News tagged with air flows
Straighten up and fly right: Moths benefit more from flexible wings than rigid (w/ Videos)
Jun 29, 2009 |
4 / 5 (1) |
2
Most scientists who create models trying to understand the mechanics and aerodynamics of insect flight have assumed that insect wings are relatively rigid as they flap.
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Scientists study hummingbirds flight to develop self-propelled surveillance devices
Dec 16, 2009 |
3.8 / 5 (5) |
1
The secret to the flight of the hummingbird and other tiny birds and insects lies in the looping, swirling flow of air, called a vortex, that their flapping wings create.
Volcanic deposits may aid lunar outposts
Space & Earth / Earth Sciences
Jan 23, 2008 |
3.1 / 5 (9) |
1
A U.S. study of radar images of the moon suggests deposits from early lunar volcanoes might be useful to astronauts at lunar stations.
NIST helps heat pumps 'go with the flow' to boost output
Jan 23, 2008 |
4.7 / 5 (3) |
0
Air-source heat pumps typically deliver 1 1/2 to three times more heating energy to a home than the electric energy they consume. This is possible because heat pumps move heat rather than convert it from a ...
MESSENGER discovers an unusual impact basin on Mercury
Space & Earth / Space Exploration
Apr 30, 2009 |
4.8 / 5 (4) |
0
A previously unknown, large impact basin has been discovered by the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft during its second flyby of Mercury in October 2008. The impact basin, ...
New rechargeable zinc-air batteries coming soon
Oct 29, 2009 |
4.4 / 5 (45) |
15
(PhysOrg.com) -- A new breed of rechargeable zinc-air batteries is soon to be available, and may replace lithium-ion batteries in cell phones, laptops and other consumer items. Lithium-ion batteries store ...
Leading edge vortex allows bats to stay aloft
Biology /
Feb 28, 2008 |
4.7 / 5 (15) |
1
Honey bees and hummingbirds can hover like helicopters for minutes at a time, sucking the juice from their favorite blossoms while staying aloft in a swirl of vortices.
Generating electricity from air flow
Nov 22, 2009 |
3.5 / 5 (11) |
2
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. ...
Going with the flow: Scientists solve 100-year-old engineering problem
Sep 25, 2008 |
4.3 / 5 (33) |
5
(PhysOrg.com) -- As a car accelerates up and down a hill then slows to follow a hairpin turn, the airflow around it cannot keep up and detaches from the vehicle. This aerodynamic separation creates additional ...
Off the shelf maps help mitigate volcanic hazards
Space & Earth / Earth Sciences
Jan 21, 2009 |
4.5 / 5 (2) |
0
(PhysOrg.com) -- When volcanoes erupt, pinpointing the regions at high risk for lethal hazards and deciding whether or not to evacuate a resistant population comprise the most difficult problems faced by hazards ...
IU informaticists show new levels of refinement in predicting human mobility, epidemic spread
Technology / Computer Sciences
Dec 17, 2009 |
5 / 5 (1) |
0
(PhysOrg.com) -- The interplay of human mobility patterns like those between local metropolitan commuters and long-range airline travelers during a global epidemic can be modeled in such detail so as to offer ...
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