General relativity, the theory of gravity developed a century ago by Albert Einstein, shows one potent way to bend and warp spacetime: gravity curves spacetime and slows clocks. In 1949, Einstein's colleague, Kurt Gödel, found it was even possible to do this to allow time travel into the past, which had disturbing implications.
The time travel theory proposed by Prof Ori and his student Dana Levanony in Physical Review shows that the loop would form within an empty, doughnut-shaped region of spacetime enveloped by a sphere of normal matter.
The distortion of spacetime would result from other huge nearby masses, such as a black hole. Once inside the doughnut, a would-be Dr Who would go further into the past with each orbit.
"The machine is spacetime itself," Prof Ori explains. "If we were to create an area with a warp like this in space that would enable timelines to close on themselves, it might enable future generations to return to visit our time.
Let us suppose that one could actually build a Time Machine. The question is how would it work?
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Top Opinion
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xphile 2009/09/25 05:06:20
JB
Perhaps I'm too cryptic, though. :shrug: Hurr... I think that it'd have to warp time and space; but there'd be consequences to that. :| Really, I think there'd be too many consequences that would wind up harming us on the whole, rather than get any good out of it. There are things I'd like to see, do, etc back in the day, but I reckon it'd be best to leave the past as it is. ^^;
JB
JB
we see them as we are."
The government came and took over his program... shutting him down with a threat of prison if he continued in any way to market this program... (like they did with people who developed automobiles that ran on anything but petrol)
I called him to get a program a few years after I had used his stuff to get more... he told me the story... him and his wife were scared spitless.. they even thought I was government... checking up on them to see if they would sell...
It was about this same time we began noticing a mentality among the military personel that bespoke ... brainwashing/subliminal training....
The government uses all kinds of media to brainwash us... really crummy ..eh?
I am worried about the civilian army... I believe it will be our police force... now they must be trained like military... and I believe they are subliminally brainwashed as well... at least our local officers have changed... they are anal and insane... almost inhuman...
The time travel theory proposed by Prof Ori and his student Dana Levanony in Physical Review shows that the loop would form within an empty, doughnut-shaped region of spacetime enveloped by a sphere of normal matter.
The distortion of spacetime would result from other huge nearby masses, such as a black hole. Once inside the doughnut, a would-be Dr Who would go further into the past with each orbit.
"The machine is spacetime itself," Prof Ori explains. "If we were to create an area with a warp like this in space that would enable timelines to close on themselves, it might enable future generations to return to visit our time.
Otherwise, the universe should collapse, right?
Infinity must be real for there to be a workable Time Machine, and you need a way to keep from being disassembled while going there.
Controlling 'where' is a different issue. How do you control a wormhole?