News tagged with free
Retroreflector transmits light with negligible power consumption
(Phys.org) -- In free-space optical communications (FSO), data is wirelessly transmitted by light propagating through open space. Among their applications, FSO systems are used for communications between spacecraft ...
Apr 17, 2012 |
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Bright lights, small systems: Molecular differentiation using free-electron lasers
(PhysOrg.com) -- Double-core-hole (DCH) states – in which two electrons are ejected from their positions, creating vacancies – occurring at different atomic sites are very sensitive to the chemical ...
Oct 28, 2011 |
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Invisibility cloak that generates virtual images gets closer to realization
(PhysOrg.com) -- In a twist on the concept of an invisibility cloak, researchers have designed a material that not only makes an object invisible, but also generates one or more virtual images in its place. ...
Apr 02, 2010 |
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Free will is an illusion, biologist says
(PhysOrg.com) -- When biologist Anthony Cashmore claims that the concept of free will is an illusion, he's not breaking any new ground. At least as far back as the ancient Greeks, people have wondered how ...
Mar 03, 2010 |
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Nanobelts support manipulation of light
(PhysOrg.com) -- They look like 2-by-4s, but the materials being created in a Rice University lab are more suited to construction with light.
Oct 14, 2011 |
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Measurement of 'hot' electrons could have solar energy payoff
(PhysOrg.com) -- Basic scientific curiosity paid off in unexpected ways when Rice University researchers investigating the fundamental physics of nanomaterials discovered a new technology that could dramatically ...
May 05, 2011 |
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Theoretical physicists offer explanation of how bacteria might generate radio waves
(PhysOrg.com) -- Four theoretical physicists, led by Allan Widom, of Northeastern University, have published a paper in arXiv, where they show a possible way for some bacteria to produce radio waves. Taking ...
Apr 28, 2011 |
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Safeguarding genome integrity through extraordinary DNA repair
(PhysOrg.com) -- DNA is under constant attack, from internal factors like free radicals and external ones like ionizing radiation. About 10 double-strand breaks – the kind that snap both backbones of ...
Apr 19, 2011 |
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Experimental philosophy opens new avenues into old questions
Philosophers have argued for centuries, millennia actually, about whether our lives are guided by our own free will or are predetermined as the result of a continuous chain of events over which we have no control.
Other Sciences / Social Sciences
Mar 17, 2011 |
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Unpeeling atoms and molecules from the inside out
(PhysOrg.com) -- The first published scientific results from the world's most powerful hard X-ray laser, located at the Department of Energy's SLAC National Accelerator Laboratory, show its unique ability ...
Jun 30, 2010 |
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Quantum teleportation achieved over 16 km
(PhysOrg.com) -- Scientists in China have succeeded in teleporting information between photons further than ever before. They transported quantum information over a free space distance of 16 km (10 miles), ...
May 20, 2010 |
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Forget the telecommute - now you can 'robocommute' (w/ Video)
(PhysOrg.com) -- Anybots, a Silicon Valley start-up company, has developed a telepresence robot called QB, which is a mobile device that can represent you in your next meeting at the office if you are unable ...
May 19, 2010 |
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Smart phones offer users a way to ditch pricey voice plans
Your monthly cell phone bill is way too expensive. No, it's not the fees or taxes or even text messages that are leaching your wallet. It's your voice plan.
Mar 17, 2010 |
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Radio pulses from pulsar appear to move faster than light
(PhysOrg.com) -- Laboratory experiments in the last few decades have shown that some things can appear to move faster than light without contradicting Einstein's special theory of relativity, but now astrophysicists ...
Jan 14, 2010 |
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US rejects proposal to put Internet under UN control
US officials, lawmakers and technology leaders voiced firm opposition Thursday to efforts to bring the Internet under UN control, saying it could hurt free expression and commerce.
6 hours ago |
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