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[探索发现] 宇宙的形成:大爆炸(2)
We arrive back at the moments the universe began, and face the biggest questions in all of science. This is the Holy Grail of Physics. We want to know why it banged. We want to know what banged. We w2012-05-10 编辑：melody
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[托福听力辅导] 托福听力备考要形成听觉印象
新托福托福听力是考生普遍的弱项，很多考生花了很多时间在托福听力备考上，却收效不大。这是为什么呢？小编为您带来托福听力备考9大技巧，希望对大家有所帮助。 l. 增加词汇量.熟练掌握常考场景词汇，包括学习场景2012-05-15 编辑：Daisy
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[探索发现] 宇宙的形成:大爆炸(1)
Billions and billions of galaxies, the universe is so vast.We can't even imagine what those numbers mean. But 14 billion years ago, none of these existed until the Big Bang.The Big Bang is th2012-05-09 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(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(10)
And then that pure energy briefly transforms into matter, just like it did nearly 14 billion years ago. But a monster machine needs a monster detector to see these collisions.正如140亿前年宇宙大爆炸一2012-05-24 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(13)
It was in fact the moment of creation, nearly 14 billion years ago when those first atoms got their electrons. That's the moment when the milky cloud clears and the new universe comes into vi2012-05-29 编辑：melody
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[探索发现] 宇宙的形成:大爆炸(7)
A fraction of a second after the Big Bang, the universe is so small, it can fit in the palm of your hand. But in another tiny fraction of a second, it expands to the size of the earth. Then moving fa2012-05-18 编辑：melody
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[探索发现] 宇宙的形成:大爆炸(6)
And for the record, that's faster than the speed of light. But wait. Doesn't that break one of the Laws of Physics?记录显示那比光速更快。但是且慢。那会打破其中一条物理学定律吗？Even s2012-05-17 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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[SAT写作辅导] SAT考场如何形成写作思路?
SAT写作考试的时间非常紧张，考生需要在最多3分钟的时间内形成自己的写作思路和写作大纲。那么我们如何练习才能在考场上达到这样的一个程度呢?下面天道小编就为大家整理了关于SAT写作思路的练习方法，希望对大家2012-06-13 编辑：echo
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[SAT写作辅导] SAT写作高分句型模板
下面为大家整理和推荐的是SAT写作高分的句型总结，都是以实际的例句形式呈现的。大家在备考SAT写作考试的时候，多掌握一些句型类的模板是非常有效果的，对于提高写作的速度节省时间非常有效。大家一起来看看详细2012-06-13 编辑：echo
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[时差N小时] 时差N小时:为何会形成黑眼圈? Why Do Dark Circles Form Unde
也许你的确需要多睡一会儿，尽管有着普遍的误解，但眼周或眼底的黑眼圈和浮肿似乎与睡眠不足没有太大的关系2014-02-25 编辑：mike
