Microswimmer propels itself with near-zero friction
Jun 04, 2007 |
4.5 / 5 (47) |
0
Scientists have found that a very slender micro-sized swimmer can propel itself without friction by surface treadmilling. The microswimmer moves by generating backward surface motion at the front end of itself, which is then ...
A sound way to turn heat into electricity
Jun 04, 2007 |
4.7 / 5 (129) |
0
University of Utah physicists developed small devices that turn heat into sound and then into electricity. The technology holds promise for changing waste heat into electricity, harnessing solar energy and ...
Aluminum foil lamps outshine incandescent lights
Jun 04, 2007 |
4.7 / 5 (75) |
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Researchers at the University of Illinois are developing panels of microcavity plasma lamps that may soon brighten people’s lives. The thin, lightweight panels could be used for residential and commercial lighting, and for ...
Health concerns urge Wi-Fi removal
Jun 04, 2007 |
2.6 / 5 (52) |
0
After a warning from a government watchdog group, schools and families in Britain are scrambling to remove Wi-Fi systems.
Scientists present new results from Huygens probe
Space & Earth / Space Exploration
Jun 04, 2007 |
4.6 / 5 (42) |
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Today, two and a half years after the historic landing of ESA’s Huygens probe on Titan, a new set of results on Saturn’s largest moon is ready to be presented. Titan, as seen through the eyes of Huygens still ...
For spider-strength silk go back to basics
Jun 04, 2007 |
4.3 / 5 (26) |
0
If you want to spin silk like a spider then you need to rethink your starting material, Oxford University scientists have discovered.
An apple peel a day might keep cancer at bay
Jun 04, 2007 |
4.4 / 5 (39) |
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An apple a day keeps the doctor away? Or, what appears to be more accurate: An apple peel a day might help keep cancer at bay, according to a new Cornell study.
Modeling the restless brain
Jun 04, 2007 |
4.5 / 5 (13) |
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Indiana University neuroscientists Olaf Sporns and Christopher Honey find the 98 percent of brain activity that other researchers consider just background noise to be fascinating and important.
The Loneliest Black Holes in the Universe
Jun 04, 2007 |
4.2 / 5 (17) |
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Actively growing supermassive black holes in centers of galaxies are common even in cosmic voids, the most rarefied and empty regions of the universe.
People Think They Reap What They Sow
Medicine & Health / Psychology & Psychiatry
Jun 04, 2007 |
3.9 / 5 (27) |
0
People gauge how responsive their partners are primarily by how they themselves respond to their partners—not the other way around, according to a series of Yale studies in the Journal of Personality and Social Psychology.
What Did Dinosaurs Hear?
Biology /
Jun 04, 2007 |
3.8 / 5 (13) |
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What did dinosaurs hear? Probably a lot of low frequency sounds, like the heavy footsteps of another dinosaur, if University of Maryland professor Robert Dooling and his colleagues are right. What they likely couldn't hear ...
NASA Spacecraft Ready for Science-Rich Encounter With Venus
Space & Earth / Space Exploration
Jun 04, 2007 |
4.7 / 5 (6) |
0
NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft will make its closest pass to Venus on Tuesday, June 5. This will place the spacecraft on target for a flyby of Mercury ...
When atoms collide
Jun 04, 2007 |
3.9 / 5 (9) |
0
Scientists at the UK’s National Physical Laboratory (NPL) have proposed a new way to determine accurate time faster.
Study of staph shows how bacteria evolve resistance
Biology /
Jun 04, 2007 |
4.5 / 5 (10) |
0
Antibacterial resistance doesn’t happen overnight. But until recently nobody knew exactly how long it took — or how it happened at all. Now, by studying blood taken from a single patient over a period of months, Rockefeller ...
Marine sediment microbial fuel cells get a nutritional boost
Jun 04, 2007 |
3.3 / 5 (3) |
0
Discarded crab and lobster shells may be the key to prolonging the life of microbial fuel cells that power sensors beneath the sea, according to a team of Penn State researchers.
