Archive: 11/22/2012

I am SAM

Yesterday Mars Science Laboratory principal investigator John Grotzinger set the entire space science world abuzz with a tantalizing promise of "earthshaking" news on the horizon—literally "one for the history books," as he put it in an interview with ...

dateNov 22, 2012 in Space Exploration
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One material, two types of magnetism

When placed next to a bar magnet, an aluminum ball draws gently towards the magnet. In contrast, a ball made of silver moves out of the magnetic field. The mechanisms underlying these different behaviors ...

dateNov 22, 2012 in General Physics
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1000 calibration reports . . . and counting

The U.S. Internet – and indeed any communication system that sends information by fiber-optic cable – depends critically on strong, clear signals propagating reliably through transmission lines. The principal ...

dateNov 22, 2012 in General Physics
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US roads, airports unready for extreme weather

(AP)—America's lifelines—its roads, airports, railways and transit systems—are getting hammered by extreme weather beyond what their builders imagined, leaving states and cities searching for ways to ...

dateNov 22, 2012 in Other
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Muscle powers spearing mantis shrimp attacks

Mantis shrimps pack a powerful punch, whether they smash or spear their victims. According to Maya deVries and Sheila Patek from University of California, Berkeley, smasher mantis shrimps power their claws' ballistic blows ...

dateNov 22, 2012 in Plants & Animals
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