Re: universe expanding, not from any particular spot

[Ludwik Kowalski <KowalskiL@MAIL.MONTCLAIR.EDU>]

In the spirit of Newtonian mechanics trajectories of ants
(residing on the expanding balloon) are straight lines
intersecting at one point. That was the 'spot' to which
Lisa was probably referring.

John Denker wrote:

> At 06:38 PM 8/13/00 -0400, Lisa Gardner wrote:
> > even though we perceive our universe as expanding
> > from a 'spot'
> That is a common misconception.  In fact, the universe
> is _not_ expanding from any particular spot.
>
> Imagine ants living on a perfectly spherical balloon.  If
> you expand the balloon-universe (perhaps by heating the
> air inside) the universe gets bigger.  The ants do not get
> bigger.  Every ant is carried away from every other ...