Secondhand Smoke 二手烟 Secondhand smoke is the combination of sidestream smoke (the smoke given off by a burning tobacco product) and mainstream smoke (the smoke exhaled by a smoker). 二手烟包括侧流烟（烟草产品燃烧释放的烟）和主

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Under Pressure压力之下 In physics, pressure depends on the amount of force acting on a surface and on the size of the surface. The smaller the surface, the greater the pressure. Lets say that a woman steps on your toe; she weighs 120 pounds. If s

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Believe In God And Feel Better 有信仰会感觉更好么？ Whether or not a treatment for an illness or disorder works usually doesnt depend on whether we believe it will work. For example, if you have an MRI, barring a malfunction, the technology

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How Far Away Is The Horizon? 地平线有多远？ Heres a neat question you may have never thought to ask. How far away is the horizon? 你可能从未思考过这个简单的问题，地平线有多远？ Flat Earth 地球是平的 Think about it.

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Fun Fact: Alligators Can Regrow Teeth 有趣的事实：短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

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Why Dont Humans Have Spots Or Stripes? 为什么人类身上没有斑点或条纹？ Have you ever wondered why we humans dont have spots or stripes? Well, maybe you havent, but it is interesting that so many creatures are multicolored but we are not

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Has Earths Gravitational Pull Been Changing? 地球的引力改变过吗？ Don, why are you slouching? Dont you know its bad for you? 唐，为啥你无精打采？你不知道这对你不好？ Did you know that about 200 tons of debris strike the

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伦敦:一位数学家说,他可以94%的准确率来预测某对新婚夫妇是否会享有长久的婚姻。西雅图华盛顿大学数学教授默里说他发明的两个公式基于一项为期10年对700对美国夫妇进行的研究。心理学家

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The animated mock documentary Surf's Up is a delightfully rendered summer diversion in which a tiny Rockhopper penguin named Cody Maverick aspires to be a surfing champion. Young Cody (voiced by Shia LaBeouf) is discovered in his native Shiverpool by

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Astronomers And Cancer Researchers Work Together To Fight Cancer 天文学家和癌症研究者共同抗击癌症 At first glance, astronomers and cancer researchers may not seem to have a lot in common. After all, astronomers spend their time gazing

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Killer Cats: Cats Kill Up To 3.7 Billion Birds Each Year 杀手猫：猫每年杀死37亿只禽类 Its time to go again to the A Moment of Science mailbag. A listener writes: 又到了《科学一刻》听众来信时间了。一位听众写道： De

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Heart Rate: What A Babys Heart Rate Should Be 婴儿的心率应该为多少呢？ Picture new parents cooing at their baby on the couch. The babys quiet and calm, and everyones at rest. So their heart rates are low, maybe 60 or 70 beats a minute for

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How Did Dogs Become Mans Best Friend? 狗是如何让成为人类最好的朋友的呢？ Weve all heard the phrase dog is mans best friend. But how did dogs get to be so friendly with humans? It turns out that dog domestication wasnt simply a matter

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Years Ago, The Year Was 400 Days Long 多年前，一年长达400天 Don: Yaeuml;l, do you notice the days changing length over the course of the year? 东：雅瑶，你有注意到一年中每一天的长度在改变么？ Yaeuml;l: Sure, Don, it s

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Why Cashews Arent Sold In The Shell 为何腰果不带壳销售 Part of the fun of eating almonds or pecans is cracking the shell and getting the nut. But, some nuts, like cashews, are almost always sold shelled and roasted. Why arent cashews sold in

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