News tagged with drag
Engineer Discovers Why Particles Like Flour Disperse on Liquids
Nov 16, 2009 |
4.3 / 5 (15) |
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(PhysOrg.com) -- Even if you are not a cook, you might have wondered why a pinch of flour (or any small particles) thrown into a bowl of water will disperse in a dramatic fashion, radiating outward as if it ...
Trading energy for safety, bees extend legs to stay stable in wind
Jun 02, 2009 |
5 / 5 (3) |
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New research shows some bees brace themselves against wind and turbulence by extending their sturdy hind legs while flying. But this approach comes at a steep cost, increasing aerodynamic drag and the power ...
Airliners could save fuel by taking a hint from birds flying in formation
Jun 01, 2009 |
4.5 / 5 (14) |
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(PhysOrg.com) -- From Leonardo da Vinci to the Greek tragedy of Icarus, birds have emboldened scientific minds to master flight. Now, Stanford researchers can be added to the list of ornithologically inspired ...
GOCE satellite achieves drag-free perfection (w/Videos)
Space & Earth / Space Exploration
May 26, 2009 |
4.8 / 5 (19) |
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(PhysOrg.com) -- ESA's gravity mission GOCE has achieved a first in the history of satellite technology. The sophisticated electric propulsion system has shown that it is able to keep the satellite completely ...
GOCE's 'heart' starts beating
Space & Earth / Space Exploration
Apr 08, 2009 |
5 / 5 (3) |
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GOCE's highly sensitive gradiometer instrument has been switched on and is producing data. Forming the heart of GOCE, the gradiometer is specifically designed to measure Earth's gravity field with unprecedented ...
Lead-flapping objects experience less wind resistance than their trailing counterparts
Nov 10, 2008 |
4 / 5 (25) |
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It is commonly known that racing cars and bicyclists can reduce air resistance by following closely behind a leader, but researchers from New York University and Cornell University have found the opposite is true with flapping ...
White vans goes green: Novel spoiler design reduces fuel consumption
Nov 10, 2008 |
3.7 / 5 (17) |
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As if the drivers of mini vans and utility vehicles needed any more encouragement to drive fast between jobs, US researchers have designed a new rear spoiler for bluff-backed vehicles that can reduce drag and lift significantly. ...
Olympic Swimmers Shattering Records in NASA-Tested Suit
Aug 18, 2008 |
4.5 / 5 (11) |
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(PhysOrg.com) -- Swimmers from around the world are setting world and Olympic records in Beijing this month and most are doing it wearing a swimsuit made of fabric tested at NASA.
Rocketing Through Water
Jun 30, 2008 |
3.8 / 5 (16) |
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Swimmers around the world are breaking records this year like never before, including at this week's U.S. Olympic trials. Some attribute it to extensive training as athletes prepare to compete at this summer's ...
NASA to Attempt Historic Solar Sail Deployment
Space & Earth / Space Exploration
Jun 27, 2008 |
4.3 / 5 (54) |
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"Hold your hands out to the sun. What do you feel? Heat, of course. But there's pressure as well – though you've never noticed it, because it's so tiny. Over the area of your hands, it only comes to about a millionth of an ...
