Darren New <dne### [at] sanrrcom> wrote:
> >   I don't think the brick would expand because forces which are much
> > stronger than gravity are keeping it together.

> In other words, space expands, but then the brick collapses again? Sure, 
> it's possible.

  No. Space expands, the brick doesn't.

> It still doesn't explain why space expands but the matter 
> in it doesn't. It's like saying "time slows down, but the spring in the 
> clock keeps it running the same speed". :-)

  Hey, I'm just repeating what they are saying. Don't blame me.

  Things like expansion of the universe still make a lot of sense when
compared to the wackiness of quantum mechanics, which has all kinds of
things akin go magic. (For example particles being in two places at the
same time. This includes the possibility of a particle being inside and
outside the event horizon of a black hole at the same time. Go figure.)

> I don't think this works for celestial objects. If you added space 
> between the sun and the earth without slowing the orbit of the earth (in 
> absolute velocity terms), you'd make an unstable system where the earth 
> would tend to move even farther from the sun.

  AFAIK space doesn't expand inside galaxies.

-- 
                                                          - Warp

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