A Century of Memories(1940-1949)

A Century of Memories (1940-1949) On the first Sunday in December 1941, Americans were doing what Americans did on any normal Sunday.

赖世雄学英语第四册 lesson 4

[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

雅思听力场景词汇:化学词汇

雅思听力场景词汇:化学词汇 在雅思听力考试场景中，化学相关的场景的词汇较为生涩，平时生活中可能也运用得比较少，以下的词汇供大家参考喔。 molecule 分子 particle 粒子 ion 离子 particle

2018年CRI Cultural localization key to promoting Chinese culture overseas

A senior Chinese diplomat has suggested that efforts to localize Chinese culture overseas have been successful and beneficial. Our correspondent in southern Africa Gao Junya has the details. At the JJ Auditorium in Mauritius, a gala named The Charm o

新编英语教程第三册Unit06

Unit 6 TEXT I Atomic Cars Text Every motorist dreams of a car of the future that does not have to be refuelled every few hundred miles, a car that will cost little to run because there is no outlay on

SSS 2008-03-06

This is scientific Americans 60 Second Science. I'm Steve Mirskey. Got a minute? The lure of gold can be electric to some people even though the element is chemically inert on the large scale. But the researchers from Georgia Tech report that down at

英语晨读：这个时代的悖论

We have bigger houses and smaller families; more conveniences, but less time; we have more degrees, but less common sense; more knowledge, but less judgement; more experts, but more problems; more medicine, but less wellness. We have multiplied our p

Paradox of Our Times

We have multiplied our possessions, but reduced our values. We talk too much, love too little and lie too often. We've learned how to make a living, but not a life; we've added years to life, not life to years. We have taller buildings, but shorter t

TED演讲:为什么玻璃是透明的(2)

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

英语中表示倍数减少的方法

(一)a is n times as small (light，slow，)as b. a is n times smaller (lighter， slower，) than b. 以上两句均应译为：a的大小(重量，速度，)是b的1/n[或a比b小(轻，慢，)(n-1)/n]. e.g. The hydrogen atom is near1y l6 times as

表示倍数减少的翻译法

英语中表示倍数减少的表达方法(一)a is n times as small (light，slow，)as b. a is n times smaller (lighter， slower，) than b. 以上两句均应译为：a的大小(重量，速度，)是b的1/n[或a比b小(轻，慢，)(n-1)/n]. e.g

公众人物毕业演讲 第167期:比尔·奈马萨诸塞大学2014(14)

And you know why?. 知道为什么吗。 No one knows why. 没人知道为什么。 If a umass Lowell engineer. 如果马萨诸塞大学洛厄尔分校的。 Or scientist can figure it out. 某位工程师或科学家能够弄清。 He or she may be

经济学人82:基础物理 反物质研究突飞猛进

Science and Technology Fundamental physics Antimatter of fact 科技 基础物理 反物质研究突飞猛进 Researchers at CERN have held on to anti-atoms for a full quarter of an hour 欧洲核子研究中心的科研人员让反原子颗粒存在时

万物简史 第141期:基本物质(13)

Fortunately more sober types were at work elsewhere. In 1808, a dour Quaker named John Dalton became the first person to intimate the nature of an atom (progress that will be discussed more completely a little further on), and in 1811 an Italian with

万物简史 第147期:基本物质(19)

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

IBM制作出世界上最小的电影

WASHINGTON, May 1 (Xinhua) -- Scientists from IBM on Wednesday unveiled the world's smallest movie, made with one of the tiniest elements in the universe: atoms. Named A Boy and His Atom, the movie used thousands of precisely placed atoms to create n

“笨手笨脚”怎么说

俗话说：一母生九子，九子各不同。这句话在我邻居家孩子的身上体现得淋漓尽致。大女儿心灵手巧，做什么像什么；而二女儿却刚好相反，总是笨手笨脚。All thumbs就用来形容她这种笨手笨脚

万物简史 第203期:威力巨大的原子(17)

Meanwhile the tireless Rutherford, now back at Cambridge as J. J. Thomson's successor as head of the Cavendish Laboratory, came up with a model that explained why the nuclei didn't blow up. He saw that they must be offset by some type of neutralizing

如何表达心事重重?

1.心事重重 some thing weighs heavily on ones mind The boss is quite down these days. He seems to have something weighing heavily on his mind. 老板这几天沉默寡言，看起来好像是心事重重的 2.苦苦哀求 press ones suit She press

【英语时差8，16】隐形人同样无法看到你2

On a previous Moment of Science we discussed one of the problems with turning yourself invisible. Sure, it sounds like fun. But a little physics showed us that the invisible man couldn't see anything either, because in order to see, light has to inte