In reply to Axil Axil's message of Sun, 19 Aug 2012 02:31:41 -0400: Hi, [snip] >A *gravitational singularity* or *spacetime singularity* is a location >where the quantities that are used to measure the >gravitational<http://en.wikipedia.org/wiki/Gravitational>field become >infinite <http://en.wikipedia.org/wiki/Infinity> in a way that does not >depend on the coordinate system. These quantities are the scalar invariant >curvatures <http://en.wikipedia.org/wiki/Curvature_of_Riemannian_manifolds>of >spacetime, which includes a measure of the density of matter.
I suspect that the only singularity is the center point of the black hole. (Like the center of a circle.) However I don't think that there is actually anything in the center. I think that all matter is converted to EM radiation by the time it reaches the Schwarzschild radius, where the curvature of space time is so strong that the EM radiation basically just goes around in a circle. My guess is that there is only vacuum inside the Schwarzschild radius. Black holes are hollow. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
