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科学美国人60秒 SSS 2013-09-18

时间:2013-11-25 05:27来源:互联网 提供网友:gmeng   字体: [ ]
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 This Scientific American 60 Second Science, I'm Sophie Bushwick, got a minute.Developed countries spend about 3 percent of all their electrical power treating waste water, the juice purified contaminated material so it can be returned safely to the environment , now researchers think they can turn these power drain into a power source, because the new kind of battery uses microbe to produce electricity from waste water, the work is in preceding of national academy of sciences, like us some microbes draw their energy from organic matter and waste water is chock full of such fuel, so scientists give microorganisms polluted water and wired them up, when the microbes have send electrons the particles travel through the electronic components1 to power a battery, this system had a net efficiency of 30 percent about the same as the commercial solar cell. In theory, microbe batteries like this one could eventually be made more efficient producing enough electricity to power the treatment waste water three times over which give a whole new meaning to the saying waste not want not.  Thanks for the minute, for Scientific Americans 60 Second Science, I'm Sophie Bushwick.       


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1 components 4725dcf446a342f1473a8228e42dfa48     
(机器、设备等的)构成要素,零件,成分; 成分( component的名词复数 ); [物理化学]组分; [数学]分量; (混合物的)组成部分
参考例句:
  • the components of a machine 机器部件
  • Our chemistry teacher often reduces a compound to its components in lab. 在实验室中化学老师常把化合物分解为各种成分。
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TAG标签:   美国科学60秒  英语听力
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