Quote:
Originally Posted by tommac
Just a slight correction. A white hole is not by definition the opposite of a black hole. In fact white holes and black holes may be the same thing.
A white hole has the same gravitational pull as a black hole so by that fact alone I would find it hard to distiguish between the two as stuff would be sucked into a white hole in the same way they are sucked into a black hole.
I believe the definition is that a white hole is a time reversal of a black hole. Which using that definition would clearly show that it has a gravitational effect exactly equal to a black hole.
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Although there would be no velocity difference wouldnt there be a red shift? Because one is deeper inside the gravity well and fighting against a compressing space time, similar in some ways to something travelling close to the speed of light ( at least in the sense that its space time is compressed ) so even though two beams of light are travelling at c doesnt mean that they are not redshifted right?