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TIL that art historians dismissed some doodles in da Vinci’s notebooks as “irrelevant.” But in 2016 a Cambridge professor found that one page of these scribbles actually contained the first written records demonstrating the laws of friction

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WeMX TIL that at the start of the infamous ‘Ice Bowl’ game, the referee tried to blow his whistle, but it froze to his lips. When he tried to pry the whistle off, he tore the skin off and he started to bleed. Instead of forming a scab, the blood simply froze to his lips.
M7KBB TIL that after The Exorcist, Linda Blair starred in a TV movie about teen alcoholism with then-emerging talent Mark Hamill and Bill Daniels. Directed by Richard Donner a year before The Omen was released.
Ooj07 TIL Morphogenesis, the math behind for example a giraffes spots or a zebras stripes. This theory coined by Turing found that these apparently random patterns have a mathematic order.
D1vXP TIL Franklin Delano Roosevelt was related to 11 of the U.S Presidents, 5 by blood, and 6 through marriage
0BZp TIL of the St Scholastica Day riot. In 1355 at Oxford a dispute between two students and a tavern keeper escalated to a two-day riot where 93 people died. The entire incident was over the quality of drinks being served at the tavern