This is Scientific American's 60-Second Science. I'm Christie Nicholson. Got a minute? Which would you rather see: a rare Nepalese gharial or a common vole? Even without knowing what these animals are, you might be more intrigued by the gharial, simp

发表于:2018-12-24 / 阅读(60) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. April 25th was World Malaria Day. The mosquito-borne disease is still one of the biggest killers in developing countries with a death toll of a million

发表于:2018-12-24 / 阅读(82) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Many of the key molecules for life have a specific direction, or handedness: DNA twists to the right, amino acids to the left. Now scientists at the Nation

发表于:2018-12-24 / 阅读(70) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. In 2005, Steven Johnson wrote a book called Everything Bad is Good For You. He proposed that popular culture is actually making us smarter. Because thing

发表于:2018-12-24 / 阅读(63) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If all you have is a hammer, they say that everything looks like a nail. But when you use that hammer, it looks like you are arm to your brain anyway. A

发表于:2018-12-24 / 阅读(77) / 评论(0) 分类 Scientific American(六)月

This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. Senior citizens don't believe the hype, because a new study finds that older folks who accept that seniors' memories get worse do worse on memory tests.

发表于:2018-12-24 / 阅读(65) / 评论(0) 分类 Scientific American(五)月

Benjamin Frankin wondered about(at) lightning. He combined his curiosity with imagination and carried out his well-known experiment to show that lightning and an electric spark are the same thing. Cur

发表于:2018-12-30 / 阅读(225) / 评论(0) 分类 自考英语(一)78讲

currently adv.当前,目前 My dad is currently working as a college professor. 我父亲目前在大学担任教授。 tricky a.狡猾的;微妙的,难以处理的 No one likes to deal with a tricky person. 谁都不喜欢与狡猾的人打交道。

发表于:2018-12-30 / 阅读(79) / 评论(0) 分类 赖世雄进阶英语词汇3500

94 约翰.威斯勒.鲍威尔的一生 PEOPLE IN AMERICA - September 9, 2001: John Wesley Powell VOICE ONE: I'm Shirley Griffith. VOICE TWO: And I'm ray freeman with the VOA special English program pe

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This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? At a crowded party, seems like you will be hard to hear the person you are talking to over all the clinking glasses, the chatter, the laughter but somehow your

发表于:2019-01-07 / 阅读(81) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Members of the jury have you reached verdict? When it comes to making decisions about innocence and guilt, the human brain acts as both judge and jury. N

发表于:2019-01-08 / 阅读(82) / 评论(0) 分类 Scientific American(十二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. M.I.T. scientists have designed a new robot. Youll probably never see it thoughits meant to be hidden. Because its a robot clam. Engineers wanted to de

发表于:2019-01-08 / 阅读(80) / 评论(0) 分类 Scientific American(十二)月

This is Scientific American's 60-Second Science. I'm Rachel Kremen. Got a minute? Researchers have discovered that improving voter turnout tends to result in better decision-makingat least amongst fish. A recent study of stickleback found that they s

发表于:2019-01-08 / 阅读(89) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-Second Science, I am Karen Hopkin. This'll just take a minute. You should talk about your feelings. Do you want to talk about it? We need to talk.Whether its the aftermath of a failed relationship or the horrors of a

发表于:2019-01-08 / 阅读(84) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. For women who are rather well-endowed, working out can sometimes be, well, a bit of a pain. Finding a good sports bra is key, now new research on breast

发表于:2019-01-08 / 阅读(64) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science, I'm Karen Hopkin. This'll just take a minute. With temperatures approaching 100 degrees in the eastern U.S. this week, its amazing that the leaves on the trees dont simply burst into flames. Maybe one

发表于:2019-01-08 / 阅读(72) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science, I'm Karen Hopkin. This'll just take a minute. You've landed a small role in a low-budget horror movie.To get ready,you need to practice your reaction shot, you know, that look you will get when your bo

发表于:2019-01-08 / 阅读(87) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science, I am Karen Hopkin. This'll just take a minute. Youve probably heard of the whole six degrees of separation thing. It predicts that, on average, youre no more than six links away from any other person o

发表于:2019-01-08 / 阅读(104) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science,I'm Christopher Intagliata,got a minute? Benny Goodman earned his title,the king of swing as a virtuoso of the clarinet,but now a computer in upstate New York has learned to rip him off.Researchers at

发表于:2019-01-08 / 阅读(110) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans' 60-Second Science. I'm Chelsea Wald. Got a minute? Vinaigrette dressing: when you shake it little vinegar droplets scatter through the oil, but when you put it down, the droplets merge and the dressing separates. That's

发表于:2019-01-08 / 阅读(76) / 评论(0) 分类 Scientific American(二)月