What lies between universes in a multiverse?

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Weronika

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What lies between universes in a multiverse?
« on: 19/06/2010 06:30:02 »
Weronika asked the Naked Scientists:
   
Since I have found a theory of the "multiverse" I was wondering: if instead of one Universe, there is multiverse, what is in the space in between those Universes?

Oh, and also how does "nothing" outside space look like? Is there one? If there is nothing what would happen if something appeared there?

Thanks

What do you think?
« Last Edit: 19/06/2010 06:30:02 by _system »

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Offline LeeE

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What lies between universes in a multiverse?
« Reply #1 on: 19/06/2010 17:14:53 »
'Multiverses' generally require a higher order dimensional environment than our four-dimensional universe.

We can only really illustrate it by using lower order dimensional examples though, as we can't directly show a higher dimensional order object in a lower order dimensional environment.

So draw two separate lines on a sheet of paper.  Each one of these notionally one dimensional lines represents a four-dimensional universe.  Now these one dimensional lines have been drawn on a two dimensional surface i.e. the sheet of paper, and what separates them is the second dimension of the sheet of paper, the one at right angles that gives it an area.

In a 'multiverse' then, numerous four-dimensional universes would be separated by a fifth dimension, one that our four-dimensional universe doesn't possess, just as the lines on the sheet of paper only have length, but no area.
...And its claws are as big as cups, and for some reason it's got a tremendous fear of stamps! And Mrs Doyle was telling me it's got magnets on its tail, so if you're made out of metal it can attach itself to you! And instead of a mouth it's got four arses!

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Offline flr

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What lies between universes in a multiverse?
« Reply #2 on: 19/06/2010 18:33:34 »
They may be separated by event-horizon kind of boundary. That means they are not deterministically connected.