Could a Wormhole and Black Holes be Used to Reverse the Big Bang?

  • Thread starter tribdog
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In summary, a wormhole can connect two places in time, and by connecting two places in space, one can create a time machine.
  • #1
tribdog
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say I make a wormhole, a big one. that instead of connecting two places in space it connects two places in time. something that goes in one end comes out the other 1 second earlier. Then I throw in a black hole. which goes back in time and comes out the other end and now i have two black holes which go in and now I have four then eight etc. can I now reverse the big bang with all my extra gravity?
 
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  • #3
so I can't do it because Mr. Sawyer says so?
 
  • #4
I'm not sure how well a wormhole will accommodate a black hole.

As far as the energy conservation issues go, the entracne wormhole mouth will gain all the mass of anything that passes through it, and the exit wormhole mouth will lose that mass. So the total mass at both ends of the wormhole remains constant.

Thus if black holes could pass through wormholes without any problems (I don't know the answer to this, as I mentioned), on the exit side you'd have a large negative mass wormhole mouth together with a bunch of smaller positive mass black holes, but the total mass on the exit side of the wormhole before and after the emergence of the black holes wouldn't change.

Note: this implicitly assumes that you have an isolated section of the universe to play with, one that has an asymptotically flat space-time, so that you can measure the mass.

See for instance
http://www.npl.washington.edu/av/altvw69.html

If a positive electric charge Q passes through a wormhole mouth, the electric lines of force radiating away from the charge must thread through the aperture of the wormhole. The net result is that the entrance wormhole mouth has lines of force radiating away from it, and the exit wormhole mouth has lines of force radiating toward it. In effect, the entrance mouth has now been given a positive electric charge Q, and the exit mouth acquires a corresponding negative charge -Q. Similarly, if a mass M passes through a wormhole mouth, the entrance mouth has its mass increased by M, and the exit mouth has its mass reduced by an amount -M.

Note that this creates some stability issues, as Cramer goes on to discuss. Also note that while this article appeared in a science fiction magazine, it is a factual (popular-level) article by a professional physicist who also writes science fiction.
 
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  • #5
pervect said:
on the exit side you'd have a large negative mass wormhole mouth together with a bunch of smaller positive mass black holes
Would the worm holes mouth not then violate the positive energy theorem?
 
  • #6
I think physicists have postulated something like this for a long time. The basic mechanism would involve putting one "end" of a wormhole in a deep gravity well, such as very near a neutron star or black hole, where gravitational time dilation would pile up an offset between the two ends. When you get the right delay, then move the business end away from the neutron star/black hole, and you have an instant time--and space--machine
 

FAQ: Could a Wormhole and Black Holes be Used to Reverse the Big Bang?

Can the Big Bang be reversed?

As of current scientific understanding, the Big Bang cannot be reversed. The Big Bang is considered the beginning of the universe, and it is believed that the laws of physics do not allow for the reversal of this event.

Is there any evidence that the Big Bang could be reversed?

No, there is no evidence to suggest that the Big Bang could be reversed. All available evidence supports the idea that the universe is continuously expanding, rather than contracting.

Can humans create a reverse Big Bang?

No, humans do not have the technology or resources to create a reverse Big Bang. The energy required for such an event would be immense and far beyond our current capabilities.

What would happen if the Big Bang was reversed?

If the Big Bang were to somehow be reversed, it is impossible to predict what would happen. The laws of physics as we know them would no longer apply, and it is likely that the resulting effects would be catastrophic.

Is it possible to travel back in time to reverse the Big Bang?

No, according to current scientific understanding, time travel is not possible. The laws of physics do not allow for the reversal of time, and even if they did, the energy required to reverse the Big Bang would be insurmountable.

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