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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.

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GYdG4 TIL DisneyWorld has a Mosquito Surveillance Program designed to track mosquitos using carbon dioxide traps. They also employ chickens and test their blood for mosquito born illness and eradicate them. TIL you won't get bit by mosquitos at Disney World, even though its in the middle of a swamp
RDWj TIL - US Air Force honours their fallen with a fly-by salute, called “The Missing Man” in which the formation flies very low and the leader’s wingman pulls up rapidly, which represents departure to heaven. This is an aerial equivalent of riderless horse.
L5j0 TIL that In 2003, Gary Ridgway admitted he was the Green River Killer, having murdered 49 women in the Seattle area. Ridgway had passed a lie detector test in 1987, while another man - who turned out to be innocent - failed.
MedKK TIL a southern tradition that says eating leafy green vegetables like collard greens on New Year's Eve brings good luck. Meanwhile, eating lobster is supposedly bad luck in some cultures because lobsters move backwards, symbolizing a year of setbacks.
0wnxy TIL Eliot Ness, famous for taking down feared gangster and bootlegger Al Capone, died a penniless alcoholic that no one had heard of. His autobiography was published after his death and only then did he become famous with TV shows and movies being made of his exploits.