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TIL of Plastic Pyrolysis. A process of heating plastic in the absence of oxygen to create solid, liquid, and gaseous fuels. Literally turning plastic back into oil!

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XxRj TIL 400 million years ago there were 22 hours in a day & more than 400 days in a year.
OovNg TIL the integral of the secant formula, important in cartography, has been found accidentally when a mathematician was running through numerical approximations known at the time and recognized they matched ln(|tan(phi/2 + pi/4)|). It took 28 more years for someone find a formal proof
DQnYJ TIL the shortest commercial flight in the world is between the Scottish islands of Westray and Papa Westray, which takes only 1.5 minutes from takeoff to landing.
5VoQ9 TIL a Chinese man was thought to have died from a lightning strike until his body exploded at his cremation. A piece of metal was found leading to the discovery that a weather rocket, meant to break up hail, had failed to explode & had fallen through the man's roof acting like a bullet, killing him.
pDrZ TIL of Wabi-Sabi, a principle of Japanese aesthetics that emphasizes beauty found in imperfection