08-02-2007, 07:15 PM
Little Killer Wrote:THEORIES ABOUT BLACK HOLES
What do you think about those?
(trying to get out of a war zone.)
The black hole? It's not actually a hole, just a singularity with such immense gravitational pull that nothing can escape it, not even light.
A black hole has an "event horizon" beyond which point the gravitational pull is so strong that nothing can escape it. Not even light. And since no matter can travel at a speed beyond the speed of light, nothing can escape the event horizon of a black hole!
Black holes are also invisible, only their effects can be seen. This is not just because light bends back on itself into the black hole. It's also because the radiation (virtual particles) given off by a black hole are swamped by radiation from the big bang, apparently. Otherwise we'd see a kind of radiation "halo" around a black hole. But we don't, for previously mentioned reasons.
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