Archive: 05/12/2010
Of microorganisms and man: First large-scale test confirms Darwin's theory of universal common ancestry
More than 150 years ago, Darwin proposed the theory of universal common ancestry (UCA), linking all forms of life by a shared genetic heritage from single-celled microorganisms to humans. Until now, the theory that makes ...
May 12, 2010 |
4.3 / 5 (65) |
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Phantom Ray unmanned aircraft makes its debut
After only two years of development, the Phantom Ray unmanned airborne system (UAS) was unveiled at a ceremony in St. Louis on May 10. Built by Boeing in St. Louis, the sleek, fighter-sized UAS combines survivability ...
May 12, 2010 |
4.2 / 5 (26) |
17
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Redefining electrical current law with the transistor laser
(PhysOrg.com) -- While the laws of physics weren't made to be broken, sometimes they need revision. A major current law has been rewritten thanks to the three-port transistor laser, developed by Milton Feng ...
May 12, 2010 |
4.7 / 5 (23) |
5
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Prof disproves gene analysis that appeared to support out-of-Africa replacement model
(PhysOrg.com) -- In the sometimes opaque world of statistics, Alan R. Templeton, Ph.D., professor of biology in Arts & Sciences at Washington University in St. Louis, has found that it's good to know your ...
May 12, 2010 |
5 / 5 (21) |
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Spiders at the nanoscale: Molecules that behave like robots
A team of scientists from Columbia University, Arizona State University, the University of Michigan, and the California Institute of Technology (Caltech) have programmed an autonomous molecular "robot" made ...
Nanotechnology / Bio & Medicine
May 12, 2010 |
4.7 / 5 (15) |
9
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12 attoseconds is the world record for shortest controllable time
Lasers can now generate light pulses down to 100 attoseconds thereby enabling real-time measurements on ultrashort time scales that are inaccessible by any other methods. Scientist at the Max Born Institute ...
May 12, 2010 |
4.6 / 5 (15) |
5
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The sum of digits of prime numbers is evenly distributed
(PhysOrg.com) -- On average, there are as many prime numbers for which the sum of decimal digits is even as prime numbers for which it is odd. This hypothesis, first made in 1968, has recently been proven by French researchers ...
May 12, 2010 |
4.8 / 5 (14) |
2
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Easter Island discovery sends archaeologists back to drawing board
Archaeologists have disproved the fifty-year-old theory underpinning our understanding of how the famous stone statues were moved around Easter Island.
Other Sciences / Archaeology & Fossils
May 12, 2010 |
4.6 / 5 (14) |
7
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Eleven-foot 'giant herring' found off Sweden
A "giant herring" measuring 3.5 metres (11.4 feet) has been discovered off Sweden's western coast -- the first such fish found in the Scandinavian country in more than 130 years, a maritime museum said Tuesday.
May 12, 2010 |
4.4 / 5 (13) |
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The downside of marriage: the greater a wife's age gap from her husband, the lower her life expectancy
Marriage is more beneficial for men than for women - at least for those who want a long life. Previous studies have shown that men with younger wives live longer. While it had long been assumed that women ...
May 12, 2010 |
3.4 / 5 (17) |
6
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Eureka! Neural evidence for sudden insight
A recent study provides intriguing information about the neural dynamics underlying behavioral changes associated with the development of new problem solving strategies. The research, published by the Cell ...
Medicine & Health / Neuroscience
May 12, 2010 |
4.8 / 5 (12) |
5
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Investigating how spiders spin their silk, researchers unravel a key step
Five times the tensile strength of steel and triple that of the currently best synthetic fibers: Spider silk is a fascinating material. But no one has thus far succeeded in producing the super fibers synthetically. ...
Chemistry / Analytical Chemistry
May 12, 2010 |
5 / 5 (11) |
3
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Making light work: The 50-year odyssey of the laser
Fifty years ago next Sunday, a 32-year-old engineer called Theodore Maiman switched on a gadget at Hughes Research Laboratories in California, and watched as pulses of light sprang from a pink ruby crystal.
May 12, 2010 |
4.9 / 5 (10) |
2
The strongest animal in the world
The world's strongest animal, the copepod, is barely 1 mm long. It shows that copepods - in relation to their size - are more than 10 times as strong as has been previously documented for any other animal.
May 12, 2010 |
3.7 / 5 (13) |
2
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Discarded data may be gateway to new brain insights
Scientists regularly discard up to 90 percent of the signals from monitoring of brain waves, one of the oldest techniques for observing changes in brain activity. They discard this data as noise because it produces a seemingly ...
Medicine & Health / Neuroscience
May 12, 2010 |
5 / 5 (9) |
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