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Originally posted by prototism
most people agree that a wormhole is a shortcut though space.
i suppose you could argue it technically is time travel, since its much faster than traveling to the intended destination though a wormhole than though "normal" space.
and about a wormhole crushing objects, i think youre getting that confused with a black hole. though, who really knows if wormholes have crushing power or not, or if they even exist at all.
[edit on 5-11-2006 by prototism]
Originally posted by The Collective
A wormhole (in theory) does not nessesarily mean it sends you to a location in space at an extrordinary velocity, What they are thought to do it fold space/time so that two different locations co-exist in the same space and time so that you can "jump" from one point in space to another instantaneously.
Excerpt:
THE title of Heinrich Päs's latest paper might not
mean much to you. To those who know their
theoretical physics, however, "Closed timelike
curves in asymmetrically warped brane universes"
contains a revelation. It suggests that time
machines might be far more common than we
ever thought possible.
Forget trawling the universe in search of rotating
black holes or exotic wormhole tunnels that could
supposedly let us hop from one instant to another.
According to Päs, a physicist at the University of
Hawaii at Manoa, and his colleagues, the door to
a time machine could be anywhere and
everywhere in our universe. And unlike most other
scenarios for time travel, we can test this one here
on Earth. "I think the ideas presented are
wonderful and exciting," says Bill Louis, a
physicist at Los Alamos National Laboratory in
New Mexico and co-spokesperson for the
MiniBoone neutrino experiment at Fermilab, near
Chicago. "The question is are they true or not."
Originally posted by prestige8
I am certain worm holes exist everywhere,
Originally posted by supercheetah
Worm holes create a problem for physicists: they throw causality out the window.
Originally posted by supercheetah
Worm holes create a problem for physicists: they throw causality out the window.
If causality doesn't exist, then your memories cannot be trusted. What you remember now about your past could have been completely different a second ago, but you wouldn't know that because there is no causality. One of the saving graces for physicists would be the existence of multiple parallel universes--especially universes without black holes!
This is a perfect opportunity to segue into black holes--the favorite topic of the brilliant Stephen Hawking, who has pretty much done all the work on our theoretical understanding of black holes to date. Black holes and worm holes are intimately related--and not just because they give physicists nightmares for the hypothetical implications regarding causality. Worm holes require negative energy to stay open, and the only source of negative energy that we know of is black holes. Thus, it is entirely possible that if there are any naturally occurring worm holes, they would be near black holes, but they would, in all likelihood, be quite tiny, and not stretch that far.
Of course, if worm holes don't exist, that doesn't mean that physicists get a break from the nightmare that causality doesn't exist. Black holes--due to their evaporation into Hawking radiation--are more than enough to cause causality problems. If anyone is curious, look up the Information Paradox. I'll give this much of a hint though; everything at a quantum level is reversible, and so all information in the universe is preserved. If black holes evaporate, then there is a quantum event that isn't reversible (at least according to current black hole theory), and thus destroys information--and that is how one destroys causality.
[edit on 12/3/2006 by supercheetah]
I never said anything to that effect at all. Perhaps I should have been clearer, though. What I said is that they're a source of negative energy. Since nothing escapes black holes, they pull virtual particles out from the ground state of the vacuum around them, thus creating negative mass since there's less mass there than the state where there is zero mass (i.e. the ground state of the vacuum). Since mass and energy are equivalent according to Einstein's theory of Special Relativity, one ends up with negative energy.
Originally posted by NegativeBeef
umm blackholes are not negative energy
Originally posted by Ghost01
Originally posted by supercheetah
Worm holes create a problem for physicists: they throw causality out the window.
Supercheetah,
I don't understand your point, can you help me with this?
Causality is what we call the Law of Cause and Effect, is it not?
Now, the way I understand it is that a wormhole works as a short cut by taking a more direct route to a given spot. Worm Holes were explained to me like this:
Imagin that you are at the base of a mountain and need to get to the town on the other side. You can either go all the way around the mountain, or you can drive through the big cave that is like a natural tunnel. It's faster because it a direct route!
What you seem to be telling us is that a cave going through the mountain defies the law of Physics by disproving the Law of cause and Effect!
I don't understand, what does one have to do with the other?
Tim