Physicists hope to tie light beams in knots
Sep 12, 2008 |
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Usually, light beams shine in a straight line, with the possible exception of light being bent by gravity. But scientists are now investigating how to make light beams into looped and knotted configurations. ...
Physicists find a new state of matter in a 'transistor'
Oct 21, 2008 |
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McGill University researchers have discovered a new state of matter, a quasi-three- dimensional electron crystal, in a material very much like those used in the fabrication of modern transistors. This discovery could have ...
Scientists revisit 1833 hydrogen production experiment
Nov 07, 2008 |
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(PhysOrg.com) -- In the early 1800s, during the peak of the Industrial Revolution, modern science revolved around steam engines and other coal-powered applications. So it may seem a bit out of place that, ...
Physicists Develop Test for 'String Theory'
Jan 23, 2007 |
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For decades, scientists have taken issue with “string theory”—a theory of the universe which contends that the fundamental forces and matter of nature can be reduced to tiny one-dimensional filaments called strings—because ...
The world's lowest noise laser: Researchers outsmart quantum physics
Jan 25, 2008 |
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Researchers at the Max Planck Institute for Gravitational Physics and Leibniz University of Hanover have produced a laser beam of especially high quality. In doing so, they have achieved a new world record ...
New String-Theory Notion Redefines the Big Bang
Physics /
Mar 31, 2006 |
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String theory — the concept that all particles can be represented as strings or string-loops of incredibly minute length, oscillating at various frequencies — was initially developed to help explain why quarks, the tiny fundamental ...
A Matter of Fact: NASA Finds Direct Proof of Dark Matter
Aug 21, 2006 |
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Dark matter and normal matter have been wrenched apart by the tremendous collision of two large clusters of galaxies. The discovery, using NASA's Chandra X-ray Observatory and other telescopes, gives direct ...
World's Largest Quantum Bell Test Spans Three Swiss Towns
Jun 16, 2008 |
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In an attempt to rule out any kind of communication between entangled particles, physicists from the University of Geneva have sent two entangled photons traveling to different towns located 18 km apart – ...
Physicists find way to 'see' extra dimensions
Feb 02, 2007 |
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Peering backward in time to an instant after the big bang, physicists at the University of Wisconsin-Madison have devised an approach that may help unlock the hidden shapes of alternate dimensions of the universe.
Physicists Seek Answers to Quantum Correlations
Aug 14, 2008 |
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After performing multiple tests on two entangled photons, physicists have yet again found that the photons seem to be communicating faster than the speed of light - at least 100,000 times faster. The researchers ...
Fusion scientist revives magnetic mirror machine with cool new idea
Dec 13, 2006 |
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Since the development of the hydrogen bomb in the ‘50s, scientists have speculated that the power of fusion might serve as a renewable energy resource. Research has revealed the challenges of this goal, and ...
First demonstration of a working invisibility cloak
Oct 19, 2006 |
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A team led by scientists at Duke University's Pratt School of Engineering has demonstrated the first working "invisibility cloak." The cloak deflects microwave beams so they flow around a "hidden" object inside ...
Quantum Computer: Laser tweezers sort atoms
Jul 12, 2006 |
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Physicists of the University of Bonn have taken one more important hurdle on the path to what is known as a quantum computer: by using 'laser tweezers' they have succeeded in sorting up to seven atoms and lining ...
Michigan laser beam believed to set record for intensity
Feb 15, 2008 |
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If you could hold a giant magnifying glass in space and focus all the sunlight shining toward Earth onto one grain of sand, that concentrated ray would approach the intensity of a new laser beam made in a ...
Princeton physicists connect string theory with established physics
May 02, 2007 |
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String theory, simultaneously one of the most promising and controversial ideas in modern physics, may be more capable of helping probe the inner workings of subatomic particles than was previously thought, according to a ...
