Alternative theory of gravity explains large structure formation -- without dark matter
Dec 14, 2006 |
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In the standard theory of gravity—general relativity—dark matter plays a vital role, explaining many observations that the standard theory cannot explain by itself. But for 70 years, cosmologists have never ...
The Dark Side of Light
Feb 19, 2008 |
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Light may not seem very interesting in our everyday lives. But to scientists, light’s properties are a constant source of intrigue. The nature of light as both wave and particle, light as the universal speed ...
Researchers Look Beyond the Birth of the Universe
May 12, 2006 |
4.6 / 5 (186) |
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According to Einstein’s general theory of relativity, the Big Bang represents The Beginning, the grand event at which not only matter but space-time itself was born. While classical theories offer no clues ...
'It might be life Jim...', physicists discover inorganic dust with life-like qualities
Aug 09, 2007 |
4.7 / 5 (182) |
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Could extraterrestrial life be made of corkscrew-shaped particles of interstellar dust? Intriguing new evidence of life-like structures that form from inorganic substances in space are revealed today in the New Journal of ...
Ultra-Dense Optical Storage -- on One Photon
Jan 19, 2007 |
4.6 / 5 (186) |
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Researchers at the University of Rochester have made an optics breakthrough that allows them to encode an entire image's worth of data into a photon, slow the image down for storage, and then retrieve the image ...
No Big Bang? Endless Universe Made Possible by New Model
Jan 30, 2007 |
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A new cosmological model demonstrates the universe can endlessly expand and contract, providing a rival to Big Bang theories and solving a thorny modern physics problem, according to University of North Carolina at Chapel ...
Scientists interpret physics behind invisibility cloaks
Aug 22, 2007 |
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Is a perfect invisible cloak theoretically possible? Are there certain wavelengths—such as those in the visible spectrum—that can’t be made invisible? How will using imperfect materials affect the performance ...
Radical 'Ballistic Computing' Chip Bounces Electrons Around Like Billiards
Aug 16, 2006 |
4 / 5 (208) |
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Computer designers at the University of Rochester are going ballistic. "Everyone has been trying to make better transistors by modifying current designs, but what we really need is the next paradigm," says ...
Quantum telecloning: Captain Kirk's clone and the eavesdropper
Physics /
Feb 16, 2006 |
4.4 / 5 (190) |
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Imagine Captain Kirk being beamed back to the Starship Enterprise and two versions of the Star Trek hero arriving in the spacecraft's transporter room. It happened 40 years ago in an episode of the TV science fiction classic, ...
Electron filmed for first time ever
Feb 22, 2008 |
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Now it is possible to see a movie of an electron. The movie shows how an electron rides on a light wave after just having been pulled away from an atom. This is the first time an electron has ever been filmed, ...
Researchers Create New Form of Matter
May 17, 2007 |
4.6 / 5 (178) |
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Physicists at the University of Pittsburgh have demonstrated a new form of matter that melds the characteristics of lasers with those of the world's best electrical conductors - superconductors.
Physicists Unite Light And Matter (Update)
Feb 07, 2007 |
4.7 / 5 (170) |
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Physicists have for the first time stopped and extinguished a light pulse in one part of space and then revived it in a completely separate location. They accomplished this feat by completely converting the ...
'Mach c'? Scientists observe sound traveling faster than the speed of light
Jan 17, 2007 |
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For the first time, scientists have experimentally demonstrated that sound pulses can travel at velocities faster than the speed of light, c. William Robertson’s team from Middle Tennessee State University ...
New material means 'x-ray specs' no longer required
Physics /
Feb 20, 2006 |
4.6 / 5 (166) |
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A new optical effect has been created in a London laboratory that means solid objects such as walls could one day be rendered transparent, scientists report today in the journal Nature Materials.
Are We in the Peak of an Oil Bubble?
Jul 07, 2008 |
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Since 2003, worldwide oil prices have quadrupled. According to a new study, the price of oil is rising at a faster-than-exponential rate, and cannot be sustained. In other words, we’re in the midst of an oil ...
