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TIL that the details of the Manhattan Project were so secret that many workers had no idea why they did their jobs. A laundrywoman had a dedicated duty to "hold up an instrument and listen for a clicking noise" without knowing why. It was a Geiger counter testing the radiation levels of uniforms.

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gMJo7 TIL it's possible for complex communications with someone who is dreaming. Researchers of one study found two-way communications during REM sleep is possible when study participants (having confirmed lucid dreams) answered questions correctly via eye movement - even solving simple math equations.
kJ8lg TIL More than four in 10 college students end up in developmental math and English classes at an annual cost of approximately $7 billion, and many of them have a worse chance of eventually graduating than if they went straight into college-level classes.
4XQnN TIL that India’s population is so large that it’s largest minority group (Muslims) numbers more than 195 million making it the third largest muslim country in the world
WvaN TIL: Hells Angels attempted to Kill Mick Jagger in 1975. They tried to drive a boat up to the Long Island Mansion he was staying at, however, the boat sank and the Hells Angels ended up having to swim for their lives.
NJae TIL That, over the course of 144 episodes, only one character in Buffy the Vampire Slayer died of natural causes. The following episode, which examines Buffy’s mourning/reaction to the first death she couldn’t have prevented, is consistently ranked as one of the best television episodes of all time.