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  • [自然百科] 自然百科:平行宇宙(4)

    "In spite of the fact that we call it the Big Bang theory, it really says absolutely nothing about the Big Bang. Ah, it does not tell us what banged, why it banged, what caused it to bang.

    2011-12-30 编辑:mike

  • [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 w

    2012-05-10 编辑:melody

  • [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 th

    2012-05-09 编辑:melody

  • [TED演讲视频版] 60秒科学:宇宙只有一个地球

    Scientists are looking for Earth-like planets around other stars. But one way to limit the search can be to figure out where an Earth-like planet cannot exist and eliminate those types of systems.科学

    2012-05-15 编辑:Daisy

  • [科学美国人技术系列] 60秒科学:宇宙只有一个地球

    Scientists are looking for Earth-like planets around other stars. But one way to limit the search can be to figure out where an Earth-like planet cannot exist and eliminate those types of systems.科学

    2012-05-15 编辑:Daisy

  • [探索发现] 宇宙的起源:大爆炸(4)

    When people first hear about the Big Bang theory, they say, well, where did it take place?当人们第一次听说大爆炸理论时会问道,那么它发生于哪里呢?It took place over there? It took place over there? W

    2012-05-14 编辑:melody

  • [探索发现] 宇宙的形成:大爆炸(3)

    原文文本:Not only are they moving, but they are flying away from earth at incredible speeds. This was the first real evidence of the Big Bang. All galaxies on average are moving away from us, and st

    2012-05-11 编辑:melody

  • [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 today

    2012-05-16 编辑:melody

  • [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

  • [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

  • [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 a

    2012-05-23 编辑:melody

  • [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 vi

    2012-05-29 编辑:melody

  • [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 fa

    2012-05-18 编辑:melody

  • [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 s

    2012-05-17 编辑:melody

  • [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

  • [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 not

    2012-05-25 编辑:melody

  • [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 th

    2012-05-28 编辑:melody

  • [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 wip

    2012-06-04 编辑:melody

  • [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

  • [科技新闻] 物理学向解释宇宙构成又近一步

    U.S. scientists released fresh data bolstering the case for the existence of the Higgs boson, a long-sought particle crucial to scientists' current understanding of how the universe is built.

    2012-07-05 编辑:justxrh