You are here: Home / Pop Culture / Weird inventions that never caught on … One-wheel motorcycle. In 1931, the one-wheel motorcycle was introduced to the world. It was unstable and rather odd looking and never came close to surpassing the popularity of the two-wheel version. One-wheel motorcycle … Flying Car. First invented in 1937, a number of people have tried to popularize the flying car but it has never been embraced by the public. Flying Car … …

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Inventions that never caught on — Celebrities, Current Events …