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This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? The Nobel Prize in chemistry goes to three men who revolutionized molecular life science, Japans Osamu Shimomura and Americans Martin Chalfie and Roger Tsien. They dev
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LIFE IN THE OCEAN The earths oceans can reach depths of up to 11,000 metres．That is deep enough to cover Mt Qomolangma! The oceans are incredibly large and contain several different habitats．To make it easier to describe the various parts of the
高中英语听力人教版第二册
'Creatures of Light' Glow in New Exhibit Of all the wondrous survival strategies natures creatures have evolved, one of the most dazzling is the ability of some animals to generate light to find their prey, avoid becoming prey and to attract a mate.
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The deep ocean has other sources of light than astronomical bodies, though. 除了天体，深海还有其他光源。 Three-quarters of marine organisms off the coast of California produce their own, and that is probably true in most oceans, 加利福
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Frozen Smoke 固体烟 Male: What's as light as smoke but strong as a brick? Female: I'm gonna take a while guess and say... aerogel ? Male: Sorry,yaoyao,the answer is... Wait a second! Did you say aerogel ? How did you know? F:Yeap! Did you know tha
英语听力文摘 English Digest
These bacteria are not passive riders, these are incredibly important, they keep us alive. 这些细菌不是顺从的乘客，他们难以置信得重要，他们让我们活着。 They cover us in an invisible body armor that keeps environmental in
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