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TIL that in 1994 a stimulant was synthesised that can keep you awake for 48hrs at a time, without the need for catchup sleep and minimal side effects. It is only prescribed for narcolepsy but it has been suggested that it is used in the military to keep soldiers awake.

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v1NQD TIL In the Nazi Enigma code, a letter couldn't be represented by itself in the coded transmission. This flaw was exploited by Allied code-breakers and was a key part of the "Bombe" Enigma decoding machine designed by Alan Turing and engineered by Harold Keen.
mxe0y TIL of John Nash ( Portrayed by Russell Crowe in movie 'A Beautiful Mind') rejection of a long standing 2 century Economic Theory by Adam Smith. It lead him to win the Nobel Prize in 1994 for his own Game Theory. He got the idea with his friends in a bar with 4 average brunette & 1 pretty blonde.
j6GnM TIL: Individuals born blind have a significantly lower risk of developing schizophrenia compared to those who lose their sight later in life.
oBZvo TIL Tom Green won 5 Rasberry Awards for "Freddie Got Fingered" in 2002. He showed up in a white Cadillac, rolled out his own red carpet, and had to be dragged off stage because he wouldn't stop playing the harmonica.
dDpBr TIL Christopher Walken worked as a lion tamer at age 16. He performed in a circus alongside a lioness named Sheba, whom he described as “very sweet” and compared to a dog.He took the job one summer before becoming an actor, saying, “Who’s going to turn that down?”