SSS 2009-08-05
时间:2019-01-08 作者:英语课 分类:Scientific American(八)月
This is Scientific American's 60 Seconds Science. I'm Steve Mirsky. Got a minute?
In 1900 legendary 1 physicist 2 Max Planck described the way energy gets dissipated from any nonreflective object, called a blackbody. But even Max said if something else is really, really close to the object, his law might not hold.
Now physicists 3 from M.I.T. have finally shown that if you can get another object near enough to the blackbody, but still not touching 4 it, Planck’s blackbody radiation law really does break down. Which is good news for you.
The reseachers had been able to put flat plates a millionth of a meter apart. Which was still too far away to see any effect. But with glass beads 5, they achieved separations of only 10 billionths of a meter. And the radiation flow was up to a thousand times greater than Planck’s law predicts. The study appears in the August issue of the journal Nano Letters.
It’s good news because of potential applications. For example, computer data storage and solar energy devices are all less efficient because of heat buildup. If tinier distances can be achieved in these real-world devices, such waste could be made to walk the plank 6.
Thanks for the minute, for Scientific American's 60 Seconds Science. I'm Steve Mirsky.
- Legendary stories are passed down from parents to children.传奇故事是由父母传给孩子们的。
- Odysseus was a legendary Greek hero.奥狄修斯是传说中的希腊英雄。
- He is a physicist of the first rank.他是一流的物理学家。
- The successful physicist never puts on airs.这位卓有成就的物理学家从不摆架子。
- For many particle physicists, however, it was a year of frustration. 对于许多粒子物理学家来说,这是受挫折的一年。 来自英汉非文学 - 科技
- Physicists seek rules or patterns to provide a framework. 物理学家寻求用法则或图式来构成一个框架。
- a necklace of wooden beads 一条木珠项链
- Beads of perspiration stood out on his forehead. 他的前额上挂着汗珠。