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#11 | |
Zartan
![]() Join Date: May 2, 2001
Location: Ulpia Noviomagus Batavorum
Age: 44
Posts: 5,281
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Quote:
![]() Good thing we've still got you around for stating the obvious. |
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#12 |
Banned User
Join Date: March 1, 2001
Location: VT, USA
Age: 64
Posts: 3,097
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I was listening to physicist Brian Greene on the March 16 edition of Fresh Air on NPR and he spoke about time travel. He believes it is very possible for a man to travel to the future, but we will need a ship that can travel faster than light. Traveling to the past, knowing what we know now, could be possible but much harder to accomplish. He feels it will probably be found that traveling into the past will be impossible as more knowledge about it is gained.
He has written a new book called: The Fabric of the Cosmos: Space, Time, and the Texture of Reality. You can listen to his interview with Terry Gross here. Mark |
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#13 |
Drow Priestess
![]() Join Date: March 13, 2001
Location: a hidden sanctorum high above the metroplex
Age: 55
Posts: 4,037
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Quantum physicists observe time travel into the past all the time. Antiparticles, such as the positron, are actually normal particles travelling backwards through time; at least, a positron travelling forward in time is mathematically equivalent to an electron travelling backwards through time.
The faster you travel the higher your relativistic mass becomes, which means it would require more energy to continue accelerating. Since we are still limited to propellants for most acceleration, the amount of fuel required to attain truly dizzying speeds is too prohibitive both in cost and mass. We would need a non-Newtonian source of acceleration to attain velocities near the speed of light. The ability to bend local space-time would help with this, because gravity is just a field of constant acceleration; if you bend the field correctly, you would "push" your ship forward. Back to Einstein.... We know his predictions of time are accurate, because given two synchronized chronometers and launching one into orbit results in the one being subjected to more intense acceleration and velocity falling behind the second one, just as it should. It will be very interesting to see the results of this experiment.
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Everything may be explained by a conspiracy theory. All conspiracy theories are true. No matter how thinly you slice it, it's still bologna. |
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#14 | |
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