News tagged with drag
A 50-year quest to isolate the thermoelectric effect is now over: Magnon drag unveiled
In a paper published in Nature Materials, a group of researchers at the Catalan Institute of Nanotechnology (ICN, Spain) led by Prof. Sergio O. Valenzuela reports the observation of the magnon drag. This w ...
Dec 18, 2011 |
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Fungal spores travel farther by surfing their own wind (w/ Video)
Long before geese started flying in chevron formation or cyclists learned the value of drafting, fungi discovered an aerodynamic way to reduce drag on their spores so as to spread them as high and as far as ...
Sep 27, 2010 |
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A plane that lands like a bird (w/ Video)
Everyone knows what it's like for an airplane to land: the slow maneuvering into an approach pattern, the long descent, and the brakes slamming on as soon as the plane touches down, which seems to just barely ...
Jul 20, 2010 |
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German satellite re-enters Earth's atmosphere
A German satellite the size of a car re-entered the Earth's atmosphere early Sunday, officials said, adding they did not know yet if any debris had hit the Earth.
Space & Earth / Space Exploration
Oct 23, 2011 |
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GOCE satellite achieves drag-free perfection (w/Videos)
(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 ...
Space & Earth / Space Exploration
May 26, 2009 |
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Space tourism craft reaches glide-test milestone (Update)
High over the Mojave Desert, the stubby-winged SpaceShipTwo bent itself into a near-right angle shape and plunged nearly straight downward for more than a minute before unfolding and gliding to a runway landing ...
Space & Earth / Space Exploration
May 04, 2011 |
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Trading energy for safety, bees extend legs to stay stable in wind
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 ...
Jun 02, 2009 |
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Flies Don't Think Much Of Turning (w/ Video)
The next time a fly dodges your swatter, take a moment to appreciate how maneuverable these little pests are. Fruit flies can make a complete U-turn in one-tenth of the time it takes you to blink.
Apr 02, 2010 |
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Engineer Discovers Why Particles Like Flour Disperse on Liquids
(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 ...
Nov 16, 2009 |
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Airliners could save fuel by taking a hint from birds flying in formation
(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 ...
Jun 01, 2009 |
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A hot body could help ships reduce drag
New research into drag reduction has the potential to help industries such shipping to reduce energy use and carbon emissions.
Jun 02, 2011 |
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GOCE's 'heart' starts beating
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 ...
Space & Earth / Space Exploration
Apr 08, 2009 |
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CNST collaboration tunes viscous drag on superhydrophobic surfaces
(PhysOrg.com) -- By measuring the motion of a vibrating, porous membrane separating water and air, researchers from the NIST Center for Nanoscale Science and Technology, the NIST Physical Measurement Laboratory, the University ...
Dec 01, 2011 |
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Sharkskin for airplanes, ships and wind energy plants
(PhysOrg.com) -- To lower the fuel consumption of airplanes and ships, it is necessary to reduce their flow resistance, or drag. An innovative paint system makes this possible. This not only lowers costs, ...
May 19, 2010 |
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Not a drag: breakthrough will create cleaner, faster planes
(PhysOrg.com) -- A world first model for predicting fluid flows close to surfaces will enable engineers to reduce drag in vehicles, and in turn, lead to more efficient and greener planes, cars and boats, according to a University ...
Jul 09, 2010 |
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