Archaeology has long associated advanced blade production with the Upper Palaeolithic period, about 30,000-40,000 years ago, linked with the emergence of Homo Sapiens and cultural features such as cave art. Now researchers ...
Archaeology
Oct 17, 2011
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Efforts to build larger wind turbines able to capture more energy from the air are stymied by the weight of blades. A Case Western Reserve University researcher has built a prototype blade that is substantially lighter and ...
Engineering
Aug 30, 2011
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A new source of very cold electrons will improve the quality and speed of nanoimaging for drug and materials development to a trillionth of a second.
General Physics
Aug 1, 2011
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Solar panels jut out of streetlights in China's self-proclaimed Clean Energy City. Tiny wind turbines twirl atop public buildings. Schools are due to teach students about "green living."
Energy & Green Tech
Jun 22, 2011
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(PhysOrg.com) -- University of Adelaide acoustics researchers are investigating the causes of wind turbine noise with the aim of making them quieter and solving 'wind turbine syndrome'.
Engineering
Jun 1, 2011
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The buildup of ice on surfaces can cause problems in many situations: On airplane wings or on their engine turbine blades, ice can both add weight and interfere with a wing’s lift, which can make it impossible to take ...
Condensed Matter
Dec 22, 2010
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Wind turbines in Midwestern farm fields may be doing more than churning out electricity. The giant turbine blades that generate renewable energy might also help corn and soybean crops stay cooler and dryer, help them fend ...
Environment
Dec 16, 2010
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A milestone in the history of renewable energy occurred in the year 2008 when more new wind-turbine power generation capacity was added in the U.S. than new coal-fired power generation. The costs of producing power with wind ...
General Physics
Nov 22, 2010
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Magnetic resonance imaging (MRI), a medical imaging technology used to image organs and soft tissues, may hold the key to improving the efficiency of jet engines, according to Lt. Colonel Michael Benson, a Ph.D. student in ...
Engineering
Nov 22, 2010
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While wind energy has shown strong potential as a large-scale, emission-free energy source, bat and bird collisions at wind turbines result in thousands of fatalities annually. Migratory bats, such as the hoary bat, are especially ...
Ecology
Nov 1, 2010
3
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