MadSci Network: Physics

Subject: Effect of a lumpy universe

Date: Tue Sep 12 17:39:02 2000
Posted by Dan
Grade level: grad (non-science) School: No school entered.
City: Depere State/Province: WI Country: USA
Area of science: Physics
ID: 968794742.Ph

If the universe is lumpy (see question ID#: 877218533.Ph), is there a 
possibility that portions of it (say groups of galaxies) will “little 
crunch” while other portions expand forever?  If this were to happen 
frequently enough could it result in multiple smaller universes since the 
singularities formed by the little crunches will have attracted all the 
matter within its event horizon leaving nothing between it and the 
retreating, unaffected matter of other galaxies?  My imagination tells me 
that a universe with big holes of non-universe (except for a singularity 
at the hole’s center) in it or with whole sections of the universe 
separated from the main body of the universe by areas of non-universe is 
possible but only if there are little crunches.  This additionally assumes 
that the non-universe between the singularity and the closest matter it 
doesn’t affect is really non-universe since there is nothing there.

Re: Effect of a lumpy universe

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