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Wind Tunnel Testing Used to Understand the Unsteady Side of Aerodynamics
Think about a time you've been a passenger in a car and stuck your hand out the window. As your speed increases, so do the vibrations in your hand. Trying to keep those fingers steady as the wind wh ... more
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Chelyabinsk asteroid measured 12,000 tonnes
The asteroid that smashed into the central Russian city of Chelyabinsk initially measured 19 metres (61 feet) across, packing the energy of dozens of Hiroshima bombs, a study said on Wednesday. ... more
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First study of Russian meteor
The meteor that exploded over Chelyabinsk, Russia in February 2013 was "a wake-up call," according to a University of California, Davis scientist who participated in analyzing the event. The work is ... more
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Climate change scientists must turn their attention to clean skies
Natural aerosols, such as emissions from volcanoes or plants, may contribute more uncertainty than previously thought to estimates of how the climate might respond to greenhouse gas emissions.
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