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Re: Most likely candidate for future spaceship propulsion
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Originally Posted by Moontanman
Gardamorg, once you achieve a velocity in space you keep it until something else acts on you. And at least theoretically a magnetic sail could be a million miles in diameter. But it wouldn't need to be, once you had achieved your velocity you could coast to the end of the universe if you wanted but I would prefer to coast to the next star and decelerate into orbit around that star. Power to generate the sail could be generated by a nuclear reactor. All this technology could be done now, nothing new needs to be discovered for it to work.
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The weight of the payload that the magfield would be hauling would generate drag.
Weight is a constant, and it is a force that acts against velocity, surely it's not as great in space as on Earth, but it's still there.
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"We believed the world would not be the same, a few people laughed, a few people cried, most people were silent, I remembered a line from the Hindu scripture, the bagavagita, Vishnu was trying to convince the prince that he should do his duty, and to impress him, he takes on his multi-armed form and says, Now I have become death, destroyer of worlds. I suppose we all thought that, in one way or another"
-Robert J Oppenheimer, The atomic bomb
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