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TIL a brinicle is formed when sea ice cracks and leaks saline water to the open ocean. The heavier-than-water brine sinks to the ocean floor while freezing the fresh water it comes in contact with, growing downward. A brinicle reaching the sea floor can catch creatures like sea urchins and starfish

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v1ggD TIL that some bacteria can move twice as fast as a cheetah in terms of body length per second and have biological motors that can rotate up to 17000 RPM.
GARaj TIL about Elizebeth Smith Friedman, a pioneering female codebreaker who decrypted mob codes during prohibition and busted up Nazi spy rings in South America, yet was robbed of her due credit by J. Edgar Hoover and died in obscurity in 1980, never revealing her immense wartime service.
0dAO1 TIL The iconic theme from The Legend of Zelda for the NES was arranged in one night because Nintendo composer Koji Kondo initially planned to use Ravel's Boléro as the title theme for The Legend of Zelda, but had to change it because the song's copyright had not yet expired.
eopb TIL United Airlines lost a 10 year old girl on a layover flight in Chicago, she asked for help 4 times before her mother (in another state) got an employee to finally get her child to her destination
kmyg TIL the original voice for Siri was a woman named Susan Bennett. She was paid hourly to record nonsense phrases for a third party company, and only later learned that she had provided Apple with “all of the sounds of the English language”, which they could then formed into any response.