Search results for laminar:
Putting an end to turbulence
Nov 21, 2008 |
4.5 / 5 (33) |
1
When a flow reaches a certain speed, things get turbulent: The fluid or the gas no longer flows in an orderly fashion but whirls around wildly. However, in contrast to what researchers assumed until now, this ...
Nanometric butterfly wings created
Nanotechnology / Nanomaterials
Oct 08, 2009 |
4.7 / 5 (6) |
3
A team of researchers from the State University of Pennsylvania (USA) and the Universidad Autónoma de Madrid (UAM) have developed a technique to replicate biological structures, such as butterfly wings, ...
Uneven surfaces conserve fuel
Physics /
Feb 22, 2006 |
4.5 / 5 (34) |
0
Tiny regular bumps on a surface, such as the wing of an airplane, can substantially reduce total air resistance, and thereby the consumption of fuel. Wind tunnel tests at the Royal Institute of Technology in Stockholm, Sweden, ...
It’s not just cricket – actually it's physics
Oct 06, 2006 |
3.4 / 5 (18) |
0
Ever wanted to face a Shane Warne spin delivery or smash a Glen McGrath speed bowl? A new bowling simulator may enable you to do just that. The machine is the first of its kind to use physics, real cricket balls and novel ...
Probing Question: How do dimples make golf balls travel farther?
Jun 21, 2007 |
3.7 / 5 (19) |
0
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.
Purdue wind tunnel key for 'hypersonic vehicles,' future space planes
Jan 02, 2008 |
3.5 / 5 (6) |
0
By using the only wind tunnel capable of running quietly at "hypersonic" speeds, Purdue University engineers have conducted experiments to yield critical data for designing an advanced aircraft called the ...
Membraneless fuel cell is tiny, versatile
Mar 23, 2005 |
3.3 / 5 (9) |
0
A fuel cell designed by researchers at the University of Illinois at Urbana-Champaign can operate without a solid membrane separating fuel and oxidant, and functions with alkaline chemistry in addition to the ...
New wind tunnel operates quietly at Mach 6, helps shape future aircraft
Jan 06, 2006 |
5 / 5 (1) |
0
Purdue University engineers have developed a wind tunnel that is the only one of its kind in the world capable of running quietly at "hypersonic" speeds, helping researchers to design advanced aircraft and ...
Marine technology inspired by dolphins' speed
Jun 06, 2006 |
4.5 / 5 (76) |
0
According to Gray’s paradox, dolphins swim faster than they should be able to. Since Gray, scientists have discovered flaws in the details of the paradox, although some explanations of these creatures’ aquatic ...
The new 'look' of superconductivity
Jul 06, 2007 |
4.3 / 5 (43) |
0
Like the surface motif of a bubble bath, the spatial distribution of a magnetic field penetrating a superconductor can exhibit an intricate, foam-like structure. Ruslan Prozorov at the U.S. Department of ...
Study suggests caution on a new anti-obesity drug in children
Medicine & Health / Medications
May 07, 2008 |
5 / 5 (1) |
1
A new class of anti-obesity drugs that suppresses appetite by blocking cannabinoid receptors in the brain could also suppress the adaptive rewiring of the brain necessary for neural development in children, studies with mice ...
Trading energy for safety, bees extend legs to stay stable in wind
Jun 02, 2009 |
5 / 5 (3) |
0
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 ...
Rocketing Through Water
Jun 30, 2008 |
3.8 / 5 (16) |
3
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 ...
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.
Research Could Cut Aircraft Development Costs, Improve Safety
Apr 30, 2008 |
4.3 / 5 (6) |
0
A distressing fact for aeronautical engineers: Scale model airplanes don't fly anything like their full-sized counterparts. And that makes aircraft design a lot more difficult.
