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Quand la lumière devient matière : l'incroyable expérience enfin réalisée ? - 19 mai 2014

Quand la lumière devient matière : l'incroyable expérience enfin réalisée ? - 19 mai 2014

http://www.sciencesetavenir.fr/fondamental/20140519.OBS7685/quand-la-lumiere-devient-matiere.html

Related:  Sciences Technologies FuturSciences quantiques

Mysteries of worm regeneration solved with artificial intelligence The statement that “human-level artificial intelligence is the last invention mankind need ever make” has been much bandied about of late. It implies that once we have invented something as smart as ourselves, it can take over and start making the inventions itself. The concept is most often pronounced by a computer scientists speaking from a podium and resembling nothing so much as a medieval cleric handing down divine scripture from above. Quantum theory reveals puzzling pattern in how people respond to some surveys Researchers used quantum theory – usually invoked to describe the actions of subatomic particles – to identify an unexpected and strange pattern in how people respond to survey questions. By conventional standards, the results are surprising: The scientists found the exact same pattern in 70 nationally representative surveys from Gallup and the Pew Research center taken from 2001 to 2011, as well as in two laboratory experiments. Most of the national surveys included more than 1,000 respondents in the United States. "Human behavior is very sensitive to context. It may be as context sensitive as the actions of some of the particles that quantum physicists study," said Zheng Wang, lead author of the study and associate professor of communication at The Ohio State University. "By using quantum theory, we were able to predict a surprising regularity in human behavior with unusual accuracy for the social sciences in a large set of different surveys."

Blackest is the new black: Scientists develop a material so dark that you can't see it... - Science - News Puritans, Goths, avant-garde artists, hell-raising poets and fashion icon Coco Chanel all saw something special in it. Now black, that most enigmatic of colours, has become even darker and more mysterious. A British company has produced a "strange, alien" material so black that it absorbs all but 0.035 per cent of visual light, setting a new world record. To stare at the "super black" coating made of carbon nanotubes – each 10,000 times thinner than a human hair – is an odd experience. It is so dark that the human eye cannot understand what it is seeing. Shapes and contours are lost, leaving nothing but an apparent abyss.

New Dual Carbon Battery Charges 20x Faster Than Lithium Ion Power Japan Plus has announced an innovative new battery that charges up to twenty times faster and lasts longer than high-end lithium ion batteries. The company boasts that electric vehicles with the ability to drive 300 miles (480 km) on a single charge may soon be a reality. The Ryden dual carbon new battery is cheaper, safer, and 100% recyclable, making it an attractive option that could bring high-performance electric cars to market more quickly. “Power Japan Plus is a materials engineer for a new class of carbon material that balances economics, performance and sustainability in a world of constrained resources,” said Dou Kani, CEO of Power Japan Plus in a press release. “The Ryden dual carbon battery is the energy storage breakthrough needed to bring green technology like electric vehicles to mass market.”

Impossible 3D-Printed Faucets Show The Amazing Possibilities Of Metal Printing By using an older form of 3D printing in a novel way, American Standard, a U.S. faucet manufacturer, has created a collection of seemingly impossible bathroom faucets that are works of art. Selective laser sintering is a form of 3D printing that involves using powerful lasers to heat and fuse metal powder to produce parts or shapes that would be difficult or impossible to create with traditional methods. The process has been around since the 1980s, and 3D printing has been used to design and prototype faucets for ages, but American Standard claims that these are the first ready-for-market faucets produced by printing with metal. These exclusive faucets, however, will not come cheap; “The estimated retail price will be somewhere between $12,000 – $20,000.” The angular geometric faucet is especially interesting. It was created to mimic “the experience of water.

Physicists Create and Control a Large Quantum Mechanical System Built on Photons A new study from Yale University shows that scientists can create and control a large quantum mechanical system built on photons, suggesting that they might be able to expand the role of photons in quantum information systems. Light might be able to play a bigger, more versatile role in the future of quantum computing, according to new research by Yale University scientists. A team of Yale physicists has coaxed an unprecedented number of light particles, or photons, to behave quantum mechanically, or to assume more than one state simultaneously, such as “alive” and “dead.” Dynamic Jupiter If Jupiter’s magnetosphere were in glow mode, it would be the largest structure visible in the night sky. Credit: NASA Aug 29, 2014 Could two dynamos made of hydrogen create Jupiter’s magnetosphere? Jupiter is the largest of all the planets. At 142,984 kilometers in diameter at its equator, it is so large that all the other planets could fit within its volume.

Solar Roads Could Power An Entire Country A small US-based company called Solar Roadways are developing a solar road surface that, if installed nationwide, has the potential to produce more renewable energy than the entire country uses. In fact, they’ve actually already developed a working prototype that’s been installed in a parking lot, and they’re now crowdsourcing funds in order to tweak the design and move towards production. Solar Roadways, which was started by Scott and Julie Brusaw in 2006, designed and developed hexagonal glass solar panels studded with LED lights that could be installed on a variety of surfaces such as roads, pavements and playgrounds. These panels would more than pay for themselves and would benefit both businesses and homeowners as the energy generated from driveways and parking lots could be used to power buildings, and any excess can be sold back to the grid. Snow test: the powered row of panels are free of snow/ice.

Stephen Hawking Warns Humanity: Leave Earth Before the Ruling Class Destroys It AnonHQ January 22nd, 2016 | by hqanon World By Claire Bernish at theantimedia.org United Kingdom — Humanity’s future is in peril thanks to so-called advancements in science and technology, claims Professor Stephen Hawking, who cited “nuclear war, global warming, and genetically-modified viruses” as deadly threats to our existence. Hawking described various “things that could go wrong” to an audience of hundreds attending the first in a series of BBC Reith Lectures, which pertain to research about black holes. He asserted the necessity for colonization of other planets to ensure survival of the human species. L amplituhedron ou la clef pour comprendre ce qui compose l'univers Neat Stuff Ecstasy Drug-Crazed Ravers Are Like Chemical Buddhas Published on April 4th, 2014 | by Jason Louv Ecstasy drug-fueled Dutch ravers are by turns idiotic and profound in this hilarious video This video (via the Dutch magazine Flabber) captures partygoers out of their skulls on Ecstasy at Thunderdome, a hardcore techno / gabber festival that [&hellip... Read More → Environment & Health

Why Physicists Are Saying Consciousness Is A State Of Matter, Like a Solid, A Liquid Or A Gas — The Physics arXiv Blog There’s a quiet revolution underway in theoretical physics. For as long as the discipline has existed, physicists have been reluctant to discuss consciousness, considering it a topic for quacks and charlatans. Indeed, the mere mention of the ‘c’ word could ruin careers. That’s finally beginning to change thanks to a fundamentally new way of thinking about consciousness that is spreading like wildfire through the theoretical physics community. And while the problem of consciousness is far from being solved, it is finally being formulated mathematically as a set of problems that researchers can understand, explore and discuss.

Graphene Defies Thermal Conductivity Law Graphene is a monolayer of carbon atoms arranged in a honeycomb pattern. This arrangement gives it very special properties, including incredible strength and conductivity, while being remarkably lightweight. A group of researchers at the Max Planck Institute for Polymer Research (MPI-P) in connection with the National University of Singapore have demonstrated graphene’s unlimited potential for heat conduction based on the size of the sample, contradicting the law of thermal conduction.

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