Vaccine makers crack the eggshell and inject the virus into the white stuff surrounding the yolk. Then they reseal the egg, the embryo becomes infected, and the virus is allowed to copy itself trillions of times over. And they use eggs because eggs a...
Motional Induction 电磁感应 Last time, we talked about motional induction, a phenomenon by which the ocean generates a magnetic field. 上次，我们提到过动生电磁感应：海洋产生磁场的一种现象。 It works like this: earth has...
Microneedles 微针疗法 Female: From fluvaccines to tetanus boosters, injections are a must in modern medicine. But do they always have to make you say Ouch? 从流感疫苗到破伤风针，注射（的方式）在现代医学中是不可或缺的。...
Supertasters Beware! 品尝师们要注意啦！ You may have heard of supertasters. These are people who, it was discovered, are carrying around extra taste buds on their tongues, making the world of eating much more intense. 你可能也听过有这样...
Why the Earth Is Round? 地球为什么是圆的？ Our never-thought to ask question for today is: Why is the earth round? Why not a cube? A cube? No, that's silly. Is it? Why? 今天，我们从未想过的问题是：地球为什么是圆的？为什...
Are Tanning Beds Safe? 日光浴床安全吗？ Millions of people go to tanning salons, some to get a base tan before they go away on a beach vacation. The idea of the base tan is that it will protect you from burning on your sun excursion, so that...
Organic Pollutants 有机污染物 Yes,eating organic foods is a great way to reduce the amount of pollutants in your body, but you can't entirely escape pollution, no matter where you live. 选择有机食物大大减少了污染物进入体内，但是...
Forensics 辩论术/ 法医学 A murder has been committed. The scene of the crime is a secluded area. There were no witnesses, and the body is considerably decayed. 有一场凶手案。凶案现场是一个隐蔽的地方，没有目击证人，尸体...
Sunrise or Sunset? 日出还是日落？ Ya?l: Don? 唐？ Don: Yes, Ya?l? 怎么了，亚尔？ Y: We've been in this art museum for 5 hours now. And you've spent the whole time staring at that one photograph of sunset. 我们都已经在这个美术博...
As the Sun Turns 太阳也在自转？ Everyone knows that the earth turns. 大家都知道地球会自转。 As a matter of fact, the sun turns too. Altough a lot of people don't realize it. 实际上，太阳也会自转。尽管很多人并不知道...
