单词:free electron deusity
单词:free electron deusity 相关文章
efficiency-效率,功效 elaborate -精心计划的,详尽的 elastic -橡皮圈,松紧带 elbow -肘,肘部 elderly-较老的,年长的 elect -选举,推举 electrical -电的,电气科学的 electron-电子 electronic -电子的 elegant -优美的,文雅的 element -元素,要素 elementary-基本的,
In the square outside the British Library in London is a sculpture of Sir Isaac Newton - The first man who asked why apples seem always to fall towards the centre of the earth. Maybe they chose it for the spot because it shows a great scientist at wo
OK, great, we smell vibrations. How? All right? 好吧,我们闻到的是震动。怎么闻到呢? Now when people ask this kind of question, they neglect something, which is that physicists are really clever, unlike biologists. 当人们问这个问
This is Scientific American's 60-Second Science. I'm Sophie Bushwick. Got a minute? The shortest distance between two points may be a straight line, but try telling that to electrons: when current flows down a wire, these particles zig and zag, movin
老板Tom打电话给秘书Susan. Tom: (On the phone) Hey Susan, how are things at the office? S: Oh, hi boss. Things are fine. But...aren't you supposed to be on a plane right now? I booked you on a 9:30 flight out of Hong Kong. T: Um...Yeah. I shou
老板Tom的班机因为台风来袭而停飞,从机场打电话给秘书Susan布置工作。 Tom: And if you don't mind, call our factory in China and see if things are OK there. I'm worried about flooding. S: Sure thing, boss. T: I'll tell you wh
老板Tom的班机因为台风来袭而停飞,Tom从机场打电话给秘书Susan,了解公司在中国的工厂有没有受到台风的破坏。 (Phone rings) T: Susan? S: Yes? T: It's bad news. All flights for the rest of the day have been canc
Three Scientists Win Nobel Prize in Chemistry Three scientists have won the Nobel Prize for chemistry for their work to simplify and improve the imaging of biomolecules. 三位科学家因为在简化和改善生物分子成像方面的成就获得了诺
By Mil Arcega Washington, DC 13 September 2006 watch Kalamazoo Promise The promise of a free college education has brought about a remarkable economic turnaround for the U.S. Midwestern city of Kalamazoo in the state of Michigan. The city had fallen
[0:0]efficiency效率,功效 [0:12.1950]elaborate elastic elbow elderly精心计划的,详尽的 橡皮图,松紧带 肘,肘部 较老的,年长的 [1:2.6076]elect electrical electron选举,推选 电的,电气科学的 电子 [1:41.1372]electronic elegant element elementary [2:36.2790]el
But this still doesn't explain why light is able to pass through glass rather than being absorbed as with most solids. 但是这还是不能解释为什么光可以穿透玻璃而不是像其他大多固体那样被吸收。 For that, we need to go a
你有没有经历过这样一种状况?明明没有人打你电话,却总是感觉听到手机铃声响。这种就被称作手机幻听:ringxiety。 The term is formed from the words ringtone and anxiety. Ringxiety refers to the sensation and
Adrienne: So, Lisa, I see your suitcase out. You are going on a trip? Lisa: I am. I'm going to Taiwan on a business trip. Adrienne: A business trip. How do you feel about taking business trips? Lisa: Sometimes I love business. I love getting out of t
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
Finally, in 1926, Heisenberg came up with a celebrated compromise, producing a new discipline that came to be known as quantum mechanics. At the heart of it was Heisenberg's Uncertainty Principle, which states that the electron is a particle but a pa
Neutrons and protons occupy the atom's nucleus. The nucleus of an atom is tinyonly one millionth of a billionth of the full volume of the atombut fantastically dense, since it contains virtually all the atom's mass. As Cropper has put it, if an atom
The Microscopic Technique Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible light microscope late in the sixteenth cen