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Ecosystem, vegetation affect intensity of urban heat island effect
Space & Earth / Earth Sciences
Dec 15, 2009 |
5 / 5 (2) |
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NASA researchers studying urban landscapes have found that the intensity of the "heat island" created by a city depends on the ecosystem it replaced and on the regional climate. Urban areas developed in arid and semi-arid ...
Scientists discover mechanism behind superinsulation
Dec 14, 2009 |
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(PhysOrg.com) -- Scientists at the U.S. Department of Energy's Argonne National Laboratory have discovered the microscopic mechanism behind the phenomenon of superinsulation, the ability of certain materials ...
A unique geography -- and soot and dust -- conspire against Himalayan glaciers
Space & Earth / Earth Sciences
Dec 15, 2009 |
4 / 5 (2) |
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"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 ...
Hot Electrons Could Double Solar Cell Power Efficiency
Dec 18, 2009 |
4.3 / 5 (10) |
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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 ...
Tracking new cancer-killing particles with MRI
Nanotechnology / Nanomaterials
Dec 14, 2009 |
5 / 5 (4) |
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Researchers at Rice University and Baylor College of Medicine (BCM) have created a single nanoparticle that can be tracked in real time with MRI as it homes in on cancer cells, tags them with a fluorescent ...
Thermochemical nanolithography now allows multiple chemicals on a chip
Dec 16, 2009 |
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(PhysOrg.com) -- Scientists at Georgia Tech have developed a nanolithographic technique that can produce high-resolution patterns of at least three different chemicals on a single chip at writing speeds of ...
New Study Turns Up the Heat on Soot's Role in Himalayan Warming (w/ Video)
Space & Earth / Earth Sciences
Dec 14, 2009 |
5 / 5 (2) |
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(PhysOrg.com) -- Soot from fire in an unventilated fireplace wafts into a home and settles on the surfaces of floors and furniture. But with a quick fix to the chimney flue and some dusting, it bears no impact ...
Icy moons of Saturn and Jupiter may have conditions needed for life
Dec 15, 2009 |
4.8 / 5 (15) |
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(PhysOrg.com) -- Scientists once thought that life could originate only within a solar system's "habitable zone," where a planet would be neither too hot nor too cold for liquid water to exist on its surface. ...
Global warming could significantly impact US wine and corn production, scientists say
Dec 14, 2009 |
3.6 / 5 (7) |
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When it comes to nature, timing is everything. Spring flowers depend on birds and insects for pollination. But if spring-like weather arrives earlier than usual, and flowers bloom and wither before the pollinators appear, ...
Born in beauty: Proplyds in the Orion Nebula (w/ Video)
Dec 14, 2009 |
4.8 / 5 (9) |
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(PhysOrg.com) -- A collection of 30 never-before-released images of embryonic planetary systems in the Orion Nebula are the highlight of the longest single Hubble Space Telescope project ever dedicated to ...
An Advance in Superconducting Magnet Technology Opens the Door for More Powerful Colliders
Dec 16, 2009 |
4.8 / 5 (11) |
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(PhysOrg.com) -- Preparing for as much as a 10-fold increase in the Large Hadron Collider's luminosity within the next decade, U.S. scientists and engineers have demonstrated a powerful magnet based on an ...
Panasonic Starts Mass-Production of High-Capacity 3.1 Ah Lithium-ion Battery
Dec 18, 2009 |
1 / 5 (1) |
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Panasonic Corporation developed a 18650-type high-capacity 3.1 Ah lithium-ion battery and began mass production of the battery this December. The new 3.1 Ah battery has a nickel positive electrode and an energy density of ...
Physicists see through the opaque with 'T-rays'
Dec 18, 2009 |
4.1 / 5 (9) |
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"T-rays" may make X-rays obsolete as a means of detecting bombs on terrorists or illegal drugs on traffickers, among other uses, contends a Texas A&M physicist who is helping lay the theoretical groundwork to make the concept ...
WISE satellite blasts off on space-map mission
Space & Earth / Space Exploration
Dec 14, 2009 |
4.8 / 5 (6) |
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NASA launched Monday a new breed of satellite called WISE on a mission to orbit Earth and map the skies to find elusive cosmic objects, including potentially dangerous asteroids.
Interactive animations give science students a boost
Other Sciences / Social Sciences
Dec 14, 2009 |
not rated yet |
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For a generation of students raised and nurtured at the computer keyboard, it seems like a no-brainer that computer-assisted learning would have a prominent role in the college science classroom.
