Archive: 02/18/2005
Why is the helix such a popular shape?
Perhaps because they are nature's space savers Something about nature loves a helix, the ubiquitous spiral shape taken on by DNA and many other molecules found in the cells of living creatures. The shape is so useful th ...
Feb 18, 2005 |
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RHESSI satellite captures giant gamma-ray flare
Astronomers around the world recorded late last year the brightest explosion ever of high-energy X-rays and gamma rays - a split-second flash from the other side of our galaxy that was strong enough to affect ...
Feb 18, 2005 |
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VLA Probes Secrets of Mysterious Magnetar
A giant flash of energy from a supermagnetic neutron star thousands of light-years from Earth may shed a whole new light on scientists' understanding of such mysterious "magnetars" and of gamma-ray bursts. ...
Feb 18, 2005 |
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Titan's Atmosphere Comes from Ammonia, Huygens Data Say
Cassini-Huygens supplied new evidence about why Titan has an atmosphere, making it unique among all solar system moons, a University of Arizona planetary scientist says. Scientists can infer from Cassini-Huygens res ...
Feb 18, 2005 |
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NYU's Dvali says change in laws of gravity, not 'dark energy,' source of cosmic acceleration
New York University physicist Georgi Dvali concludes that the cosmic acceleration of the universe may be caused by the modification of standard laws of gravity at very large distances, and not by "dark energy," as posited ...
Feb 18, 2005 |
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NASA Statement on False Claim of Evidence of Life on Mars
A pair of NASA scientists told a group of space officials at a private meeting here Sunday that they have found strong evidence that life may exist today on Mars, hidden away in caves and sustained by pockets of water. The ...
Feb 18, 2005 |
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Web searching made more successful with automated, personalized assistance system
A Penn State researcher has developed software that improves Web searching with a personalized system that offers automated assistance for structuring and refining queries, evaluating search results and finding more relevant ...
Feb 18, 2005 |
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Diamonds key to a sparkling listening experience
Music lovers could be in for the ultimate listening experience, thanks to a new range of speakers containing parts made of diamond, writes Marina Murphy in the Chemistry & Industry magazine. The unique properties of diamond ...
Feb 18, 2005 |
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First System-on-Glass Driver LSI Chip to Achieve 768 Outputs for XGA TFT-LCDs
Corporation announced the development of a panel-sized scan driver, the world's first system-on-glass (SOG), large-scale integrated (LSI) chip to achieve 768 outputs for extended graphics array, thin-film transistor, liquid ...
Feb 18, 2005 |
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Penn astrophysicist outlines a multi-pronged approach in the hunt for dark energy
For the last few years evidence that we are living on a very "weird" universe has been growing: the expansion of the universe is accelerating, and one theory proposed to account for this acceleration is what has been termed ...
Physics /
Feb 18, 2005 |
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World’s first USB to SATA bridge chip
Supporting the rapid transition to serial ATA storage, the OXU921S from Oxford Semiconductor is the world’s first bridge chip to provide transparent data transfer between a USB2.0 port and an external SATA disk drive.
Feb 18, 2005 |
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Revolutionary Grassroots Astrophysics Project "Einstein@Home" Goes Live
A new grassroots computing project dubbed Einstein@Home, which will let anyone with a personal computer contribute to cutting edge astrophysics research, will be officially announced at the annual meeting of the American ...
Physics /
Feb 18, 2005 |
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Scientists mount ambitious experiments, propose dramatic new theories about dark energy
A panel of physicists and astronomers will preview emerging theories and experiments aimed at solving the mystery of dark energy, an invisible force that dominates the universe, from 1:45 to 4:45 p.m. Friday, Feb. 18, at ...
Physics /
Feb 18, 2005 |
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String theorist explores dark energy and our unique 'pocket' of the universe
Some celestial bodies are so cold that methane freezes; others are so hot that nuclear reactions occur. And then there's Earth, with a benign temperature hovering in the narrow range between freezing and boiling, allowing ...
Physics /
Feb 18, 2005 |
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Molecular machine may lead to new drugs to combat human diseases
The crystallized form of a molecular machine that can cut and paste genetic material is revealing possible new paths for treating diseases such as some forms of cancer and opportunistic infections that plague HIV patients. Purdue Uni ...
Feb 18, 2005 |
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