单词：tetracyclinonitrile
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This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang
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Social unrest is sweeping southern Europe, with protesters taking to streets in Spain and Greece, angry about high unemployment, welfare cuts and their governments' handling of the economic crisis. With demonstrations showing no sign of ending soon,
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10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur
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Doctors and researchers are applying lessons learned from treating survivors of the Boston Marathon bombing in 2013 to advance prosthetics. A new amputation procedure saves tendons that are normally severed. CRI's Yu Yang has the story. Survivor Marc
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