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The original was posted on /r/todayilearned by /u/Scienscatologist on 2024-03-12 14:01:53.

Original Title: TIL of engineer and chemist Thomas Midgley Jr., who contracted polio at 51. He devised a system of ropes and pulleys for his bed, but became entangled and died of strangulation. He also invented chlorofluorocarbons, which created a hole in the ozone layer, and leaded gasoline.