News tagged with free
Study: States need economic freedom to benefit from natural resources
Dec 18, 2009 |
2.3 / 5 (3) |
1
(PhysOrg.com) -- States with small governments, low taxes and labor market freedom enjoy greater benefits from natural resource development than states with large and intrusive government policies, according to a new study ...
Elusive 'hot' electrons captured in ultra-thin solar cells
Dec 11, 2009 |
4.5 / 5 (12) |
3
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 ...
New structure could produce efficient semiconductor laser sources
Dec 14, 2009 |
4.7 / 5 (3) |
1
(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 ...
Shopping study: Do free samples really make you buy products?
Dec 14, 2009 |
4 / 5 (1) |
0
(PhysOrg.com) -- As you do your holiday shopping this year, you'll probably encounter plenty of free sample stands at the big warehouse stores and grocery stores. Common sense might tell you that eating a bunch of samples ...
Lasers used to make first boron-nitride nanotube yarn (w/ Video)
Nanotechnology / Nanomaterials
Dec 02, 2009 |
4.8 / 5 (14) |
2
(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 ...
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, ...
Poor being turned away from free cancer screenings
Dec 13, 2009 |
3 / 5 (2) |
3
(AP) -- As the economy falters and more people go without health insurance, low-income women in at least 20 states are being turned away or put on long waiting lists for free cancer screenings, according ...
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) |
18
(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 ...
Bouncing atoms may be the key to the future of gravimetry
Apr 27, 2009 |
4.4 / 5 (14) |
1
(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 ...
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 ...
UN: Fight climate change with free condoms
Nov 18, 2009 |
2.9 / 5 (12) |
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(AP) -- The battle against global warming could be helped if the world slowed population growth by making free condoms and family planning advice more widely available, the U.N. Population Fund said Wednesday.
Virtual education... for free
Jul 31, 2009 |
5 / 5 (15) |
7
They don't offer degrees but then they don't charge tuition either.
Tiny particles can deliver antioxidant enzyme to injured heart cells
Nov 16, 2009 |
5 / 5 (2) |
0
Researchers at Emory University and the Georgia Institute of Technology have developed microscopic polymer beads that can deliver an antioxidant enzyme made naturally by the body into the heart.
