Mitch
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« on: August 05, 2011, 02:57:36 AM » |
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You were in a special car with rocket boosters you could control where they fired at the speed of light if you wish and you had unlimited gasoline for your car and unlimited oxygen.
You were driving into the black hole and decided to right before you hit the event horizon of the black hole you'd flip the car around so that the rocket boosters were facing the black hole's event horizon/boundary and you fired the boosters so that your car was going the speed of light.
Would you be stepping on the gas pedal forever? would you be stuck in orbit around black hole forever? what would happen?
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mEh
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« Reply #1 on: August 05, 2011, 03:53:06 AM » |
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I don't know but that sounds fuc*ing awesome.
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purple_Flag
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« Reply #2 on: August 05, 2011, 04:06:17 AM » |
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you would get sucked into the black hole, no questions.
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kumorifox
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« Reply #3 on: August 05, 2011, 04:29:46 AM » |
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If you didn't reach the event horizon, you'd be shot off into a different trajectory than the one you were travelling from, but you could still escape, even though it would take a *lot* of energy. In theory, you'd also time-travel to the future, since the gravitational effects would affect your relative time so much that, for you, time barely passes, but for the outside Universe, a lot of time has gone by.
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D
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« Reply #4 on: August 05, 2011, 04:51:11 AM » |
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Gravitational tides near the event horizon would shred any matter into atoms in an instant, and the energy levels would disintegrate you in an even faster instant, so it's a flawed scenario, it could never happen. There is no way any vehicle or device containing a person could enter that kind of environment, any more than you could dive into the Sun.
zxc
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quantumclaustropho
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« Reply #5 on: August 05, 2011, 05:23:32 AM » |
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Well, there's a lot of holes in the scenario, but bottom line is, if you're *outside* the event horizon, it's conceivable that you could escape.... With time dilation, from *your* point of view, the whole event might take a few seconds. From someone *watching* you from afar, it might take weeks to years.
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Donut_Tim
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« Reply #6 on: August 05, 2011, 05:32:37 AM » |
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All references to your magical car aside, a black hole uses only ordinary gravity. There are no mystical forces involved.
If you were falling into a black hole or a normal star or a planet, to escape you would need to accelerate away from the object. The stronger the gravitational pull, the more force you would need to counteract it. At the event horizon of a black hole the pull of gravity is stronger than can be resisted by any means.
When you speak of time dilation, it must be remembered that from each person's viewpoint, time alway moves at a constant and normal rate. Time dilation only occurs when someone is viewing an object or person OTHER than himself.
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