclusive: Pioneering scientists turn fresh air into petrol in massive boost in fight against energy crisis

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A small British company has produced the first "petrol from air" using a revolutionary technology that promises to solve the energy crisis as well as helping to curb global warming by removing carbon dioxide from the atmosphere. Air Fuel Synthesis in Stockton-on-Tees has produced five litres of petrol since August when it switched on a small refinery that manufactures gasoline from carbon dioxide and water vapour.
The company hopes that within two years it will build a larger, commercial-scale plant capable of producing a ton of petrol a day. It also plans to produce green aviation fuel to make airline travel more carbon-neutral.
Tim Fox, head of energy and the environment at the Institution of Mechanical Engineers in London, said: "It sounds too good to be true, but it is true. They are doing it and I've been up there myself and seen it. The innovation is that they have made it happen as a process. It's a small pilot plant capturing air and extracting CO2 from it based on well known principles. It uses well-known and well-established components but what is exciting is that they have put the whole thing together and shown that it can work."
Although the process is still in the early developmental stages and needs to take electricity from the national grid to work, the company believes it will eventually be possible to use power from renewable sources such as wind farms or tidal barrages.
"We've taken carbon dioxide from air and hydrogen from water and turned these elements into petrol," said Peter Harrison, the company's chief executive, who revealed the breakthrough at a conference at the Institution of Mechanical Engineers in London.
"There's nobody else doing it in this country or indeed overseas as far as we know. It looks and smells like petrol but it's a much cleaner and clearer product than petrol derived from fossil oil," Mr Harrison told The Independent.
"We don't have any of the additives and nasty bits found in conventional petrol, and yet our fuel can be used in existing engines," he said.
"It means that people could go on to a garage forecourt and put our product into their car without having to install batteries or adapt the vehicle for fuel cells or having hydrogen tanks fitted. It means that the existing infrastructure for transport can be used," Mr Harrison said.
Being able to capture carbon dioxide from the air, and effectively remove the principal industrial greenhouse gas resulting from the burning of fossil fuels such as oil and coal, has been the holy grail of the emerging green economy.
Using the extracted carbon dioxide to make petrol that can be stored, transported and used as fuel for existing engines takes the idea one step further. It could transform the environmental and economic landscape of Britain, Mr Harrison explained.
"We are converting renewable electricity into a more versatile, useable and storable form of energy, namely liquid transport fuels. We think that by the end of 2014, provided we can get the funding going, we can be producing petrol using renewable energy and doing it on a commercial basis," he said.
"We ought to be aiming for a refinery-scale operation within the next 15 years. The issue is making sure the UK is in a good place to be able to set up and establish all the manufacturing processes that this technology requires. You have the potential to change the economics of a country if you can make your own fuel," he said.
The initial plan is to produce petrol that can be blended with conventional fuel, which would suit the high-performance fuels needed in motor sports. The technology is also ideal for remote communities that have abundant sources of renewable electricity, such solar energy, wind turbines or wave energy, but little in the way of storing it, Mr Harrison said.
"We're talking to a number of island communities around the world and other niche markets to help solve their energy problems.
"You're in a market place where the only way is up for the price of fossil oil and at some point there will be a crossover where our fuel becomes cheaper," he said.
Although the prototype system is designed to extract carbon dioxide from the air, this part of the process is still too inefficient to allow a commercial-scale operation.
The company can and has used carbon dioxide extracted from air to make petrol, but it is also using industrial sources of carbon dioxide until it is able to improve the performance of "carbon capture".
Other companies are working on ways of improving the technology of carbon capture, which is considered far too costly to be commercially viable as it costs up to £400 for capturing one ton of carbon dioxide.
However, Professor Klaus Lackner of Columbia University in New York said that the high costs of any new technology always fall dramatically.
"I bought my first CD in the 1980s and it cost $20 but now you can make one for less than 10 cents. The cost of a light bulb has fallen 7,000-fold during the past century," Professor Lackner said.
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Meho Krljic:
A takođe:
Society of Automotive Engineers announces electric car charging plug standard

