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Finite Matter, Infinite Density...
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by nåte on March 1, 1999 02:05:34 UTC |
: According to theory, Black Holes have infinte mass and infinte gravity. : How then, can there be an event horizon? If the force of gravity from the Black : Hole is infinite, then it would not dissipate with distance and therefore would be : the same everywhere, for an infinite distance. If my understanding of infinity is : correct, then Black Holes must have a finite mass and gravity if there is to be an : an event horizon.....right? actually I think you have the theory off a bit. BH have (at their singularities) infinite density, not infinite mass; for the reason you state in the latter portion. : ) this is why there are different sizes of BH as well. For instance the gravitational field surrounding a BH may as well be the mass of 50 of our suns, and the event horizon be 1500 feet across. |
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