This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Doctors prescribe Ritalin to hyperactive kids to calm them down and increase their attention span. And college kids have taken to using Ritalin to concentrate

发表于:2019-01-08 / 阅读(74) / 评论(0) 分类 Scientific American(七)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(98) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. It took 13 years and countless hours of research to unravel the human genome. Now neuroscientists want to do their fields version. A small group of rese

发表于:2019-01-08 / 阅读(92) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-second Science, I am Karen Hopkin. This'll just take a minute. Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from a variety of sources, including fossil fuel production and even

发表于:2019-01-08 / 阅读(66) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. Imagine tweezers so fine that you could reach right into a cell and manipulate individual molecules. MIT researchers have created such a tweezer, using

发表于:2019-01-08 / 阅读(73) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. Whales and dolphins were molded by evolution to glide through water. Weve been trying to create streamlined designs ourselves for structures such as win

发表于:2019-01-08 / 阅读(96) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? After a bad day at the office, were more likely to flip on a nature channel than find a flower-filled meadow or sunny beach to lower our stress. But if you cant head

发表于:2019-01-08 / 阅读(83) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Dear diary: today I ate 3 carrot sticks while I fantasized about eating carrot cake. Alright, alright, I ate 3 pieces of carrot cake, and never once consid

发表于:2019-01-08 / 阅读(68) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. On the June 30th podcast, you heard some bad singing. Clearly a lot of people think they can sing, just look at the enormous crowds that show up to auditio

发表于:2019-01-08 / 阅读(93) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? In the insect world, bright reds, oranges and yellows can be a warning: Eat me at your own risk, pal. Because colorful bugs can be toxic, they often get their

发表于:2019-01-08 / 阅读(85) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. In 2005 two scientists won a Nobel Prize for discovering that a bacterium called Helicobacter pylori causes most stomach ulcers. One of them even chugged a

发表于:2019-01-08 / 阅读(72) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science,I'm Steve Mirsky,got a minute? Our Milky Way galaxy produces only about 10 new stars annually. But a galaxy far, far away is experiencing a major baby boom. Its pumping out up to 4,000 new stars a year,

发表于:2019-01-08 / 阅读(78) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science, I am Karen Hopkin.This'll just take a minute. Counting is one of the first things we teach our kids. I mean, every parents probably said, You had better be in that bed by the time I count to three. Fol

发表于:2019-01-08 / 阅读(91) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. You may have heard of genetic research being done in Iceland. Its a rich venue, because Icelanders have a limited gene pool and highly detailed genealogi

发表于:2019-01-08 / 阅读(88) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. Not too long ago, scientists had to hoof it to the library to review the literature. And they had to flip through a card catalog to find that dusty old v

发表于:2018-12-24 / 阅读(53) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science, I'm Steve Mirsky. Got a few minutes? Today we have a special edition featuring a brief interview with Sciam editor, Steve Ashley. Steve Ashley, a lot of people are very concerned about oil right now, b

发表于:2018-12-24 / 阅读(57) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science. Im Karen Hopkin. Itll just take a minute. When you think about an ecosystem, you usually think of the big animals that live there. The Serengetis ruled by lions. And estuaries are populated by fishes,

发表于:2018-12-24 / 阅读(62) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science, I'm Cynthia Graber. This'll just take a minute. Remember when Barbie whined that math is hard. Maybe you got annoyed at hearing a popular female doll say that to little girls. Or maybe you also had a n

发表于:2018-12-24 / 阅读(70) / 评论(0) 分类 Scientific American(七)月

Podcast is sponsored from the people of American Chemistry who provide the plastics, medicines and innovations that make life modern. Learn more at americanchemistry.com. This is Scientific American's 60-Second Psych. I'm Christine Nicholson, got a m

发表于:2018-12-24 / 阅读(64) / 评论(0) 分类 Scientific American(七)月

Podcast is sponsored from the people of American Chemistry, who provide the plastics, medicines, and innovations that make life modern. Learn more at americanchemistry. com. This is Scientific American's 60-Second Science, Im Karen Hopkin. This will

发表于:2018-12-24 / 阅读(60) / 评论(0) 分类 Scientific American(七)月