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2019年科学美国人4月

  • 科学美国人60秒 SSS 一个用于形容今天的词 Iktsuarpok. If youve ever called in a pizza order and then stepped out the door a couple of times to see if the delivery guy was there yet, well, youve experienced iktsuarpok. Its an Inuit word that refers to the anticipation one feels when waiting f
  • 科学美国人60秒 SSS 睡眠不平衡不利于调节血糖平衡 WeekdayWeekend Sleep Imbalance Bad for Blood Sugar Regulation Few things are more satisfying than sleeping late on weekends. But though the extra zs may improve your mood, they do not appear to improve your health. Because a new study shows that so-c
  • 科学美国人60秒 SSS 电脑对纽约市很敏感 Computers Turn an Ear on New York City No wonder they call New York the city that never sleeps. In fact, noise is one of the biggest civic complaints made by denizens of the Big Apple. Now, a project that uses citizen science and artificial intellige
  • 科学美国人60秒 SSS 城市土狼的进化有利于勇敢者 Urban Coyote Evolution Favors the Bold Coyotes are now common residents of many large urban areas. And while it doesn't happen all that often, coyotes are increasingly coming into conflict with people and pets. They're these mid-sized carnivores, [th
  • 科学美国人60秒 SSS 美白牙条会改变牙齿中的蛋白质 Whitening Strips Alter Proteins in Teeth Of all the stuff you can buy on eBay - here's a new one: human teeth. I think I probably averaged maybe $5 a tooth. Kelly Keenan, a biochemist at Stockton University in New Jersey. Keenan chased down the chomp
  • 科学美国人60秒 SSS 鸡能教会声学研究者什么呢 What Chickens Can Teach Hearing Researchers Its the truth for all of our senses that they are there to convert physical energy in the surrounding world into electrical responses, which are the common currency that the nervous system uses. 我们所有的
  • 科学美国人60秒 SSS 真假难辨 Gluten-Free Restaurant Foods Are Often Mislabeled A lot of restaurant menus these days have gluten-free options. Problem is, many of the dishes may not be gluten-free at all. 现在很多餐馆的菜单上都有无谷蛋白的选项。问题是,许多
  • 科学美国人60秒 SSS 4/20交通事故索赔得到控制 4/20 Traffic Accidents Claim Curbed A year ago I reported on a study about an increase in fatal traffic accidents on April 20th, 4/20a date considered somewhat of a holiday by marijuana aficionados. That study was in the journal JAMA Internal Medicin
  • 科学美国人60秒 SSS 土狼社会等级 Hyena Society Stability Has Last Laugh Turns out that for hyenas, it' not what you know, but who you know. 事实证明,对于土狼来说,重要的不是你知道什么,而是你认识谁。 Spotted hyenas live in large, mixed-sex clans, with
  • 科学美国人60秒 SSS 蜜蜂可以做加减法呢 Honeybees Can Put Two and Two Together It takes a big braina human brainto do math. Or so you might assume. But scientists have found that other animals, such chimpanzees, monkeys, and even pigeons can perform some addition and subtraction. Now new r
  • 科学美国人60秒 SSS 河豚声域更广 River Dolphins Have a Wide Vocal Repertoire Freshwater dolphins live in many of the world's biggest rivers, from the Amazon to the Ganges, and they differ in many ways from their better-known oceangoing cousins. They have a flexible neck. They have d
  • 科学美国人60秒 SSS 压缩钾原子横跨液体和固体 Squeezed Potassium Atoms Straddle Liquid and Solid There's solid. And there's liquid. And now there's something in between called chain melt. 有固体。有液体。现在中间有一种中间物质叫做链熔体。 At an atomic level you have this
  • 科学美国人60秒 SSS 工作努力的蛇 蛇液毒性更强 Harder-Working Snakes Pack Stronger Venom Movies like Raiders of the Lost Ark, Snakes on a Plane and even Harry Potter and the Chamber of Secrets have all relied on the fear of snakes to build suspense and anxiety. About a third of all people are at
  • 科学美国人60秒 SSS 菠萝果皮也是宝 This is Scientific American 60-Second Science. I'm Debbie Ponchner. 这里是科学美国人60秒科学。我是黛比庞彻纳。 Pineapplesjust thinking about this delicious tropical fruit, rich in vitamin C, might make your mouth water. But have y
  • 科学美国人60秒 SSS 你可能错过的全球科学要闻 Hi, I'm Scientific American podcast editor Steve Mirsky. And here's a short piece from the August 2018 issue of the magazine, in the section called Advances: Dispatches from the Frontiers of Science, Technology and Medicine. 大家好,我是《科学
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