Stirling Westrup <sti@cam.org> Wrote:
>Many interesting things happen when black holes collide (at least
>theoretically). One is that the final resulting black hole has an apparant
>volume less than the sum of the apparant volumes of the two colliding holes.
It's better to talk about the area of the event horizon because it's not at all clear
what "the volume of a black hole" means. You need a radius to figure the volume
and although a black hole has a circumference and a area it has no radius. I don't
mean its radius is zero I mean it has no radius, at least not a number that means
much. Also the area of the merging hole is always larger than before not smaller.
John K Clark jonkc@att.net
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