Did 'Dark Matter' Create the First Stars?
Physics /
Mar 15, 2006 |
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Dark matter may have played a major role in creating stars at the very beginnings of the universe. If that is the case, however, the dark matter must consist of particles called "sterile neutrinos". Peter Biermann ...
Scientists to develop bacteria-powered fuel cells
Mar 15, 2006 |
4.1 / 5 (47) |
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A diverse team of microbiologists, engineers and geochemists from the University of Southern California and Rice University are joining forces to create bacteria-powered fuel cells that could power spy drones that fit in ...
Astronomers, at last, get a chance to size up a brown dwarf
Mar 15, 2006 |
4.2 / 5 (15) |
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Brown dwarfs -- failed stars that fall somewhere between the smallest stars and the largest planets on the spectrum of heavenly objects -- have always been viewed by astronomers as a critical link in the understanding ...
Molecule by molecule, new assay shows real-time gene activity
Mar 15, 2006 |
4.4 / 5 (7) |
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Chemists at Harvard University have developed the first technique providing a real-time, molecule-by-molecule "movie" of protein production in live cells. Their direct observation of fluorescently tagged molecules in single ...
The Web: Wagering on 'March Madness'
Mar 15, 2006 |
5 / 5 (1) |
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This spring, the annual ritual of the NCAA basketball tournament -- colloquially known as "March Madness" -- begins once again. Online, a similar, high-stakes rite commences once more too: gambling by fans ...
Magnetic nanoparticles boost green chemistry
Mar 15, 2006 |
4.3 / 5 (32) |
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Using the unique properties of new nanometer-scale magnetic particles, researchers have for the first time separated for reuse two different catalysts from a multi-step chemical reaction done in a single vessel.
Microsoft looks to StepUI
Mar 15, 2006 |
3.4 / 5 (9) |
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In the midst of this year's recent TechFest, an internal event where Microsoft demonstrated over 150 internal projects currently in development, the world's largest software company proved it could take a step in a new direction. ...
Researchers grow bone cells on carbon nanotubes
Mar 15, 2006 |
4.3 / 5 (16) |
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Researchers at the University of California, Riverside have published findings that show, for the first time, that bone cells can grow and proliferate on a scaffold of carbon nanotubes.
Electrons 'in limbo' seen for first time
Physics /
Mar 15, 2006 |
4.7 / 5 (13) |
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Hrvoje Petek, University of Pittsburgh professor of physics and codirector of Pitt's Gertrude E. and John M. Petersen Institute of NanoScience and Engineering (PINSE), has published two papers in recent weeks that literally ...
Rare Chinese frogs communicate by means of ultrasonic sound
Mar 15, 2006 |
4.1 / 5 (11) |
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First came word that a rare frog (Amolops tormotus) in China sings like a bird, then that the species produces very high-pitch ultrasonic sounds. Now scientists say that these concave-eared torrent frogs also ...
Tomato vaccines: New bird flu weapon?
Mar 15, 2006 |
4.7 / 5 (16) |
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Australian scientist Amanda Walmsley says she is trying to grow a bird flu vaccine in tomatoes to be used to prevent the disease in chickens.
'Yanking' Chemical Bonds with Molecular Wires Speeds Reactions
Physics /
Mar 15, 2006 |
4.5 / 5 (2) |
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Using a chain of molecules as an infinitesimal lanyard to tug on a chemical bond about to break, Duke University chemists have found they can speed a complex chemical reaction.
SpaceX Plans Reusable Seven Person Capsule
Mar 15, 2006 |
4.7 / 5 (9) |
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SpaceX said it plans to develop a reusable capsule that could carry a crew of up to seven into low Earth orbit, making it a competitor to assume some of the tasks of NASA's space shuttle fleet after it is retired.
New security toolbar rates e-mail senders
Mar 15, 2006 |
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Internet users have a new ally in the uncertain world of e-mail, as security vendor CipherTrust this week unveiled a toolbar for e-mail clients that lets users know how trustworthy the mail they're receiving is.
The cosmic dance of distant galaxies
Mar 15, 2006 |
4.4 / 5 (11) |
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Studying several tens of distant galaxies, an international team of astronomers found that galaxies had the same amount of dark matter relative to stars 6 billion years ago as they have now. If confirmed, this ...
