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This is Scientific American's 60-Second Science. I'm Karen Hopkin, this'll just take a minute. On February 8th, we told you about scientists who had created a device worn over the knees that could harvest the energy you otherwise waste while walking.

发表于:2018-12-24 / 阅读(31) / 评论(0) 分类 Scientific American(二)月

Its the material at the tip of a pencil and it has the potential to revolutionize our lives. A study from Columbia University has shown that graphene is the strongest material in the world. In fact , it is much tougher than diamonds and 300 times str

发表于:2018-12-28 / 阅读(52) / 评论(0) 分类 轻松英文阅读

Tree Electricity Runs Nano-Gadget A report in the journal IEEE Transactions on Nanotechnology shows that maple trees generate a small, but measureable amounts of electricity, which can power tiny devices. Karen Hopkin reports If scientists have thei

发表于:2019-01-02 / 阅读(100) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. It might look and even feel like paper, but a new material created by scientists at MIT is designed to be an oil spill super-absorber. This technology d

发表于:2019-01-08 / 阅读(62) / 评论(0) 分类 Scientific American(六)月

Scientists in Brazil are turning fruit fibers into car parts. At a recent meeting of the American Chemical Society, the researchers described their work in making the next generation of automotive parts made from natural fibers from bananas, pineappl

发表于:2019-01-09 / 阅读(61) / 评论(0) 分类 VOA标准英语2011年(四月)

Panel Urges Study of Nanomaterial Risks The nano market is booming. In 2009 developers generated $1 billion from the sale of nanomaterials. The global market for products that rely on these materials is expected to grow to $3 trillion by 2015. Yet wi

发表于:2019-01-14 / 阅读(54) / 评论(0) 分类 VOA标准英语2012年(二月)
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