It was 1988, my good friend Professor Gerald K. O’Neill of Princeton University and SSI spoke of where we would be by 2020. We worked tirelessly on the Mass Driver for years and would not have imagined it would have been forgotten when he passed. This is our future—that wasn’t.pic.twitter.com/dmrKjpcQX8
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The end of Interstellar take place in an O’Neill Cylinder, and if anyone knows enough to include this in the story, they likely know you need a mass driver to build it. So in fiction at least O’Neill remains a major figure, if in the background. Thank you for sharing that video!
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I also can't believe we're still using chemical rockets. NASA's David Burns may be on the right track with his helical engine, though I'm not sure why you wouldn't reconfigure it as a toroid. Then you'd have a tokamak reactor, and it wouldn't need to be externally powered.
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