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TIL In 2013, a scientist injected human brain cells into a mouse brain, which improved the mouse's memory and ability to learn.

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E1opp TIL that Sodium Citrate is used to make cheese really melty cheese by preventing the fats from separating. You can buy it and add it to any cheese. The best part is the chemical formula is Na(3)C(6)H(5)O(7).
BgWJL TIL about Len Koenecke, a Brooklyn Dodgers outfielder who died in 1935 from a blow to the head when he tried to seize control of an airplane
16wyD TIL A manga series by the name of Cooking Papa (no relation to the game series Cooking Mama) is one of the longest running in japanese comics: it was published from 1985 to 2021 with a total of 157 volumes.
dYO7 TIL That a British PoW captured by the Germans in World War I was freed to see his dying mother - but went back to the prison camp after giving the Kaiser ‘his word’ he would return.
e9xn TIL Charles Steinmetz, the Wizard of Schenectady, listened to a problem generator for two days before marking a spot and telling engineers to replace sixteen windings from a field coil. He itemized the $10,000 invoice thusly: Marking spot - $1; Knowing where to mark - $9,999.