If the rate of expansion one second after the Big Bang had been smaller by even one part in a hundred thousand million million, it would have recollapsed before it reached its present size. On the other hand, if it had been greater by a part in a million, the universe would have expanded too rapidly for stars and planets to form.
タグ: big, present, universe, stars

"Stephen Hawking"の他の名言

One, remember to look up at the stars and not down at your feet. Two, never give up work. Work gives you meaning and purpose and life is empty without it. Three, if you are lucky enough to find love, remember it is there and don't throw it away.
タグ: science, philosophy
I have so much that I want to do. I hate wasting time.
タグ: much, wasting-time, want, hate, time
There is no unique picture of reality.
タグ: picture, reality
Even if it turns out that time travel is impossible, it is important that we understand why it is impossible.
タグ: understand, impossible, travel, time
Theology is unnecessary.
タグ: theology, unnecessary
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