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TIL the expression 'to lick into shape' originated in the ancient belief that bear cubs are born as formless lumps and need to be licked into their proper shape by their mothers

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Gdv5 TIL that an acronym is if you pronounce letters in the abbreviation as if they were a word. If you read the letters in the abbreviation individually, they are called “initialisms”
KY6VQ TIL researchers from the University of Applied Sciences in Switzerland calculated the value of pi to over 62 trillion digits taking over 108 days to complete the calculation.
DDQD TIL that the two songs whose tempo is closest to the optimum for performing CPR on someone who has just suffered a heart attack - 100 bpm - are “Stayin’ Alive” and “Another One Bites The Dust”
dA6d TIL the CIA lost a plutonium powered device in the glaciers that birth the Ganges River (Nanda Devi, 25643 ft) trying to spy on Chinese nuclear missile activity. There is still concern regarding the location and integrity of the radioactive material.
Wd6o TIL that in 2001 a man created and installed a street sign above a highway after getting lost. The sign was left up for more than 8 years because it matched the other signs so perfectly.