A new study by researchers at the Virginia Institute of Marine Science shows that turbulence from boat propellers can and does kill large numbers of copepods—tiny crustaceans that are an important part of marine food ...
Environment
Apr 19, 2011
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(PhysOrg.com) -- Anyone who has ever flown knows the feeling: an otherwise smooth flight gets a little choppy. If you are lucky, the plane skips a few times like a rock across a pond and then settles. For the not-so-lucky, ...
Engineering
Mar 25, 2011
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Astronomers have a neat trick they sometimes use to compensate for the turbulence of the atmosphere that blurs images made by ground-based telescopes. They create an artificial star called a guide star and use its twinkling ...
Optics & Photonics
Feb 11, 2011
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Large wind farms are being built around the world as a cleaner way to generate electricity, but operators are still searching for the most efficient way to arrange the massive turbines that turn moving air into power.
General Physics
Jan 20, 2011
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Adaptive optics makes it possible to remove distortions caused by turbulence in the atmosphere when observing the sky. A major innovation in this field has been achieved by a Franco-British team, including astronomers from ...
Astronomy
Jan 17, 2011
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As the new year begins, Jupiter will be the only planet visible after sunset, about halfway up the sky in the south-southwest. It will dominate the evening sky as the brightest object in view. January will be the last month ...
Space Exploration
Jan 4, 2011
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Some three thousand kilometers below the surface of the Earth and with temperatures reaching those at the surface of the sun, the core of our home planet is no more within our physical reach today than it was back when Jules ...
Space Exploration
Nov 25, 2010
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(AP) -- Swiss adventurer Yves Rossy has completed two aerial loops using a custom-made jet-propelled wingsuit.
Engineering
Nov 5, 2010
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If you are like most people, you probably enjoy the twinkling of stars that blanket the sky on a clear summer night. If you are an astronomer, chances are you find it extremely annoying.
General Physics
Aug 4, 2010
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(PhysOrg.com) -- Scientists in the US have solved the mystery of how peat mosses manage to get their spores high enough to catch the wind, discovering that they produce vortex rings of air, like miniature "mushroom clouds" ...
