like say in a soap bubble?

explain what curvature of teh universe?
the curvature of the universe has never been observed.
let's see if this sounds better:
WHY COULDN'T CURVATURE OF SPACETIME BE JUST CURVATURE OF SPACE?
what forces make a soap bubble a sphere?
You are a Spammer
could you explain briefly how surface tension curves the soap bubble?
the universe is expanding, is it expanding like a soap bubble?
as the edge is not observable, does this imply there is/can't be an edge?
universe has no curvature, but spacetime is curved, space is not curved, time is not curved.Right?
Surface tensiondoesn't curve the soap bubble. It is created as such and surface tension keeps it from collapsing or bursting.
The universe is curved or warped due to gravity, the only true long range force in the univese ( EMF can be mitigated by charge placement ).
There are no similarities whatsoever between bubbles, a two dimensional surface curved or embedded in three dimensional space, and the universe. The universe would not be embedded in a higher dimensional space.
Thanks migl, but that is exactly what I meant:
1) Einstein's equations are tensorial there 's where I see a huge similarity
2) so gravity might be the equivalent of surface tension (2 'the curvature of universe ' has been branded as 'false statement' by granpa,above)
3) if it were so it would be consequent that curvature of universe is curvature of space
4) It is not necessarily so, the soap is not 2dimension, its 3rd dimension is just thin.If you bring it on a larger scale , it's huge.
I hope it is clearer ,now.
Last edited by phyz; July 25th, 2011 at 01:02 AM.
No again.
Mass/energy curves or warps the 'fabric' of space/time and we call this curvature gravity.
A 'tensor' has nothing to do with tension, it is a mathematical construct like a vector or a matrix.
Yes, the surface of a soap bubble is two dimensional.
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