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The original was posted on /r/todayilearned by /u/EssexGuyUpNorth on 2025-06-26 22:05:21+00:00.

Original Title: TIL that in 1970 British Rail submitted a patent for a flying saucer designed to be an interplanetary vehicle powered by nuclear fusion. It was originally proposed as a lifting platform and by the time the patent was filed it had been revised to become a large passenger craft for space travel.