News tagged with hot
Hot Electrons Could Double Solar Cell Power Efficiency
Dec 18, 2009 |
4.2 / 5 (13) |
2
Scientists have experimentally verified a theory suggesting that hot electrons could double the output of solar cells. The researchers, from Boston College, have built solar cells that successfully use hot ...
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Researcher Uses Graphene Quilts to Keep Things Cool
Nanotechnology / Nanomaterials
Dec 21, 2009 |
4.6 / 5 (10) |
1
(PhysOrg.com) -- University of California, Riverside Professor of Electrical Engineering and Chair of Materials Science and Engineering Alexander Balandin is leading several projects to explore ways to use ...
Giant Planet Set for a Cataclysmic Show
Dec 16, 2009 |
4.9 / 5 (16) |
4
(PhysOrg.com) -- A team of Chinese astronomers have discovered a giant planet close to the exotic binary star system QS Virginis. Although dormant now, in the future the two stars will one day erupt in a violent ...
YouTube leads Google charge in display ad market
Dec 15, 2009 |
not rated yet |
0
Google on Tuesday outlined a strategy for seizing a bigger share of online display advertising that has long been a key stronghold for rival Yahoo!
Astronomers Find Super-Earth Using Amateur, Off-the-Shelf Technology (w/ Video)
Dec 16, 2009 |
4.9 / 5 (24) |
10
(PhysOrg.com) -- Astronomers announced today that they have discovered a "super-Earth" orbiting a red dwarf star 40 light-years from Earth. They found the distant planet with a small fleet of ground-based ...
Astronomers discover 'tilted planets'
56 minutes ago |
5 / 5 (2) |
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(PhysOrg.com) -- University of Exeter, UK, research has added to a growing evidence that several giant planets have orbits so tilted that their orbits can be perpendicular or even backwards relative to their ...
Climate scientists underwhelmed by Copenhagen Accord
Dec 20, 2009 |
3.2 / 5 (12) |
9
Top climate scientists said Saturday that the eleventh-hour political deal hammered out at UN talks in Copenhagen falls perilously short of what is needed to stave off catastrophic global warming.
A New Method of Estimating Stellar Distances
Dec 21, 2009 |
4.4 / 5 (14) |
2
(PhysOrg.com) -- The star Chi Cygni is located about 550 light-years away, in the direction of the constellation of Cygnus the Swan. It is a notable star because, unlike the sun which still burns hydrogen ...
A unique geography -- and soot and dust -- conspire against Himalayan glaciers
Space & Earth / Earth Sciences
Dec 15, 2009 |
4 / 5 (2) |
1
"So many disparate elements, both natural and man-made, converge in the Himalayas," said William Lau, a climatologist from NASA's Goddard Space Flight Center in Greenbelt, Md. "There's no other place in the ...
Sleep and Cancer: Uncomfortable Bedfellows
Dec 15, 2009 |
4.5 / 5 (2) |
0
(PhysOrg.com) -- Newly-diagnosed cancer patients face a number of life-long challenges, but a new study from the Duke Clinical Research Institute suggests that a lack of sleep may be one of the most persistent and disruptive. ...
Philippine volcano gets louder, could erupt soon
Space & Earth / Earth Sciences
Dec 21, 2009 |
5 / 5 (5) |
0
(AP) -- Philippine troops on Monday pressed the last 3,000 villagers who have refused to heed government warnings to leave the danger zone around a volcano that experts say is ready to erupt.
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