This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Tricky cyclists in the Tour de France sometimes cheat by upping their red blood cell count for those tough stretches through the Alps. But researchers at Calif

发表于:2018-12-24 / 阅读(61) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science. I am Cynthia Graber. This will just take a minute. Brains can register a foods caloric value independent of our taste buds, say scientists from Duke University and from Portugal. First the scientists e

发表于:2018-12-24 / 阅读(89) / 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. Sometimes a bit of bacteria can be just what the doctor ordered. If you prize yogurt for its active cultures, you know what Im talking about. Now a new s

发表于:2018-12-24 / 阅读(93) / 评论(0) 分类 Scientific American(九)月

If you could add cells anywhere in your body, you might pick your brain. More brain cells should make you smarter, right? Well, a new study shows that they might just make you fatter. Becauseanimals that make new nerve cells in a brain region that co

发表于:2018-12-24 / 阅读(59) / 评论(0) 分类 Scientific American(五)月

They say that who you hang out with says a lot about who you are. Well, the microbes that hang out on your fingers can point to exactly who you are. Because scientists at the University of Colorado in Boulder have been able to identify individuals ba

发表于:2018-12-24 / 阅读(75) / 评论(0) 分类 Scientific American(三)月

A nightlight may keep those monsters under the bed. But it may also open the door to the blues. Because a new study reveals that animals exposed to light all night long show signs of clinical depression. If you have access to electricity, you no doub

发表于:2018-12-24 / 阅读(78) / 评论(0) 分类 Scientific American(十)月

Exposure to peanuts can be deadly to people with an allergy. But heres a finding that could start to thwart the peanut threat: peanuts that are dry roasted may be more likely to trigger an allergic reaction than do their raw counterparts. At least th

发表于:2019-01-02 / 阅读(79) / 评论(0) 分类 英伦广角

(9) If you can not stand the heat, get (或 stay) out of the kitchen. 这句话,是过去美国总统 Harry Truman 的名言。意思是:如果你不能忍受炎热高温,你就应该离开厨房。

发表于:2019-01-04 / 阅读(82) / 评论(0) 分类 英文名句短语

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. We all know people who are completely unflappable, able to remain calm in the face of total calamity. Dont you just hate those people? Well, a new study

发表于:2019-01-08 / 阅读(71) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Animals that live in cold climates tend to have stubby limbsshorter arms and legseven smaller ears and tails. Picture a penguin and youll see what I mean

发表于:2019-01-08 / 阅读(85) / 评论(0) 分类 Scientific American(十二)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Maybe your dad said, The harder you work for something, the more youll appreciate it. Well, father really did know best, because a new study finds that the

发表于:2019-01-08 / 阅读(108) / 评论(0) 分类 Scientific American(十一)月

This is Scentific American's 60-Second Science, I'm Steve Mirsky, got a minute? At Point Reyes National Seashore in Marin County, California, a plant called Tidestroms lupine is holding on for dear life. Its survival has been threatened by the appear

发表于:2019-01-08 / 阅读(76) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science. I'm Christie Nicholson. Got a minute? We know someone is in pain just by looking at their face. Winced eyes, grimacing smile. I mean we recognize it immediately. But can we see pain in non-human faces?

发表于:2019-01-08 / 阅读(97) / 评论(0) 分类 Scientific American(五)月

Food is the body's fuel. Now a study finds that the amount of energy in that fuel can depend not just on its calorie contentbut on how it's prepared. And the research, published in the Proceedings of the National Academy of Sciences, could explain an

发表于:2019-01-08 / 阅读(79) / 评论(0) 分类 Scientific American(十一)月

The early bird gets the worm, and may avoid skin cancer. Because a new mouse study suggests that for humans, tanning in the mornings may be less likely to permanently damage in DNA and cause skin cancer. A mouses levels of the DNA repair protein XPA

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

Plants that use animals to disperse their seeds can find themselves in a pickle: They need to make fruit tasty enough to entice the local fauna, but they also need to make sure that their animal asssistants don't digest the very seeds that are meant

发表于:2019-01-08 / 阅读(99) / 评论(0) 分类 Scientific American(六)月

LAKSHMI SINGH, HOST: Ticks are known to carry Lyme disease. You probably already know that. But there are about a dozen other diseases carried by ticks that are cropping up and spreading across this country. It's part of a trend around the world. Ove

发表于:2019-01-16 / 阅读(98) / 评论(0) 分类 2017年NPR美国国家公共电台3月

The Scarecrow and the Woodman now began to fasten the mice to the truck, using the strings they had brought. 接着稻草人和铁皮人就用田鼠们带来的绳子,把它们联结在大车上。 One end of a string was tied around the neck of ea

发表于:2019-01-26 / 阅读(68) / 评论(0) 分类 绿野仙踪.The.Wizard.Of.Oz

If we walk far enough, said Dorothy, I am sure we shall sometime come to some place. 如果我们不停地走,多萝茜说,我相信,我们一定会在某一个时候,走到翡翠城。 But day by day passed away, and they still saw nothing b

发表于:2019-01-26 / 阅读(76) / 评论(0) 分类 绿野仙踪.The.Wizard.Of.Oz

HEALTH REPORT -June 12, 2002: Lutein By Nancy Steinbach (Picture -Laretta Geren) This is the VOA Special English Health Report. Recent research has suggested that a nutrient called lutein (LOO-teen) m

发表于:2019-01-30 / 阅读(83) / 评论(0) 分类 健康与环境