News tagged with boundary layer
Generating electricity from air flow
Nov 22, 2009 |
3.3 / 5 (10) |
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A group of researchers at the City College of New York is developing a new way to generate power for planes and automobiles based on materials known as piezoelectrics, which convert the kinetic energy of motion into electricity. ...
Solving Teapot Effect
Nov 02, 2009 |
4.9 / 5 (12) |
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(PhysOrg.com) -- A team of scientists from France have worked out why teapots dribble at low flow rates, and how to stop them. The effect is called the "teapot effect", and solving it could finally put an ...
What determines the size of giant dunes?
Mar 04, 2009 |
5 / 5 (3) |
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Physicists at the Laboratory of Physics and Mechanics of Heterogeneous Media (CNRS / Université Paris Diderot / ESPCI ParisTech / Université Pierre et Marie Curie) have shown, in collaboration with scientists ...
Scientists glean new insights into convection in planets and stars
Jan 19, 2009 |
4.5 / 5 (11) |
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(PhysOrg.com) -- A new study by UCLA planetary scientists and their colleagues in Germany overturns a longstanding scientific tenet and provides new insights into how convection controls much of what we observe ...
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Nocturnal wind maximum mapped for first time
Space & Earth / Earth Sciences
Nov 05, 2009 |
4 / 5 (1) |
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On beautiful, sunny days with quiet weather conditions a strong wind develops in the evening at a height of about 200 metres.
Pouring oil on troubled waters – scientists solve secrets of the water-oil interface
Aug 04, 2008 |
3.4 / 5 (21) |
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(PhysOrg.com) -- When oil and water are poured together they meet each other head-on to form a strong and rigid boundary between each other, says new research into how interactions between oil and water work, ...
Cluster -- new insights into the electric circuits of polar lights
Feb 09, 2007 |
4.5 / 5 (8) |
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Giant electrical circuits power the magical open-air light show of the auroras, forming arcs in high-latitude regions like Scandinavia. New results obtained thanks to ESA's Cluster satellites provide a new ...
Avalanches -- triggered from the valley
Dec 02, 2008 |
4.8 / 5 (5) |
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Everybody knows that skiers swishing down steep slopes can cause extensive slab avalanches. But there is a less well known phenomenon: A person skiing a gentle slope in the valley triggers a slab avalanche ...
Growing Population Warming East African Nights?
Space & Earth / Earth Sciences
Mar 31, 2009 |
3.3 / 5 (7) |
1
Nights are getting hotter in Nairobi and other inland cities as growing populations change sensitive local weather patterns, according to research at The University of Alabama in Huntsville.
Probing Question: How do dimples make golf balls travel farther?
Jun 21, 2007 |
3.7 / 5 (19) |
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A golfer's worst enemy may be divots, but his or her best friend may be dimples -- the dimples on a golf ball that send it sailing farther down the fairway.
More evidence chicxulub was too early
Physics /
Mar 29, 2006 |
4.9 / 5 (45) |
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A new study of melted rock ejected far from the Yucatan's Chicxulub impact crater bolsters the idea that the famed impact was too early to have caused the mass extinction that killed the dinosaurs 65 million ...
Dawn Enters Asteroid Belt -- For Good
Space & Earth / Space Exploration
Nov 16, 2009 |
4.7 / 5 (7) |
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(PhysOrg.com) -- NASA's Dawn spacecraft re-entered our solar system's asteroid belt today, Nov. 13, and this time it will stay there.
Liverpool scientist discovers new layer of the Earth
Apr 14, 2005 |
3.3 / 5 (3) |
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A University of Liverpool scientist has discovered a new layer near the Earth's core, which will enable the internal temperature of the Earth's mantle to be measured at a much deeper level than previously possible.
AFRL Proves Feasibility Of Plasma Actuators
Apr 24, 2006 |
4.4 / 5 (5) |
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The Air Force Research Laboratory is laying the groundwork to develop revolutionary hypersonic aerospace vehicles. AFRL is examining the feasibility of replacing traditional mechanical actuators, which move to control an ...
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