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Time Travel (pg. 6)
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| Trancention |
I have a question:
In theory, wouldn't accelerating to anywhere near the speed of light kill and destroy whatever it is because of the massive G forces it would cause? |
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| Omegasox |
If you can survive entering a black hole's event horizon, without getting sucked into the black hole itself, you'd technically witness time stand still. So when you exit, you'd be in the "future" without having aged.
Of course, it's all hypothetical, since it's impossible to test present day.
And as for whoever asked about the quasar, the brilliance of a quasar is so great that a star that is 100 lightyears away would be indistinguishable from a quasar that was 9,000,000,000 light years away. They shine with a brilliance of about 200 galaxies. It's crazy. |
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| DJ-Fuq |
| quote: | Originally posted by Omegasox
If you can survive entering a black hole's event horizon, without getting sucked into the black hole itself, you'd technically witness time stand still. So when you exit, you'd be in the "future" without having aged. |
How? Time is not a real physical thing that u can travel through or bend or anything, its just a measurement |
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| whiskers |
| quote: | Originally posted by Trancention
I have a question:
In theory, wouldn't accelerating to anywhere near the speed of light kill and destroy whatever it is because of the massive G forces it would cause? |
that's if you accelerate rapidly. if acceleration is gradual, say 10 m/s/s - 1 g, then you wouldn't even feel anything.
that's the thing about flying to other stars. alpha centauri might be 4 light years away, but accelerating to the speed of light, provided we could ever build a spaceship that would go that fast, and then slowing down would take more time than the flight at full speed itself.
that's why wormholes, although theoretical, are the optimal way of traveling to other stars.
although we first have to prove that they exist, and then find a way to enter / exit them. and what if there's no wormhole that leads to alpha centauri? |
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| whiskers |
| quote: | Originally posted by DJ-Fuq
How? Time is not a real physical thing that u can travel through or bend or anything, its just a measurement |
no it's not. nobody really knows how much of a physical thing it is, but there are theories that under enormous gravitational pulls time doesn't behave like it does normally.
plus remember, if you're traveling at the speed of light, not only time goes by slower for you, everything also seems to be longer (vs. an observer). einstein's theory of relativity is very interesting, i used to read about it when i was like 10. |
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| Omegasox |
| quote: | Originally posted by DJ-Fuq
How? Time is not a real physical thing that u can travel through or bend or anything, its just a measurement |
Gravitational fields cause a warping of time, so the closer you got to the event horizon (say within an inch) the slower time would pass. If you had a watch on, your watch would tick ~10,000 times slower (Depending on the size of the black hole) relative to a clock on Earth. So if you would hover as close as possible to the event horizon, without entering it, in a years time, 10,000 years would have passed on Earth.
I worded my post earlier wrong, if you enter an event horizon you die instantly because of the immense gravitational force, it will literally stretch you apart. |
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| DJ-Fuq |
Sounds to me like the gravitys just having some strange effect on ur watch. Surely the hands would find it difficult to turn under such pressure.
How does anyone know that time looks slower if ur going at the speed of light?
And these worm holes. If u went outside the universe u would simply be in an inescapable vacuum. How can the universe be folded?
I dont believe any of this time warping at all. Just sounds a bit far fetched. But it is interesting. |
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| Omegasox |
I don't understand time myself, who even knows if it exists as we conceive of it.
As for passing through wormholes into an inescapable vacuum, look at Schrodingers cat. To me this shows the idea of multiple dimensions (universes) and that only one comes into our "reality" once it is observed. Doesn't really show that traveling through a wormhole will do anything, but I believe in multiple "realities" and only one truly comes into existence through observation.
Edit: The whole watch explanation is just there for explanation purposes, a watch wouldn't even work under such circumstances, nor would you survive being there. It's just an example. |
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| whiskers |
| quote: | Originally posted by DJ-Fuq
Sounds to me like the gravitys just having some strange effect on ur watch. Surely the hands would find it difficult to turn under such pressure.
How does anyone know that time looks slower if ur going at the speed of light?
And these worm holes. If u went outside the universe u would simply be in an inescapable vacuum. How can the universe be folded?
I dont believe any of this time warping at all. Just sounds a bit far fetched. But it is interesting. |
no offence personally to you, but your have you ever tried to explain to an old christian woman how computer works? your rebuttals sounds like something she might say. |
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| whiskers |
| quote: | Originally posted by Omegasox
I don't understand time myself, who even knows if it exists as we conceive of it. |
this is the eternal human problem - evaluating the world and the universe through our own, human eyes...
we can't even begin to imagine how much there might be out there what we can never see or hear... suppose ET life exists and suppose they see differently and hear differently; just imagine how their art could be difficult for us to perceive. |
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| Omegasox |
| quote: | Originally posted by whiskers
this is the eternal human problem - evaluating the world and the universe through our own, human eyes...
we can't even begin to imagine how much there might be out there what we can never see or hear... suppose ET life exists and suppose they see differently and hear differently; just imagine how their art could be difficult for us to perceive. |
Just imagine how ed our whole system of science would be if we came into contact with Aliens who lived on completely different principles than we had ever imagined. But that's an entire thread in itself. :D |
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