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TIL Water is used in rice fields to prevent weeds. Rice doesn't need that much water, but since it can prosper in such conditions it's a natural protection against weeds which cannot survive under such circumstances.

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epOPn TIL that the world’s quietest room is so silent that you can hear your own blood flowing and bones moving. The Anechoic Chamber at Orfield Labs in Minnesota holds the Guinness World Record for being the quietest place on earth with a background noise reading of -9.4 decibels.
wL7G6 TIL a US law firm set up honeypots on torrent-sharing site The Pirate Bay and then sued people who downloaded their torrents. The matter reached the FBI and the pirate site accepted to collaborate with the feds resulting in the crooked lawyers getting jail time.
W7JLX TIL slaves brought to America on 1859 in the Clotilda founded after the Civil War the city of Africatown, Alabama, retaining their West African culture until the 1950s
6EglX TIL of BEEcosystem, a company that let's you install a beehive in your living room to help declining bee populations.
LVDV TIL when he was 12 years old, Fidel Castro wrote a letter to Franklin Roosevelt. He asked him for a $10 dollar bill because he had never seen one before.