This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Living in the city, you can't escape traffic noise. But it's not just a nuisance. If you're over 65, the noise might be a risk to your health, tooby increasing

发表于:2018-12-24 / 阅读(207) / 评论(0)

Scientific American(一)月

SSS 2011-12-27

This is Scientific American's sixty seconds science, I'm Steve Mirsky. Got a minute? The eastern green tree frog looks exactly like the close related cops gree tree frog, the big difference between the two species is beneath the surface. The eastern

发表于:2018-12-02 / 阅读(183) / 评论(0)

Scientific American(十二)月

SSS 2011-12-23

You've found that perfect pricey gift to your significant other. Now you decided to pick up a little something else, but wait! The second smaller gift can actually take away from the powerful impression from the gift No. 1. That's according to the an

发表于:2018-12-02 / 阅读(199) / 评论(0)

Scientific American(十二)月

SSS 2011-12-21

spiciness is chilli pepper's best defense against seed attacking microbes.but not all chillis are hot, because producing that heat comes at a price.so says a study in journal proceeding the royal society b.researchers look at wild chilli populations

发表于:2018-12-02 / 阅读(164) / 评论(0)

Scientific American(十二)月

SSS 2011-12-20

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(201) / 评论(0)

Scientific American(十二)月

SSS 2011-12-28

This is scientific American's 60 seconds science.I'm Sophie Bushwick.Got a minute? For shift workers odd hours usually mean strange sleeping habits and unhealthy meals.And now an editorial in the journal Public Library of Science Medicine takes the p

发表于:2018-12-02 / 阅读(155) / 评论(0)

Scientific American(十二)月

SSS 2011-12-30

This is Scientific American's sixty seconds science, I'm Christopher Intagliata. Got a minute? Instead of installing solar paint on your roof how about just giving a house new paint job of cause you'd have to sure to use solar paint. That's what to a

发表于:2018-12-02 / 阅读(216) / 评论(0)

Scientific American(十二)月

SSS 2011-12-29

nobody likes getting shots, but what if you could make the needles so tiny that they broke skin painlessly. engineers from top university have created such micro needles, made from major protein in silk, fibrolin. the work is in the journal of advanc

发表于:2018-12-02 / 阅读(189) / 评论(0)

Scientific American(十二)月

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学英语单词

adenosyls

air lubricating skid bag

alloplastic

amiram

ammonium dihydrogen orthophosphate

anastomotic branch with lacrimal artery

antediluvian patriarches

anthemwise

asymmetrical short-circuit

bank notes

barylalia