Search results for rotor speed:
Tilting at wind farms
Jan 07, 2009 |
4.9 / 5 (10) |
4
A way to make wind power smoother and more efficient that exploits the inertia of a wind turbine rotor could help solve the problem of wind speed variation, according to research published in the International Journal of ...
Scalable wind turbine might fit on your roof
May 26, 2008 |
4.5 / 5 (74) |
14
When you think of wind power, you probably picture gigantic wind turbines spinning gracefully in the middle of large open areas.
Strap-On Helicopter Could Offer Solo Flying Experience
May 02, 2008 |
3.6 / 5 (78) |
25
Ever since the first human saw a bird soaring through the clouds, our species has harbored a great envy for the freedom that flying gives.
Sticky business – researchers devise new way of mapping the viscosity of cells
May 23, 2008 |
not rated yet |
0
A fluorescent dye can be used to map how viscous, or 'gloopy', different parts of a cell are, according to new research published in the Journal of the American Chemical Society this month.
Free Spirit: Third Extrication Drive Ends With Wheel Stall
Space & Earth / Space Exploration
Nov 23, 2009 |
4 / 5 (2) |
0
(PhysOrg.com) -- Spirit experienced a wheel stall with the right-rear wheel during the second step of a two-step drive on Sol 2092 (Saturday, Nov. 21). This is not the same wheel that stalled on Sol 1899 (May ...
Improved technique determines structure in membrane proteins
Aug 17, 2008 |
3.7 / 5 (3) |
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Understanding the form and function of certain proteins in the human body is becoming faster and easier, thanks to the work of researchers at the University of Illinois.
Molecular Hula Hoop: Spinning motion of a molecular rotor detected
Jul 17, 2008 |
4.6 / 5 (5) |
0
(PhysOrg.com) -- Humans have long been trying to make the dream of nanoscopic robots come true. The dream is, in fact, taking on some aspects of reality. Nanoscience has produced components for molecular-scale ...
The Physics of Pizza Tossing
Apr 09, 2009 |
3.6 / 5 (13) |
6
(PhysOrg.com) -- As dough flies through the air, transforming from a ball into a disk in the chef’s experienced hands, pizza tossing can definitely be thought of as an art. But, as a recent study shows, pizza ...
Inventor Doesn't Dare Say 'Perpetual Motion Machine'
Feb 07, 2008 |
4.4 / 5 (264) |
52
Thane Heins knows the track record of inventors that claim to make breakthroughs in power generation methods, especially when they claim to defy the second law of thermodynamics. Every so often, a (usually ...
Contemplating excess wind
Jun 16, 2009 |
2.6 / 5 (5) |
0
How much usable energy do wind turbines produce? It is a question that perplexes engineers and frustrates potential users, especially on windless days. A study published this month in the International Journal of Energy provid ...
Full speed ahead: High-temperature superconductors ensure efficient propulsion in all-electric ships
Apr 11, 2007 |
4.1 / 5 (17) |
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Researchers from Siemens have developed a new type of propulsion motor for all-electric ships (AES). The synchronous machine is part of an electric propulsion system based on high temperature superconducting technology (HTS). ...
'Anti-noise' silences wind turbines
Aug 11, 2008 |
4.9 / 5 (15) |
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If wind energy converters are located anywhere near a residential area, they must never become too noisy even in high winds. Most such power units try to go easy on their neighbors' ears, but even the most ...
Microscopic 'clutch' puts flagellum in neutral
Biology /
Jun 19, 2008 |
4.7 / 5 (15) |
5
A tiny but powerful engine that propels the bacterium Bacillus subtilis through liquids is disengaged from the corkscrew-like flagellum by a protein clutch, Indiana University Bloomington and Harvard Univer ...
Grad student invents gravity lamp
Feb 19, 2008 |
4.2 / 5 (89) |
16
A U.S. graduate student won second place in a "Greener Gadgets Conference" competition inventing a floor lamp powered by gravity.
Researchers break world record for drive systems
Nov 14, 2008 |
4.3 / 5 (24) |
2
In future it can be expected that the drill used in material processing will become even faster and the compressor used for vehicles and airplanes even more compact. In order to drive these rotary applications ...
