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TIL in 1911, physicist George de Hevesy suspected his landlady was bulking up his meals with leftovers; he proved it by sprinkling radioactive material over his dinner and detecting it in the next day’s portion

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OGa61 TIL about Ahimsa silk (or peace silk) which uses a nonviolent methods to breed and harvest silk worms where the pupa is allowed to hatch and the leftover cocoon is used.
yQOgw TIL of Clive Wearing, who is incapable of forming new memories, and thus every 20 to 30 seconds has the experience of waking from a coma. He keeps a diary, and page after page is filled with some variation of the same text: "Now I am awake."
peDb TIL The writers of Rugrats were huge fans of Doctor Who, and actually based Tommy off of the Doctor, as a charismatic and whimsical leading character. Along with his trusty screwdriver!
Y7RN7 TIL from 80s-00s George Michael was the most played artist on British radio.
YyAG TIL the richest superhero is actually Black Panther, who has an estimated of $500 billion, whereas Tony Stark is worth $100 billion and Bruce Wayne $80 billion