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TIL the color purple doesn’t exist and is considered an illusion

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Emk0 TIL that police officer isn’t in the top ten most dangerous jobs in America and is barely #15
LQyGd TIL bears don't actually hibernate. Most of a bear’s bodily functions slow during its denning cycle in the winter, but true hibernation requires a significant drop in body temperature. A bear’s only dips by a few degrees. Also, the idea that they sleep all winter long is totally wrong.
N7PEE TIL that the first known recording of a human voice was made in 1860, but was only intended to show a sound wave visually, not to be played back. In 2008, it was optically scanned and converted to a sound file, revealing it to be a man singing "Au clair de la lune".
loj77 TIL of George Weah from Liberia. For 18 years, he was a renowned soccer player, being currently the only soccer player from Africa to win the Ballon d'Or and the FIFA Player of the Year. In 2018, he was elected as the 25th President of Liberia, making him Liberia's head of state and government.
EgEd7 TIL 41 years ago, today, 3 people died on the set of Twilight Zone: The Movie (1983); under the negligent direction of John Landis, after he ordered a helicopter's tail-rotor directly over staged FX explosives. Bringing down the copter, decapitating two and crushing the other to death.