(PhysOrg.com) -- Most of the invisibility cloaks that have been demonstrated to date conceal objects at frequencies that are not detectable by the human eye. Designing invisibility cloaks that can conceal objects from visible ...
(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 improve solar ...
Nanophysics
May 5, 2011
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(PhysOrg.com) -- Researchers from Swinburne University and the University of Shanghai for Science and Technology have for the first time ever demonstrated a reversal of the optical ‘Doppler Effect’ – an advance ...
Optics & Photonics
Mar 7, 2011
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Scientists have known for decades that time passes faster at higher elevations—a curious aspect of Einstein's theories of relativity that previously has been measured by comparing clocks on the earth's surface and a high-flying ...
General Physics
Sep 23, 2010
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Tiny chemical sensors implanted into patients could help diagnose disease and track its progress, following a development by scientists.
Bio & Medicine
Mar 28, 2010
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Light is better than radio waves when it comes to some wireless communications, according to Penn State engineers. Optical communications systems could provide faster, more secure communications with wider bandwidth and would ...
Engineering
Jan 27, 2010
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(PhysOrg.com) -- Researchers from Siemens have broken their own record for wirelessly transmitting data over white LED light. They’ve now achieved rates of 500 megabits per second (Mbps), shattering the previous record ...
(PhysOrg.com) -- Researchers at Washington University in St. Louis have developed a polymer-coated gold nanocage that not only opens in response to light to release a small amount of a drug payload, but then closes when the ...
Bio & Medicine
Nov 19, 2009
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(PhysOrg.com) -- Finally, an optical frequency comb that visibly lives up to its name. Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology in the U.S. have built the ...
General Physics
Oct 29, 2009
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More than 120 years after the discovery of the electromagnetic character of radio waves by Heinrich Hertz, wireless data transmission dominates information technology. Higher and higher radio frequencies are applied to transmit ...
Nanophysics
Oct 20, 2009
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