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Re: Black Hole Questions - NEED AN EXPERT . . .

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Posted by Nancy/">Nancy on December 5, 1998 23:53:42 UTC

: : Hi, I was wondering if someone could answer a few questions on black holes. I'm doing a report at school, and I need some questions answered by "experts." So if anyone out there is an expert, please answer these questions, and include your name, occupation, where you work, and all that type of stuff.Okay:

: : 1) What is the probability that in the future, time travel through white holes will be possible?

: Numair

: White Holes do not exist. They where theorised to exist as the opposite of Black Holes. : This means that for every Black Hole there would be a White Hole. : As no one has ever detected a White Hole the theory remains just that.

: Same goes for "wormholes". The Wormhole, if it exists, would connect a Black and White Hole. : The proper name for these are "Einstein-Rosen Bridges". Again, it is just a nice theory with no : observational evidence to back it. There is another type of Wormhole created through an effect of Quantum Mechanics. : They are too small to observe as well and remain a theory.

: So the chances of us inventing time travel using two theories with no evidence to suport either is approximately, zero. : plus or minus zero.

On the contrary, there is indeed some evidence, supported by the detection of quasars, which contend that white holes do exist.

In fact, recent research on wormholes conducted by Kip Thorne and Michael Morris at CalTech elegantly proves the theoretical possibility for wormholes that bridge the universe.

Sure, any physical requirements for such a model would seem contrived and implausible, but it still remains that there is still nothing in the laws of physics that forbids travel through wormholes.

Check out their paper published in the American Journal of Physics, 1988. (Wormholes in spacetime and their use for interstellar travel: A tool for teaching general relativity.)

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