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The electric and plug-in hybrid car industry is learning the lesson of the mobile phone makers. Instead of allowing a plethora of incompatible charging plugs to sprout up, the Society of Automotive Engineers (SAE) International hopes to forestall confusion by settling on one charging plug design for North America. SAE has selected the J1772 combo plug as the standard, which uses paired couplers to allow for both AC and DC charging using the same plug.
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  Published this week, the SAE International decision marks the first official charging standard for North American cars. According to SAE, it was the result of consultation with 190 “global experts” from the automotive, charging equipment, utilities industries and national laboratories.
  The J1772 has two charging plugs incorporated into a single design and is said to reduce charging times from as long as eight hours to as little as 20 minutes. It’s based on the 2009 J1772, which had only an AC charging plug. The current version includes a DC plug underneath the AC plug, which means that not only are both options available, but cars with the older J1772 couplings, such as the 2012 Nissan Leaf and 2013 Chevrolet Volt, can still use the new plug.
The dual capability is because AC and DC each have their strengths and weaknesses. AC is easier to access, since it’s mains current and the car's on-board system can rectify it into DC to charge the battery. The problem is that beyond a certain point AC has heating problems for the car, so charging is inherently slow. DC is much faster – theoretically limitless, but it requires an external charging station. The choice of currents means that car makers don’t need to choose between plentiful but slow, and fast but scarce.
   The J1772 combo plug pushed out its rival, the pictured CHAdeMO plug (Photo: C-CarTom)  The new standard also sets charging levels and safety features for the plug – those features include its ability to be safely used in all weather conditions, and the fact that its connections are never live unless commanded by the car during charging.
J1772 beat out its main rival, the Japanese CHAdeMO plug (which is also available as an option for the Nissan Leaf and is used in over a thousand chargers installed in Japan), along with Tesla’s proprietary Supercharger system. Whether the SAE standard will see an end to these rival plugs or the beginning of an automotive version of VHS versus Betamax remains to be seen.
Source: SAE International

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Meho Krljic:
Universe, human brain and Internet have similar structures 

--- Quote ---The structure of the universe and the laws that govern its growth may be more similar than previously thought to the structure and growth of the human brain and other complex networks, such as the Internet or a social network of trust relationships between people, according to a new study.
“By no means do we claim that the universe is a global brain or a computer,” said Dmitri Krioukov, co-author of the paper, published by the Cooperative Association for Internet Data Analysis (CAIDA), based at the San Diego Supercomputer Center (SDSC) at the University of California, San Diego.
“But the discovered equivalence between the growth of the universe and complex networks strongly suggests that unexpectedly similar laws govern the dynamics of these very different complex systems,” Krioukov noted
Having the ability to predict – let alone trying to control – the dynamics of complex networks remains a central challenge throughout network science. Structural and dynamical similarities among different real networks suggest that some universal laws might be in action, although the nature and common origin of such laws remain elusive
By performing complex supercomputer simulations of the universe and using a variety of other calculations, researchers have now proven that the causal network representing the large-scale structure of space and time in our accelerating universe is a graph that shows remarkable similarity to many complex networks such as the Internet, social, or even biological networks
“These findings have key implications for both network science and cosmology,” said Krioukov.
“We discovered that the large-scale growth dynamics of complex networks and causal networks are asymptotically (at large times) the same, explaining the structural similarity between these networks,” the researcher asserted
SDSC Director Michael Norman added, “This is a perfect example of interdisciplinary research combining math, physics, and computer science in totally unexpected ways.”
“Who would have guessed that the emergence of our universe’s four-dimensional spacetime from the quantum vacuum would have anything to do with the growth of the Internet? Causality is at the heart of both, so perhaps the similarity Krioukov and his collaborators found is to be expected.
Of course the network representing the structure of the universe is astronomically huge – in fact it can be infinite. But even if it is finite, researchers’ best guess is that it is no smaller than 10250 atoms of space and time. (That’s the digit 1 followed by 250 zeros.) For comparison, the number of water molecules in all the oceans in the world has been estimated to be 4.4 x 1046
Yet the researchers found a way to downscale this humongous network while preserving its vital properties, by proving mathematically that these properties do not depend on the network size in a certain range of parameters, such as the curvature and age of our universe
After the downscaling, the research team turned to Trestles, one of SDSC’s data-intensive supercomputers, to perform simulations of the universe’s growing causal network. By parallelizing and optimizing the application, Robert Sinkovits, a computational scientist with SDSC, was able to complete in just over one day a computation that was originally projected to require three to four years
“In addition to being able to complete these simulations much faster than previously ever imagined, the results perfectly matched the theoretical predictions of the researchers,” said Sinkovits
“The most frequent question that people may ask is whether the discovered asymptotic equivalence between complex networks and the universe could be a coincidence. Of course it could be, but the probability of such a coincidence is extremely low. Coincidences in physics are extremely rare, and almost never happen. There is always an explanation, which may be not immediately obvious,” said Krioukov.
“Such an explanation could one day lead to a discovery of common fundamental laws whose two different consequences or limiting regimes are the laws of gravity (Einstein’s equations in general relativity) describing the dynamics of the universe, and some yet-unknown equations describing the dynamics of complex networks,” added Marian Boguna, a member of the research team from the Departament de Física Fonamental at the Universitat de Barcelona, Spain.

