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Wednesday, August 29, 2012

ScienceDaily: Strange Science News

ScienceDaily: Strange Science News


Chimpanzees create 'social traditions': Unique handclasp grooming behavior reveals local difference

Posted: 28 Aug 2012 04:08 PM PDT

Researchers have revealed that chimpanzees are not only capable of learning from one another, but also use this social information to form and maintain local traditions. A recent study shows that the way in which chimpanzees groom each other depends on the community to which they belong. Specifically, it is the unique handclasp grooming behaviour that reveals this local difference.

Curiosity rover plays first song transmitted from another planet

Posted: 28 Aug 2012 04:06 PM PDT

For the first time in history, a recorded song has been beamed back to Earth from another planet. Students, special guests and news media gathered at NASA's Jet Propulsion Laboratory in Pasadena, Calif., today to hear "Reach for the Stars" by musician will.i.am after it was transmitted from the surface of Mars by the Curiosity rover.

Why are there so many species of beetles and so few crocodiles?

Posted: 28 Aug 2012 02:17 PM PDT

Why are there so many species of beetles and so few crocodiles? The answer may be ecological limits to species number, scientists report.

Male snails babysit for other dads: Family secrets of marine whelk Solenosteira macrospira

Posted: 28 Aug 2012 01:30 PM PDT

Pity the male of the marine whelk, Solenosteira macrospira. He does all the work of raising the young, from egg-laying to hatching -- even though few of the baby snails are his own. Throw in extensive promiscuity and sibling cannibalism, and the species has one of the most extreme life histories in the animal kingdom.

Heightened visual awareness by following brains natural rhythms?

Posted: 28 Aug 2012 10:51 AM PDT

Like a melody that keeps playing in your head even after the music stops, researchers have shown that the beat goes on when it comes to the human visual system. Researchers used periodic visual stimuli and electroencephalogram recordings and found, one, that they could precisely time the brain's natural oscillations to future repetitions of the event, and, two, that the effect occurred even after the prompting stimuli was discontinued. These rhythmic oscillations lead to a heightened visual awareness of the next event, meaning controlling them could lead to better visual processing when it matters most, such as in environments like air traffic control towers.

Gene that predicts happiness in women discovered

Posted: 28 Aug 2012 10:51 AM PDT

Sorry guys, this happiness gene is for women. A new study has found a gene that appears to make women happy, but it doesn't work for men.

Space-warping white dwarfs produce gravitational waves

Posted: 28 Aug 2012 10:49 AM PDT

Gravitational waves, much like the recently discovered Higgs boson, are notoriously difficult to observe. Scientists first detected these ripples in the fabric of space-time indirectly, using radio signals from a pulsar-neutron star binary system. The find, which required exquisitely accurate timing of the radio signals, garnered its discoverers a Nobel Prize. Now a team of astronomers has detected the same effect at optical wavelengths, in light from a pair of eclipsing white dwarf stars.

Capturing movements of actors and athletes in real time with conventional video cameras

Posted: 28 Aug 2012 06:31 AM PDT

Within milliseconds, and just with the help of mathematics, computing power and conventional  video cameras, computer scientists can automatically capture the movements of several people. The new approach helps not only animation specialists in Hollywood movies but also medical scientists and athletes.

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