标签:威力无限 相关文章
单词词意 helpfula.(to)有帮助的,有益的,有用的 helplessa.无助的,不能自立的;不由自主的 hemispheren.半球 henn.母鸡 hencead.从此,今后;因此 henceforthad.今后 herpr
分集介绍:三角函数的历史起源是几何,但是,大师欧拉用分析的办法,得到了正弦函数、余弦函数的又一个定义方法无穷级数和。课上,教授向我们讲解了如何把某类函数展开成为一个无穷
Once again, North Korea has defied international demands to give up its nuclear and missile programs. They're illegal, as far as the United Nations is concerned. They're a right as far as North Korea is concerned. And the communist country said on Su
That English exam was a real killer. 那英语考试真的难的不得了。 killer有杀手的意思,在俚语中可表示威力巨大或非常困难的事物;killer也可作形容词,表示棒极的,威力巨大的,极为困难的。 He has
Its time to go again to the A Moment of Science mailbag. A listener writes: 又到阅读《科学一刻》栏目来信的时间了。其中一个听众来信说: Dear A Moment of Science, 亲爱的《科学一刻》栏目组, Ive heard that ownin
The Power Of Cute Its time to go again to the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive heard that owning a dog or cat can be a good way to deal with stress and ward off depression. So I was wonderingis it interact
In response to Chinas efforts in investigating anti-trust violations, major auto makers are slashing their vehicle and components prices. Chrysler announced on Tuesday that it lowered prices for two Cherokee models, by 45 thousand and 65 thousand yua
What this means in practice is that you can never predict where an electron will be at any given moment. You can only list its probability of being there. In a sense, as Dennis Overbye has put it, an electron doesnt exist until it is observed. Or, pu
To explain what kept atoms together, other forces were needed, and in the 1930s two were discovered: the strong nuclear force and weak nuclear force. The strong force binds atoms together; its what allows protons to bed down together in the nucleus.
Quantum theory is very worthy of regard, he observed politely, but he really didnt like it. God doesnt play dice, he said. Or at least that is how it is nearly always rendered. The actual quote was: It seems hard to sneak a look at Gods cards. But th
It seemed as if there was no end of strangeness. For the first time, as James Trefil has put it, scientists had encountered an area of the universe that our brains just arent wired to understand. Or as Feynman expressed it, things on a small scale be
As it was, the Europeans had their hands full trying to understand the strange behavior of the electron. The principal problem they faced was that the electron sometimes behaved like a particle and sometimes like a wave. This impossible duality drove
It was while puzzling over this problem that Bohr was struck by a solution and dashed off his famous paper. Called On the Constitutions of Atoms and Molecules, the paper explained how electrons could keep from falling into the nucleus by suggesting t
As physicists began to delve into this subatomic realm, they realized that it wasn't merely different from anything we knew, but different from anything ever imagined. Because atomic behavior is so unlike ordinary experience, Richard Feynman once obs
Lesson Introduction A last will and testament is very important to help take care of a person's family after they have passed. In this lesson we show how this person has formally made a last will.