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(68) / 评论(0) 分类 Scientific American(十二)月

This is Scientific American's 60-Second Science, I am Cynthia Graber. This will just take a minute. Counterfeiters and money minters constantly try to outsmart each other. But money could become much harder to forgethanks to butterfly wings. Butterfl

发表于:2019-01-08 / 阅读(40) / 评论(0) 分类 Scientific American(六)月

When you think you've seen everything that could possibly be done with nail art, manicure devotees prove you wrong. Step forward the new trend blowing up on Instagram for 'bubble' nails, where acrylic is piled up on top of the nail and thinned out to

发表于:2019-01-28 / 阅读(51) / 评论(0) 分类 阅读空间

That's right kids, after argan oil and coconut oil have taken the beauty industry by storm, avocado oil is about to become the It ingredient of the moment. And while you can expect to see it pop up in more and more products, the concept of using it o

发表于:2019-02-01 / 阅读(32) / 评论(0) 分类 阅读空间

Malaria killed 435,000 people last year, most of them in Africa. 去年435,000人死于疟疾,其中大部分在非洲。 The parasite that causes the illness is carried by females of some, but not all, species of mosquitoes of the genus Anopheles.

发表于:2019-02-16 / 阅读(46) / 评论(0) 分类 经济学人科技系列

在记忆词汇时,总会出现很多长得差不多的词汇令我们混淆,从而导致GRE词汇记忆不清楚。下面为大家搜集了一些GRE词汇中长的差不多的词语,希望能够帮助大家将其进行区分,加深记忆。

发表于:2019-02-25 / 阅读(65) / 评论(0) 分类 GRE英语