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http://www.sciencenews.org/view/issue/id/8480
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In the December 5 Issue:
- TABLE OF CONTENTS
- Climate might be right for a deal: Copenhagen negotiations will take steps toward a climate-stabilizing treaty
- Botanical Whales: Adventures in the Tortugas reveal that seagrass fields need saving too
- Breaking the Speed Limit: Studies examine physiology and technology to better foresee the ultimate edge of human performance
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May 5th, 2007
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Older women with osteoporosis who received yearly infusions of a drug that prevents bone loss had far fewer fractures than did peers who didn't get the drug. (p. 275)
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Language might have evolved from hand gestures, say researchers who study communication in chimpanzees. (p. 275)
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Physicists have found a way to almost double measurement precision when using photons to gauge distances. (p. 276)
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Even when monkeys are anesthetized, their brains show patterns of electrical activity similar to those exhibited during wakeful activity. (p. 276)
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Mercury is hot stuff: It's got a core that's at least partially molten, a new radar study of the planet's spin reveals. (p. 277)
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Small pieces of genetic material called microRNA might provide a preview of pancreatic cancer's aggressiveness and offer targets for combating the usually deadly disease. (p. 278)
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Switching the nation's vehicles from gasoline to ethanol may not reduce air pollution. (p. 278)
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Researchers have found the oldest solar observatory in the Americas, a group of 13 towers first used around 300 B.C. to mark the positions of sunrises and sunsets from summer to winter solstice. (p. 280)
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Networks of tiny computerized sensors that adjust their function as needed may soon pervade our environment. (p. 282)
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A new algorithm might make online driving directions more accurate. (p. 285)
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Stinky compounds emitted by ladybugs can impart a foul taste to wines made from grapes on which the insects had been feeding. (p. 285)
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Male chimps collaborate in a variety of ways and, like people, often find partners outside of their immediate families for cooperative ventures. (p. 286)
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In recent decades, the waters of Lake Superior have warmed significantly faster than have air temperatures at nearby sites onshore, a trend caused in part by a long-term decrease in the lake's winter ice cover. (p. 286)
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Among spiders, fluorescence under ultraviolet light seems to be a widespread trait. (p. 286)
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Solar activity, which waxes and wanes in an 11-year cycle, will most likely begin its next round in March 2008 and peak sometime between late 2011 and mid 2012. (p. 286)
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(p. 287)
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