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TIL each element on the Periodic Table corresponds to one solution of the main equation in the field of quantum mechanics & that the entire field of chemistry emerged from that single equation.

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R7Odl TIL they had a swear jar on the set of My Girl for when Jamie Lee Curtis, Dan Aykroyd or Howard Zieff would curse. The ‘f’ word was $10 and the ‘s’ word was $5, which Macaulay Culkin and Anna Chlumsky would split. At the end, Jamie owed about $200 each, Dan about $50 each and Howard about $60 each.
D1bbJ TIL that word boondock come from Tagalog bundok ‘mountain.’ American soldiers stationed in the Philippines adopted the word in the early 1900s, shifting the meaning to refer to "an isolated or wild region."
v19W4 TIL that in April 2021, Jaleel White, who played Steve Urkel in 'Family Matters', launched his own cannabis business. The ItsPurpl line, which would be produced in partnership with 710 labs, would include the 'Purple Urkle' and 'Stefan' strains.
xV1Z7 TIL of the Bitter electromagnet, the strongest example of which produces a field 9 times stronger than an MRI machine, consuming almost 10% of a nuclear power station’s output to do so. Smaller versions were used to levitate frogs.
p8KGO TIL In the mid-1800's Italy installed several British built 100-ton, 450mm black powder cannons on it's newest warships and in response the British bought several from the same manufacturer to install on the island of Malta. None of the guns were never used in any conflict and only two exist today.