[网络] 几丁质

material scientists admire spider silk for being lightweight and strong.now another arthropod product is getting into the act insect cuticle,the tough flexible material is inside insect skeleton.researchers at harvard * institute for biological inspi

发表于:2018-12-02 / 阅读(289) / 评论(0) 分类 Scientific American(十二)月

This is scientific American sixty seconds science. I'm Christopher Intagliata. Got a minute? Worldwide, we know of enough uranium to power today's nuclear reactors for another hundred years according to the nuclear energy agency. But scientists say t

发表于:2018-12-24 / 阅读(201) / 评论(0) 分类 Scientific American(八)月
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