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[探索发现] 宇宙的形成:大爆炸(5)
Just the point to raging energy, it was the beginning of the universe and everything in it.奇点内的能量剧烈膨胀,包罗万象的宇宙开始形成。Everything was simple, all the forces that we know about today2012-05-16 编辑:melody
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[探索发现] 宇宙的形成:大爆炸(8)
In just a fraction of a second after the Big Bang, the building blocks of our Universe begin to take shape. But this first matter is like nothing we see today.大爆炸后短短的一瞬间,宇宙的组成元素开始2012-05-22 编辑:melody
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[探索发现] 宇宙的形成:大爆炸(9)
Now there are more and more subatomic particles, but it's still a hot, violent place. All this is happening in fractions of a second, too small to detect it, but the Big Bang is moving into a2012-05-23 编辑:melody
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[探索发现] 宇宙的形成:大爆炸(14)
These the fluctuations would grow to form galaxies. So if it wasn't for those little density fluctuations, you and I would not be here today.物质分布的密度不断涨落,范围逐渐扩大,最后形成星系2012-05-30 编辑:melody
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[探索发现] 宇宙的形成:大爆炸(11)
The universe with equal amounts of matter and anti-matters, equivalent to the universe with no matter at all, because the matter and anti-matter will annihilate back into pure radiation, and with not2012-05-25 编辑:melody
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[探索发现] 宇宙的形成:大爆炸(12)
The first one to form is Hydrogen. Then, over the next 3 minutes the Universe begins to create two more elements, helium and lithium.We went from a Universe that was infinitely small to a Universe th2012-05-28 编辑:melody
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[探索发现] 宇宙的形成:大爆炸(16)
So whether the universe end with a big crunch, our reverse of the Big Bang, or was it end by expanding out and becoming cold and dark. If you wish, would it end in fire or ice or with a bang or a wip2012-06-04 编辑:melody
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[探索发现] 宇宙的形成:大爆炸(15)
In the 14 billion years since the Big Bang, galaxies have been created, filled with stars, planets, and moons, and the universe has been expanding the whole time.大爆炸以后的140亿年里,包罗万象的星河2012-05-31 编辑:melody
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[科技新闻] 鼠标一点,中国迎来电子商务大爆炸时代
随着越来越多的零售商和供应商利用网上购物来吸引消费者,到2020年中国的电子商务经济将增长近6倍。2013-05-10 编辑:spring
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[经济学人文艺系列] 经济学人:宇宙大爆炸 Fundamental physics:Big bang
从前的学者保持着蓬头垢面、身着花呢夹克的形象。在过去几年里,物理学迎来了惊人的全面复兴。在美国,弦论学家米奇霍·卡库创作出数本反响不错的书。他对诸如虫洞及外星生命存在的可能性等小众课题的介绍赢得了2013-05-13 编辑:melody
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[CNN学生新闻] CNN热点问答 第299期:仙女座、草帽星和漩涡都与什么有关?
仙女座、草帽星和漩涡都是星系里的,尽管我们最熟悉的是银河。在银河新闻里,大爆炸理论在科学家里引起了轩然大波,但也捣乱的人警告说,他们并不知道一百四十亿年前发生了什么。2014-03-24 编辑:Joenthi
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[煎蛋小学堂:英语百科] 煎蛋小学堂:英语百科(视频+中英字幕) 第67课:大爆炸从何缘起
宇宙正在扩张。这是否就意味着存在一个中心,以此为点,所有事物都在向外延伸呢?我的意思是,看上去中心在这里,因为当我们进行度量时,这点并未移动。但是我们也可以轻易地把观测点移到这里,或者这里,它们“看”上去像是中心。2015-03-24 编辑:liekkas
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[《旅行到宇宙边缘》国家地理] NGC纪录片《旅行到宇宙边缘》(视频+MP3+中英字幕) 第28期
We've gone back before the stars were born 我们已经回到星辰诞生之前2015-08-06 编辑:max
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[《旅行到宇宙边缘》国家地理] NGC纪录片《旅行到宇宙边缘》(视频+MP3+中英字幕) 第29期
产生了空间、时间、物质和宇宙本身 起初只有亚原子大小2015-08-10 编辑:max
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[《重力错乱》纪录片] BBC纪录片地平线《重力错乱》第21期:宇宙间最极端的地方
这是自然界的一部分,我们尚未真正观察到,然而为了观察到引力波,不管它们是否按我们认为的影响这里的东西。2020-05-15 编辑:liekkas
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[时事新闻] 黎巴嫩首都突发大爆炸
黎巴嫩首都贝鲁特8月4日晚发生两起剧烈爆炸事故,造成至少100人死亡,4000人受伤。2020-08-10 编辑:Kelly