News tagged with free
Second Law of Thermodynamics May Explain Economic Evolution
Nov 02, 2009 |
4.3 / 5 (34) |
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(PhysOrg.com) -- Terms such as the "invisible hand," laissez-faire policy, and free-market principles suggest that economic growth and decline in capitalist societies seem to be somehow self-regulated. Now, ...
Bouncing atoms may be the key to the future of gravimetry
Apr 27, 2009 |
4.4 / 5 (14) |
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(PhysOrg.com) -- When studying cold atoms, scientists often use magnetic or optical traps to keep the atoms in place. However, in some cases experimentalists want to study free atoms, avoiding the effects of a trap. "One ...
Optimized by Evolution, Ants Don't Have Traffic Jams
Mar 30, 2009 |
4 / 5 (21) |
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(PhysOrg.com) -- As highway traffic increases, you'd probably expect a traffic jam, where vehicles slow down due to the high density. While traffic jams are a common occurrence on our highways, high density ...
Salt Water System Could Generate Hydrogen
Mar 18, 2009 |
3.9 / 5 (31) |
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(PhysOrg.com) -- The idea of generating hydrogen from salt water has often been claimed to work effectively. However, the systems proposed so far generally require a much greater energy input than the energy ...
Elusive 'hot' electrons captured in ultra-thin solar cells
Dec 11, 2009 |
4.5 / 5 (12) |
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Boston College researchers have observed the "hot electron" effect in a solar cell for the first time and successfully harvested the elusive charges using ultra-thin solar cells, opening a potential avenue to improved solar ...
Lasers used to make first boron-nitride nanotube yarn (w/ Video)
Nanotechnology / Nanomaterials
Dec 02, 2009 |
4.8 / 5 (15) |
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(PhysOrg.com) -- Researchers have used lasers to create the first practical macroscopic yarns from boron nitride fibers, opening the door for an array of applications, from radiation-shielded spacecraft to ...
Scientists work to free Mars rover Spirit
Space & Earth / Space Exploration
Oct 13, 2009 |
5 / 5 (11) |
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(PhysOrg.com) -- In the past several weeks, scientists at NASA's Jet Propulsion Laboratory finished experimentation on methods to get the rover Spirit unstuck from its location near a plateau called Home Plate.
Virtual education... for free
Jul 31, 2009 |
5 / 5 (15) |
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They don't offer degrees but then they don't charge tuition either.
Apple sued for stifling iPod tricks
Apr 28, 2009 |
4.5 / 5 (4) |
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Internet rights champions have accused Apple of stifling free speech by bullying OdioWorks into ending online sharing of ways to get iPods to work with music websites other than iTunes.
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Shaking the Fundamentals of Physics: At the Limits of the Photoelectric Effect
Apr 24, 2009 |
4.3 / 5 (24) |
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With extremely short wavelengths and very high intensities, light-matter interaction seems to be different than previously accepted.
Keep on spinning: A persistent spin state that could revolutionize spintronics
Apr 02, 2009 |
4.2 / 5 (10) |
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(PhysOrg.com) -- By controlling the collective spin state of highly mobile electrons in semiconductors, researchers in the Materials Sciences Division (MSD) at the U.S. Department of Energy's Lawrence Berkeley ...
Apple's restriction-free music downloads create pause
Feb 11, 2009 |
3.3 / 5 (7) |
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When Apple Inc. announced in January that it would sell restriction-free music files, that was supposed to mean consumers could buy songs and play them on the portable gadget of their choice.
New structure could produce efficient semiconductor laser sources
Dec 14, 2009 |
4.7 / 5 (3) |
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(PhysOrg.com) -- University of Wisconsin-Madison researchers have achieved a nanoscale laser structure they anticipate will produce semiconductor lasers in the next two years that are more than twice as efficient ...
Road rage: Fuel vapor heightens aggression
Nov 24, 2009 |
4.5 / 5 (4) |
1
Outrageous prices may not be the only thing causing anger at the petrol pumps. A new study, published in the open access journal BMC Physiology, has shown that rats exposed to fumes from leaded and unleaded gasoline become ...
Tapering a Free-Electron Laser to Extract More Juice
Nov 20, 2009 |
4 / 5 (1) |
0
(PhysOrg.com) -- Researchers from the NSLS and Science Applications International Corporation (SAIC) have demonstrated a technique that could be used to significantly improve the quantity and quality of light ...