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Meho Krljic:
 Human body could power smartphones, pacemakers and other devices 

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Imagine a world with no wall chargers. People power might just make that world a reality.
That's because our own bodies just might be the sustainable energy sources of the near future, generating electricity from our own body heat, physical movement and vibrations.
Roger Highfield of the Science Museum Group writes that scientists are already at work on a number of such devices, with the first wave of human-powered generators hitting the market in the next two years.
The applications would range from personal health to entertainment. For example, pacemaker batteries must be replaced every few years. But a pacemaker running off a piezoelectric current could provide a permanent energy source, reducing the need for risky and expensive operations.
The word piezoelectricity means to generate energy from pressure and can be derived from a number of sources, including ceramics, crystals and even biological material, such as DNA and bone.
Researchers have spent years attempting to derive energy from nontraditional sources. For example, the East Japan Railway Company has experimented with using train gates to generate electricity as commuters pass through them.
And researchers at MIT have been working on creating a "crowd farm" that would generate electricity from human movement in public spaces.
University of Wisconsin-Madison associate professor Tom Krupenkin told Highfield that placing a salty liquid within the soles of shoes could generate enough electricity to power many of the devices used by millions of consumers around the world.
"This is more than sufficient to power such common devices as smartphones and tablets," he said. "We expect the first product prototype to be available in one to two years."
However, don't start planning to charge your Kindle with an after-dinner walk around the block just yet. Laurie Winkless of the U.K.'s National Physical Laboratory says that piezoelectric devices could prove to be more trouble than they are worth, unless used properly. For example, "thermoelectric" clothing may be able to draw energy from the body but could leave the wearer feeling uncomfortably cold. And those saltwater shoe batteries may prove to be painful for people walking long-distances.
Still, even skeptics like Winkless see a promising future around the corner for these alternative energy generators.
"Energy harvesting pots could mean that boiling your pasta charges your mobile phone," she said. "The vibrations of your washing machine could power wireless sensors—or your TV remote could be powered just by you pressing the buttons."

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Meho Krljic:
Izgleda da su svi oni koji su tvrdili da nas video igre pripremaju za ratovanje bili u pravu:
  What’s it like to pilot a drone? A lot like 'Call of Duty' 

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Teenagers raised on "Call of Duty" and "Halo" might relish flying a massive Predator drone -- a surprisingly similar activity.
Pilots of unmanned military aircraft use a joystick to swoop down into the battlefield, spot enemy troop movements, and snap photos of terror suspects, explained John Hamby, a former military commander who led surveillance missions during the Iraq War.
“You’re always maneuvering the airplane to get a closer look,” Hamby told “You’re constantly searching for the bad guys and targets of interest. When you do find something that is actionable, you’re a hero.”
Yet a new study at the Massachusetts Institute of Technology (MIT) found real-life drone operators can become easily bored. Only one participant paid attention during an entire test session, while even top performers spent a third of the time checking a cellphone or catching up on the latest novel.       That’s a problem, said Mary Cummings, an associate professor of aeronautics and astronautics at MIT. Not being cognizant of the battlefield means drone operators could miss important mission objectives.
Fortunately, there’s an answer: making the actual drone mission even more like a video game.
“When there was a lot going on, people did very well,” she told “When there was nothing going on they did much worse. When it’s boring most of the time, most do not pay attention.”
Cummings -- who goes by the name Missy -- is a former F-18 pilot herself, and was surprised by the results of the drone study, which was sponsored by the U.S. Navy. She pointed out that the FAA insists all aircraft personnel doing monitor and surveillance work should be in a sterile environment, without any distractions. Yet, drone reconnaissance mission can last up to 24 hours, and a sterile environment could be making things worse.
She says those who had more to do during the study performed better. Interestingly, she also found operators who had more experience playing video games did worse -- they could not deal with the boredom as easily, particularly during long missions.
And a drone pilot clearly has to pay attention. There are long periods when an operator might not see anything, and those types of missions could become dull. “Someone has to watch that camera or you won’t catch the bad guys before they catch us,” Hamby told
Cummings says the secret could be to make drone missions work more like a video game. That’s the opposite of the trend in the automotive industry, where distracted driving can lead to more frequent accidents and higher fatalities.
“We need to rethink this, because some level of distraction actually helps,” she said. The lessons about providing more to do when flying a drone can also translate to other fields, she said. For example, those in charge of nuclear safety at power plants might be better off not staring at a bland screen all day. Even those in the medical field could benefit from having objectives akin to a video game.
Hamby said the younger generation of video gamers is well-suited for real military combat. In fact, the controller for some surveillance drones is modeled after a video game controller. He also says many of the objectives look and function the same. The real military use a touchscreen notebook to control drones; you can land one by touching an airstrip, and the drones essentially fly on their own.
Travis Getz, a spokesperson for Tom Clancy Games and the company’s liaison with the U.S. military, said games like “Ghost Recon: Future Soldier” are not designed to simulate real drone missions. But they do have the same ambiance as a theater of war: finding the enemy, relaying strategic initiatives.
“The result of interacting with drones for gamers and trained military operators is the same – they get more ways to view and interact with an area or situation from multiple angles or with vision enhancements like thermal or infrared,” he told The benefit might not be more busy work for an operator, but would increase the thoroughness of the surveillance and the results.
For now, the MIT findings are too new for any immediate action – there are no plans to start porting the military’s drone control screens to the Nintendo Wii. But Cummings says we know more about how to make sure people are paying attention, and not just visiting the snack room.   
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