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TIL Isaac Newton once inserted a large sewing needle "betwixt my eye and bone as neare to [the] backside of my eye as I could", to observe its effect on vision

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69Qdw TIL about Scheele’s Green (aka Schloss Green), an arsenic-laced artificial color very popular in the 19th century, showing up in artificial flowers, candles, toys, fashionable ladies’ clothing, soap, beauty products, confections, and wallpaper and leading to scores of deaths.
kOWag TIL one of the directors of the Japanese adult toy company Tenga is also masturbate-a-thon champion and has the world record for "longest time spent masturbating".
KD6B TIL drug lords Pablo Escobar and El Mexicano once bet $2 million on a soccer game. They each hand-picked a dream team of professional soccer players and flew them to Escobar’s home to play the game on his own private field (fast forward to 25:51).
5Y6B TIL that stoplights are yellow 1 second for every 10 MPH of the posted speed limit.
MeGxK TIL ‘swimhiking’ is considered an inventive recreational sport. The meaning is quite straightforward, just engaging in swimming and hiking carrying with you a change of clothes.