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TIL The fist bump originated in the US in the 1970s likely as an imitation of 2 boxers bumping gloves before a match. The first fist bump recorded in Australia was in 1990 between two opening batsmen, Mick Tyler and Bob Minney. From there it spread world wide and became popular among all athletes.

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PjNJ TIL a jealous wife in China chopped off her cheating husband’s penis as he slept, then snuck into his hospital room after he had it sewn back on — and hacked it off again and tossed it out the window.
8a8rb TIL the Demon Core was a piece of plutonium intended to be used in a third atomic bomb to drop on Japan... due to lax saftely standards, its criticality was being regulated with just a screwdriver, and two physicists were killed maintaining it
5XBr TIL that in 1980, a US Airman dropped a wrench socket, which fell 80 feet and pierced a Titan II missile, causing rocket fuel to leak and eventually explode, ejecting the nuclear warhead to the edge of the launch complex.
0wGZA TIL that due to alcohol's faster evaporation rate, the famous Drinking Bird Toy will eagerly drink whiskey twice as fast as water.
ne9RB TIL the earliest known sources of uranium were in Naples, Italy & Jáchymov, Czech Republic. Uranium is 40 times more abundant in the Earth's crust than silver. 1 KG of uranium-235 can produce as much energy as 1.5 million KG of coal.