一分钟 物理 诺贝尔版
很长时间以来 宇宙一直在膨胀
You know for a long time the universe is expanding
本片源来自芷, 版权归原上传者所有。中文字幕由★云云★制作。仅供加入BTM字幕组测试所用。任何组织和个人不得公开传播或用于任何商业盈利用途，否则一切后果由该组织或个人承担！本人不承担任何法律及连带责任!
如果你观察这些遥远的星系 它们正在远离我们
If you are looking at distinct galaxies, they are moving away from us.
更多遥远的星系移动的速度更快
And more distinct galaxies are moving away faster
所以 真的不只是爆炸的星系在远离
So really it's not just the explosion of galaxies away from us
所有的星系都在远离其他的星系
all galaxies are moving away from all the other galaxies
空间本身变的越来越大
space itself is getting bigger
但是你期待的宇宙膨胀是慢慢减速的
But you expect the expansion of the universe is something that would slow down
好累啊!
这些星系之间有引力互相吸引着
These galaxies have gravity that attract each other
所以你可能期望膨胀是随着时间慢慢消失的
So you would expect the expansion of the universe to diminish with time
将来
所以当我们很惊奇的在1998年发现这些星系实际上在加速
So it's a big surprise in 1998 when we realize the galaxies are actually speeding up
今天
如果你观察一颗星系 它不仅正在远离我们
If you look one galaxy, not only the one is moving away from us
明天还会加快离开的速度
But tomorrow will be moving away from us faster
这就是我们所说的宇宙加速
This is what we called the acceleration of the universe
回来!
但是我们也不是一无所获
But we are not completely baffled
他们原来觉得这个错了
我们有爱因斯坦提出来的很好的理论模型
We have a good theoritical model handed out to us by Einstein
毕竟我是对的
原理是 即使是空的空间也有能量 叫做真空能量或者黑暗能量
The idea that even empty space has energy what we called vacuum energy or dark energy
这里有能量
真空能量推动着空间本身
This vacuum energy pushes space itself
导致这些星系越来越快的远离我们
And causes these galaxies to move away from us faster and faster
这就是加速度的来源
That's where the acceration comes from
解释:
因此理论性宇宙学家都尝试去了解可能发生的情况
So theoretical cosmologists try to understand what could be going on
这真的是空间能量吗 有没有一些变化
Is it really vacuum energy? Is it some variation of it?
或者甚至改写了爱因斯坦的广义相对论和我们的引力理论
Or is it even a modification of Einstein's General Relativity, our theory of gravity
或许他是错的
噢..
如果真空能量石正确答案 那么宇宙会继续膨胀
If vacuum energy is the right answer, the universe will continue to expand
星系会继续远离我们
The galaxies will go away from us
宇宙将会慢慢变得更加孤独 黑暗和空洞
And the universe will gradually become a lonelier, darker and emptier place.
恭喜
获得2011年物理诺贝尔奖