In quantum channels, zero plus zero can equal non-zero

Physics / Physics

created Oct 06, 2008 | popularity 4.6 / 5 after 62 votes | comments 11

(PhysOrg.com) -- Physicists have discovered a strange characteristic of quantum communication channels. If two quantum channels each have a transmission capacity of zero, they may still have a nonzero capacity ...


Fuzziness on the road to physics' grand unification theory

Physics / Physics

created Oct 06, 2008 | popularity 3.6 / 5 after 64 votes | comments 8

Leave it to hypothesized gravity to weigh down what physicists have thought for 30 years. If theoretical physicists, led by the University of Oregon's Stephen Hsu, are right, the idea that nature's forces ...


Occasional memory loss tied to lower brain volume

Medicine & Health / Other

created Oct 06, 2008 | popularity 3.6 / 5 after 29 votes | comments 4

People who occasionally forget an appointment or a friend's name may have a loss of brain volume, even though they don't have memory deficits on regular tests of memory or dementia, according to a study published in the October ...


New material could speed development of hydrogen powered vehicles

Nanotechnology / Materials

created Oct 06, 2008 | popularity 4.1 / 5 after 54 votes | comments 21

Researchers in Greece report design of a new material that almost meets the U.S. Department of Energy (DOE) 2010 goals for hydrogen storage and could help eliminate a key roadblock to practical hydrogen-powered ...


Visualizing election polls

Technology / Computer Sciences

created Oct 06, 2008 | popularity 4.1 / 5 after 7 votes | comments no comments yet

Do you want to know the percentage of white women who support vice presidential candidate Sarah Palin? What about college-educated versus high school-educated white women? Or those who also hunt?


Using a fan during sleep lowers SIDS risk by 72 percent

Medicine & Health / Other

created Oct 06, 2008 | popularity 4.6 / 5 after 28 votes | comments 5

Infants who slept in a bedroom with a fan ventilating the air had a 72 percent lower risk of Sudden Infant Death Syndrome compared to infants who slept in a bedroom without a fan, according to a new study by the Kaiser Permanente ...


Landmark discovery of 'engine' that drives cell movement

General Science / Biology

created Oct 06, 2008 | popularity 4.7 / 5 after 7 votes | comments no comments yet

This research by Thomas Leung, Ph.D., and his team in the GSK-IMCB Group at the Institute of Molecular and Cell Biology (IMCB), under Singapore's Agency for Science, Technology and Research, is fundamental to the understanding ...


CERN openlab boosts the performance of LHC computing

Technology / Computer Sciences

created Oct 06, 2008 | popularity 4 / 5 after 4 votes | comments 3

The LHC Grid Fest, held last Friday at CERN in Geneva, Switzerland, and at several sites around the world, commemorated the readiness of the Worldwide LHC Computing Grid (WLCG). At full capacity, the Large Hadron Collider ...


Playing Pinball with Atoms

Nanotechnology / Physics

created Oct 06, 2008 | popularity 4.4 / 5 after 20 votes | comments no comments yet

With nanotechnology yielding a burgeoning menagerie of microscopic pumps, motors, and other machines for potential use in medicine and industry, here is one good question: How will humans turn those devices ...


Hitachi unveils ultra-fast search of recordings

Technology / Hi Tech

created Oct 06, 2008 | popularity 4.8 / 5 after 8 votes | comments no comments yet

Japan's Hitachi Ltd. said Monday it has developed technology that makes it possible to find a single word in 2,000 hours of recorded material through a search of just three seconds.




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