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TIL that in 1945, Kodak accidentally discovered the US were secretly testing nuclear bombs because the fallout made their films look fogged

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bPbQ TIL there is still a lava-like molten mixture of nuclear reactor core that remains from Chernobyl - 300 seconds looking at it and you would be dead in two days
DaQr TIL: America spends $34mil a year of taxpayer money to broadcast TV and radio to Cuba from Miami, FL. These broadcasts reach less than 1% of Cuba’s 11million residents. Broadcasted signals are jammed regularly by the Cuban government.
LkYmr TIL that the first use of an external defibrillator on a human was in 1947 by Claude Beck. The portable version of the defibrillator was invented in the mid-1960s. This machine was a revolutionary idea that has saved hundreds of thousands of lives.
8k6X TIL the average American spends 33% of their waking hours listening to music
wL9eP TIL: In 1991, a plane crashed after an inspector from afternoon shift started repair by unscrewing 30 screws, but failed to pass the information when changing shifts. The plane then fell from 3 km height, killing everyone on board.