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Just right for Life

Started by A941 , Sep 20 2011 07:49 PM
Life

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#1 A941

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Posted 20 September 2011 - 07:49 PM


It is often said that if gravitation, electromagnetism aso. would be weaker or stronger, it would not be possible for life to exist in the universe.

But is this correct, could there be life which could exist in a universe without stars, and similar Universes?

#2 niner

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Posted 20 September 2011 - 10:52 PM

It is often said that if gravitation, electromagnetism aso. would be weaker or stronger, it would not be possible for life to exist in the universe.

But is this correct, could there be life which could exist in a universe without stars, and similar Universes?

I don't see how that could be right. If gravitation were stronger, we'd have stronger bones and muscles. If electromagnetism were weaker or stronger, we'd have different chemistry that would compensate. Would a shift in gravity even bother a bacterium at all?
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