This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The common method of closing a surgical incision is simply to stitch the patient up. There are some issues, though. Good stitching can be challenging,

发表于:2019-01-08 / 阅读(99) / 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. We can get viruses from the Internet. But can we catch viruses on our cell phones? A new study in the journal Science says yes, but the spread of such ma

发表于:2019-01-08 / 阅读(76) / 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. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(112) / 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. The heart-stopping news from Stockholm is that the heart never stopsgrowing, that is. Because researchers have shown that the human heart continues to pr

发表于:2019-01-08 / 阅读(87) / 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. Thrill-seeking stunt pilots spend years learning to perform maneuvers that birds and bees know how to do from birth. Now a new study in the journal Scien

发表于:2019-01-08 / 阅读(95) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Christie Nicholson . Got a minute? Altruism poses a problem for the theory of survival of the fittest. If we help others at a cost to ourselves, nice-guy behavior should die out, because we are giv

发表于:2019-01-08 / 阅读(94) / 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. It's April 15th. Like many people around the country, you might be feeling your blood pressure rise as you deal with everyone's favorite activityfiling

发表于:2019-01-08 / 阅读(94) / 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. Hard-training athletes boost their performance with a variety of popular sports drinks. These drinks do work. But not in the way youd think. Thats acco

发表于:2019-01-08 / 阅读(92) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? At Antarcticas Blood Falls, the ice is stained red by ancient, iron-rich water pouring out of subglacial lakes formed millions of years ago. The cascading water is e

发表于:2019-01-08 / 阅读(87) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? The new Yankee Stadium has opened in the Bronx. I went to a game Saturday, and its a much friendlier place for anyone trying to eat healthfully and maintain some envir

发表于:2019-01-08 / 阅读(85) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Male chimpanzees often compete aggressively for mates. Now researchers have observed a friendlier behavior that males use to woo potential partners: they exchange meat

发表于:2019-01-08 / 阅读(90) / 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. Coffee before biking? You may have to stop on the side of the road sooner, but new research suggests that caffeine can help you get more bang from your w

发表于:2019-01-07 / 阅读(81) / 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. The Earths original atmosphere would have been unpleasantdeadly in factto any organisms that breathe oxygen. There wasnt any. Not until about 2.4 billi

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

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. It sounds too good to be truehelp kids feel good about themselves, and theyll l do better in school. But it apparently worked for African-American middle

发表于:2018-12-24 / 阅读(71) / 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. Forget Polly wanna cracker. Polly wants to boogie. Or so say scientists in a pair of papers in the April 30th issue of the journal Current Biology. They

发表于:2018-12-24 / 阅读(61) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60-Second Science. Im Adam Hinterthuer. Got a minute? Netflix isnt satisfied with the way its system recommends new movies to customers based on their viewing habits. So the mail-order DVD rental company has offered outsi

发表于:2018-12-24 / 阅读(79) / 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(68) / 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(79) / 评论(0) 分类 Scientific American(四)月

This is scientific Americans 60-Sencond Science. I am Karen Hopkin. This will just take a minute. When you think about silk, you probably think of gossamer fibers woven into lustrous garments or decadently soft bedsheets. But silk is also prized for

发表于:2018-12-24 / 阅读(67) / 评论(0) 分类 Scientific American(四)月

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(59) / 评论(0) 分类 Scientific American(四)月