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What could cause the spontaneous appearance of a universe?
是什么让宇宙无中生有
At first, it seems a baffling problem.
起初这问题似乎令人困惑
After all,in our daily lives,things don't simply materialize out of the blue.
毕竟在日常生活中 东西不会凭空出现
You can't just click your fingers and summon up a cup of coffee when you feel like one,can you?
你不能弾弹手指 就在想喝时变出一杯咖啡吧
You have to make it out of other stuff,
你得用其它东西冲泡出来
like coffee beans,water,perhaps some milk and sugar.
像是咖啡豆 和水 也许还会加牛奶和糖
But travel down into this coffee cup...Through the milk particles...Down to the atomic level...
但我们往咖啡深处走 穿过牛奶粒子 到原子层次
And right down to the subatomic level...
再到亚原子层次
And you enter a world where conjuring something out of nothing is possible...
就进入了一个 能无中生有的世界 是有可能的
At least for a short while.
至少能短暂出现
That's because at this scale,particles such as protons
那是因为这个层次的 粒子和质子
behave according to the laws of nature we call quantum mechanics.
其行为依据的自然法则 是所谓的量子力学
And they really can appear at random,
它们可以随机出现
stick around for a while,and then vanish again...
短暂停留 然后又消失无踪
To reappear somewhere else.
在别处再度出现
Since we know the Universe itself was once very small
既然我们知道宇宙曾经很小
smaller than a proton, in fact this means something quite remarkable.
比质子还要小 这意味着一件了不起的事
