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TIL About "commotio cordis" a heart failure that occurs if you get hit in the chest at just the right time, causing a disturbance in the electrical impulses. It directly affects your heart rhythm and in most cases kill with a 3 minute window to treat.

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N1v1 TIL that Hugh Hefner is credited for breaking the color barrier in stand up comedy when he hired African American comedian Dick Gregory to perform at the Playboy Club in Chicago.
4Xr1g TIL Oxyphenbutazone is theoretically the highest-scoring of all the Scrabble words—hooked to the right words, it would earn a whopping 1,778 points, found Dan Stock of Ohio. But it would require perfect placement of eight other tiles, so it’s never actually been played in a real game.
9bKX TIL Carl Sagan thought he was able to explain things because for the most part, understanding difficult concepts didn’t come easy to him. “The very brilliant ones figure it out so fast they never see the mechanics of understanding.”
QJAeL TIL Abraham Lincoln was self-educated, having received a total of less than 12 months of formal education. Lincoln described his education as “defective” and never attended college. He was an avid reader, however, who maintained a lifelong interest in learning.
VMDp4 TIL that witches are banned from flying above 150 meters in the landlocked African nation of Eswatini. Any witch caught flying their broomstick above the limit faces arrest and a hefty R500,000 fine according to the country’s civil aviation authority. There's no penalty for flying below 150 meters.