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by roarcher 251 days ago
Maybe I'm missing something but this just seems to be a guy playing with magnets? In the "Demonstration of Ion Propulsion" video, he shows how the magnet "shoots" through the ring, but it's just the release of potential energy from forcing the opposing poles together in the first place. It's like those "permanent magnet rail guns" people post on YouTube. I don't see what's novel about it.