Stephen Hawking on Black Holes

By their very definition,black holes are 1) objects which are not supposed to 2) emit anything .It therefore seemed that the area of the 3) event horizon of a black hole could not be regarded as its 4

疯狂情景会话真功夫 71.Windflowers

Windflowers, windflowers [00:02.43]风飞花，风飞花 [00:04.86]My father told me not to go near them [00:07.46]父亲对我说别走近它 [00:10.06]He said he feared them always [00:11.49]他说他总有些害怕 [00:12.93]And he told me that th

Are Brazil’s Rainforests in Danger?

The United Nations Climate Summit takes place next week in Poland. About 20,000 people from 190 countries are expected to take part in the conference. There, world leaders will debate how to limit climate change -- the weather events linked to slowly

SSS 2008-08-25

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute? For accurate weather forecasting and climate analysis, researchers need the best models possible about how the air circulates above the earth. And a new study is challe

S. Korea Says Korean Leaders to Meet on Denuclearization

A South Korean official says North Koreas leader commented that he is committed to denuclearization of the Korean Peninsula. National security advisor Chung Eui-yong also said that the leaders of North and South Korea are to meet in the capital of No

SSS 2009-05-07

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

英文摇滚歌曲：5 Seconds Of Summer - Vapor

I'll take what you got got got I know it's not a lot lot lot Cause I just need another hit You're the thing that I can't quit You got what I want want want Here and then you're gone gone gone If you told me that we were through You know that I would

英语歌曲:Travis--colder~~

Travis--colder~~ i'm in love with everything with every face i've ever seen and every place i've ever been has left its mark upon my worries i color in the world i see i pick apart the melody 'cause maybe there's a symphony caught inside but there's

THE MAKING OF A NATION 180 - Inauguration of Franklin Roosev

THE MAKING OF A NATION - February 14, 2002: Inauguration of Franklin Roosevelt By David Jarmul VOICE 1: THE MAKING OF A NATION -- a program in Special English by the Voice of America. (Theme) American

TED演讲:为什么油水不能混合(1)

Why does salt dissolve in water but oil doesn't? 为什么盐可溶于水而油却不行呢？ Well, in a word,chemistry. But that's not very satisfied, isn't it? 总的来说，是化学作用。但这并不令人满意，对吧？ Well, the reason

万物简史 第159期:爱因斯坦的宇宙(2)

In 1875, when a young German in Kiel named Max Planck was deciding whether to devote his life to mathematics or to physics, he was urged most heartily not to choose physics because the breakthroughs had all been made there. The coming century, he was

电子香烟惹争议

电子香烟惹争议 Should electronic cigarettes be a new option for smokers trying to kick the habit? Reactions from Americans are mixed. More than half of people questioned in a poll think electronic cigarettes should be regulated by the US Food

旅游人们最爱带啥? 国人大爱方便面

Forget flip flops and sun tan lotion, it's coffee and ketchup that holidaymakers consider their packing essentials, according to a new study. 一项最新研究显示，度假行李中的必备物品根本不是人字拖和防晒霜，而是咖啡和番

Vast water vapor beyond solar system found

BEIJING, Oct. 21 (Xinhuanet) -- A team of European researchers announced that they have found vast water vapor out of our solar system, according to a study in the U.S. journal Science Friday. Using Herschel Space Observatory, a European Space Agency

英语小达人 299 What the Student Say in Science Classes

What the Student Say in Science Classes 自然科学课上学生们都说了什么 The following quotations were gleaned from classroom discussions in 5th and 6th grade science classes. 下面的这些话都是从五六年级的自然科学课的课堂

China to speed up informatization development

BEIJING, May 9 (Xinhua) -- The State Council, China's cabinet, said on Wednesday that the country will step up efforts to promote informatization development and strengthen information security. Speeding up the construction of informatization and bui

万物简史 第386期:浩瀚的海洋(5)

There are 320 million cubic miles of water on Earth and that is all we're ever going to get. 地球上有13亿立方公里水，这是全部。 The system is closed: practically speaking, nothing can be added or subtracted. 系统已经关闭，说得明

英语听书《白鲸记》第785期

I know not that any other author has hinted of the matter; 我不知道是否有其他作家提及此事， but by inference it seems to me that the sturgeon must be divided in the same way as the whale, 不过据我推断，鲟鱼也一定是按大鲸

你是否还会坚持原来的样子

Surmounting Life's Obstacles - Do You Cling to What You Were Before? 跨越生命中的障碍 您还坚持原来的样子吗? A little stream flowed down from a high mountain far, far away through many villages and forests, until it reached a desert.

英语听书《白鲸记》第324期

He was going on with some wild reminiscences about his tomahawk-pipe which, it seemed, had in its two uses both brained his foes and soothed his soul, 他是在对他那烟斗斧发狂思,那东西,在我们直接注意这个熟睡的索匠的时候,好