Archive: 11/24/2010

Retirement reduces tiredness and depression

Retirement leads to a substantial reduction in mental and physical fatigue and depressive symptoms, finds a study published in the British Medical Journal today. However, the research also concludes that retirement does not ...

dateNov 24, 2010 in Health
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China restarts rare earth shipments to Japan

(AP) -- China resumed exports to Japan of rare earth minerals crucial in high-tech manufacturing after a two-month de facto ban and a Japanese conglomerate announced a major supply deal with an Australian miner that will ...

dateNov 24, 2010 in Business
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Secrets of sharks' success

New research from the University of South Florida suggests that one of the evolutionary secrets of the shark's success hides in one of its tiniest traits -- flexible scales on the bodies of these peerless ...

dateNov 24, 2010 in Soft Matter
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The physics of coffee rings

For centuries, intellectuals have met at the ring-stained surfaces of coffee shops to pore over the most pressing problems of the day -- but has anyone ever pondered the coffee rings they left behind? What causes the formation ...

dateNov 24, 2010 in General Physics
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