单词：relativistic solar protons
单词：relativistic solar protons 相关文章
So if you popped open the blueberry and were searching for the nucleus 如果你在蓝莓的内部搜索原子核，结果是一无所获。 You know what? It would be invisible. It's too small to see! 知道为什么吗？因为我们看不到它！它
TED演讲教育篇
You probably already know everything is made up of little tiny things called atoms 你也许已经知道所有的东西都是由微小的原子组成。 You might even know that each atom is made up of even smaller particles called protons, neutrons
TED演讲教育篇
[00:00.00]Lesson 4 Atom [00:01.95]原子 [00:03.89]The really strange thing about atoms is that most of us will never see one. [00:08.87]原子最奇特之处在于绝大多数人永远也无法看到它。 [00:13.84]Atoms are so small that it's impo
赖世雄学英语第四册
It's been tried all over the world, and teachers sort of stand back and say, It just happens by itself? 在世界各地尝试过，老师们后退着说：它就这么自己发生了？ And I said, Yeah, it happens by itself.How did you know that? 我说
TED演讲教育篇
Part I Lost in the cosmos 第一章 如何营造一个宇宙 They're all in the same plane.They're all going around in the same direction. . . . 它们都处于同一平面。 它们都在沿同一方向转动...... It's perfect,you know. It's gorgeo
万物简史
DEVELOPMENT REPORT – How to Make a Solar Water Heater By Gary Garriott Broadcast: Monday, November 29, 2004 I'm Gwen Outen with the VOA Special English Development Report. Solar water heaters save o
农业与发展
SCIENCE IN THE NEWS - Polio Vaccine Ban in Parts of Nigeria / Safety Laws Urged for India / Two More Elements? By Broadcast: Tuesday, March 02, 2004 (THEME) VOICE ONE: This is SCIENCE IN THE NEWS, in
科技之光
From Sunday, smoking is banned in Beijing's taxis. The Green Taxi campaign is part of the city's efforts to ensure a smoke-free Olympic Games next year. No smoking signs will be put up in all of Beijing's 66,000 taxis. Drivers who are caught smoki
英语新闻视频
By Paul Sisco Washington, D.C. 19 July 2007 Silicon Valley in northern California originally referred to the corporate homes of silicon chip innovators and manufacturers, and the high tech businesses in the San Francisco Bay area. Today that region i
2007年VOA标准英语（七月）
By Katherine Cole Washington 25 July 2007 The city of Taos, New Mexico, was known as the Solar Capitol of the World long before then-Governor Gary Johnson officially made that declaration in 1997. The high desert altitude of over two kilometers and c
2007年VOA标准英语（七月）
India seems to excel at making things smaller and cheaper. The $2,500 car and the $35 computer are just two of the country's latest innovations. Now, India increasingly is focused on low-cost solar technology. The front lines of that effort are seen
VOA标准英语2010年(十)月
The calculations focus on a strange quality of all matter. It's one that defies common sense. But it's fundamental to the work of Astrophysicists like professor Douglas Leonard. Solidity is an illusion. If I run up with my fist and punch a burg wall,
探索与发现2015年
The Nucleus Don: A guy walks into a bar, and sits down next to an electron . The electron has two empty beers in front of him, and was working on a third. My life is a worst, says electron . I just got fired from my job, my dog bit me, my wife left w
英语听力文摘 English Digest
The structure of atoms and the significance of protons will come in a following chapter, so for the moment all that is necessary is to appreciate the organizing principle: hydrogen has just one proton, and so it has an atomic number of one and comes
万物简史
Carbonation Has a Taste In a study in the journal Science, researchers found that the taste buds for sensing sour also respond to carbonated beverages, because the fizz gets turned into chemical components, one of which is protons--basically simple,
60秒科学
By Paul Sisco Washington 22 October 2007 Twenty college and university teams from around the world competed inthe recentSolar Decathlon that is held every two years in Washington, D.C. The U.S. Energy Department sponsors the event, and this year's wi
2007年VOA常速英语（十月）
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.
万物简史
Do you appreciate the small things in life? In physics, infinitely small things are problematic. If a structure can be infinitely divided into smaller parts, can there be such a thing as a smallest possible space or does this division go on eternally
英语听力精选进阶版
Let us pause for a moment and consider the structure of the atom as we know it now. Every atom is made from three kinds of elementary particles: protons, which have a positive electrical charge; electrons, which have a negative electrical charge; and
万物简史