Quote:
Originally Posted by Colmike7
It would be possible if wormholes weren't just theory..
First of all, Schwarzschild came up with this:
ds2 = -(1-2GM/r)dt2+(1-2GM/r)-1dr2+r2dΩ2
with dΩ2 being the normal differential portion of a sphere: dθ2+sin2θdφ2
With math, you can convert to Kruskal coordinates:
X2 - T2 = (r/(2GM)-1)er/2GM
and
T/X = tanh(t/4GM)
Then you can conclude that the event horizon = r > 2GM
Which means that the singularity at the center of the black hole: X2-T2 = -1
Which gets X2-T2 < -1 which is physically impossible.
Well, I guess not since at T=0, there is a hole, but the objects going through wouldn't be able to if they're going slower than the speed of light since t!=0 closes up the hole..
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This is stuff from 1930's.
Space got more dimensions than 3 + time, the space is not a sphere, it is Calabi-Yau manifold at many dimensions (depending on string theory varies from 6 to 12 dimensions, no one knows for sure yet), which is painted or lieing along the whole 2d cosmological horizon. Those 6+ dimensions are compactified to the 3 we see. So compactified Calabi-Yau 3-fold contain black holes which becomes massless near conifold singularities, but these preserve half supersymmetries precisely at event horizon so that curvarture singularity is protected by the event horizon itself.
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