This is Scientific American's 60-Second Science. I'm John Matson. Got a minute? In a laboratory vault outside Paris is a small cylinder of platinumiridium alloy that serves as the standard for all mass measurements worldwide. By an 1889 international

发表于:2018-12-24 / 阅读(87) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans 60 second Science, I am Sophie Bushwick, Got a minute? Music, film and video game makes face a new online, digital world. And some are testing a revolutionary pricing system: pay what you want. But a new study finds that

发表于:2018-12-24 / 阅读(59) / 评论(0) 分类 Scientific American(四)月

This is Scientific American 60 Second Science, I am Mariette DiChristina. Got a minute? Maybe you've heard that sound. It's an Orca, a killer whale. We know that whales have a kind of language. Families and closely related groups even share dialects.

发表于:2018-12-24 / 阅读(58) / 评论(0) 分类 Scientific American(二)月

This is Scientific American 60 second Science, I am Christopher Intagliata, got a minute? It's no secret cigarettes can yellow your teeth. But tobacco smoke has another, unseen effect. It can wipe out the healthy bacteria in your mouth, leaving the f

发表于:2018-12-24 / 阅读(71) / 评论(0) 分类 Scientific American(二)月

This is Scientific Americans 60 Second Science, I am Cynthia Graber, this will just take a minute. Compounds found in the herb thyme have antibiotic properties. Now scientists have demonstrated that thyme might have a future role in fighting acne. A

发表于:2018-12-24 / 阅读(124) / 评论(0) 分类 Scientific American(三)月

This is Scientific Americans 60 second Science, I am Christopher Intagliata, got a minute? You've probably had the feeling. Your running shoes are pounding the pavementthen suddenly your pain fades away, and you're feeling euphoric. The runner's high

发表于:2018-12-24 / 阅读(91) / 评论(0) 分类 Scientific American(三)月

You've probably heard of peanut or shellfish allergies,but a meat allergy,not as common. Even weird * will might be causing it, tick bites.According to a study in the journal of General Internal Medicine. A few years back, folks started showing up in

发表于:2018-12-24 / 阅读(74) / 评论(0) 分类 Scientific American(七)月

This is Scientific American 60-second science.I'm Sophie Bushwick.Got a minute? It's not easy being yellow.But as now is face two separated con?? demix which threaten the pluck the fruit off x tables.Fortunately,reseachers have now x banana's DNA,pro

发表于:2018-12-24 / 阅读(73) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. To many who stare up at the heavens, the stars may seem simply uncountable. Of course that's not the attitude of astronomers. But they've made a discov

发表于:2019-01-08 / 阅读(92) / 评论(0) 分类 Scientific American(十二)月

This is Scientific American, 60-second science. I'm Cynthia Graber.This will just take a minute. When an animal faces a predator, its senses go into overdrive. So scientists wondered, could human anxiety be an evolutionary legacy to protect us agains

发表于:2019-01-08 / 阅读(90) / 评论(0) 分类 Scientific American(四)月

This is Scientific American 60 Second Science, I am Cythia Graber, this will just take a minute~ Many Christians give up meat for Lent, a practice that indirectly affectshyenas, believe it or not. In northern Ethiopia, hyenas have become accustomed t

发表于:2019-01-08 / 阅读(101) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's Sixty Second Science. I am Marryia Decrisdina, got the minute. First Youtube Space Lab contest has anounced its winners, young people entry by creating a short vedio of their idea for experiments to be down in space. I w

发表于:2019-01-08 / 阅读(68) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60 Second Science, I'm Karen Hopkin As voters vacillate among the contenders for the Republican nomination, it may matter less what the candidates say than how they sound when they say it. Because a new study shows that v

发表于:2019-01-08 / 阅读(94) / 评论(0) 分类 Scientific American(三)月

It sounds like the premise for a bad police drama, maybe NYPD Chimp. But scientists have found that high-ranking chimpanzees can act like cops: intervening to settle public disputes. The study appears in the journal Public Library of Science ONE. In

发表于:2019-01-08 / 阅读(114) / 评论(0) 分类 Scientific American(三)月

After a hurricane or earthquake, people often band together and cooperate to deal with the recovery. And were not the only species that becomes more cooperative in tough times.Female Yuhina birds in Taiwan usually fight over space in the community ne

发表于:2019-01-08 / 阅读(89) / 评论(0) 分类 Scientific American(六)月

City kids have smorgasbord of food choices. But they also face food allergies more than do their country cousins. Researchers mapped food allergies in children across the U.S. And they found more cases per capita in areas with high population densiti

发表于:2019-01-08 / 阅读(103) / 评论(0) 分类 Scientific American(六)月

This is Scientific American 60 second Science, I am Cynthia Graber, got a minute? Now's a great time to break out that backyard telescope. Because Saturday, March 3, is the Mars opposition. It's one of the times that the Earth and Mars pass the close

发表于:2019-01-08 / 阅读(93) / 评论(0) 分类 Scientific American(三)月

This is scientific Americans, 60 second science, I'm Sarah Fecht. Got a minute Thats not a bird whistling. This sound was recorded 2000 feet below the oceans surface. Scientists postulated decades ago that deep-sea animals might use sound to navigate

发表于:2019-01-08 / 阅读(86) / 评论(0) 分类 Scientific American(二)月

How healthy are you? Your best guess might be pretty accurate: Researchers found that people who gave their health a positive rating were less likely to fall ill or die over the next 30 years than were those who thought they werent as healthy. The wo

发表于:2019-01-08 / 阅读(86) / 评论(0) 分类 Scientific American(二)月

This is Scientific Americans 60 second Science. I'm Sophie Bushwick. Got a minute. Champane, do you drink it out the narrow flute or the the broader, more shallow coupe ? You may notice that your perception of the buble wine chaneled gas escaped from

发表于:2019-01-08 / 阅读(75) / 评论(0) 分类 Scientific American(二)月