Re: The first Law of Thermodynamics

marks542004@xxxxxxxxx wrote:
> Why must energy have been created in the past ?
>
> I thought, and feel free to correct this , that one version of a "BIG
> BANG" theory was that it was a cyclic event. i.e Start with a small,
> compressed lump of something. It explodes (for lack of a better word),
> universe then expands until gravitational forces slow the expansion and
> eventually cause the universe to contract at which point it reforms its
> original state.

AIUI, the universe is expanding too fast to ever reverse
direction. It will end not with a crunch but with a whimper.

--Jeff

--
Often war is waged only in order to
show valor; thus an inner dignity is
ascribed to war itself, and even some
philosophers have praised it as an
ennoblement of humanity, forgetting the
pronouncement of the Greek who said,
"War is an evil in as much as it produces
more wicked men than it takes away."
--Immanuel Kant

.

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