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TIL the pinching force of "29 coconut crabs collected from the northern part of Okinawa Island" in Japan "ranged from 29.4 to 1765.2 N." "During our field study," write the researchers, "obtaining data for analysis was challenging, as the large claws of this crab pinched us on multiple occasions."

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8LBZ TIL that in 1921, 300 affluent black people were massacred when white people rioted and razed “Black Wall Street” - Greenwood, Tulsa.
4kKlo TIL "What We Do in the Shadows" had an enormous behind-the-scene joke, with the IT guy Stu - who's played by a real IT guy called Stu- was told he's needed for IT purposes on set, with his role in the script being kept secret from the entire cast and him repeatedly told everyday to film a bit more.
Wk1JY TIL that the King of Jordan, Abdullah bin al-Hussein (then prince), made a cameo in an episode of Star Trek: Voyager in 1996
9Y8B6 TIL that President LBJ was a competitive womanizer, and whenever people mentioned Kennedy's many affairs, LBJ would bang the table and declare that he had more women by accident than Kennedy ever had on purpose.
QJ6bp TIL Cashews contain Urushiol , the allergen in Poison Ivy that causes dermatitis. It's mostly in the shells, so most people can safely eat properly prepared nuts. In 1982, shell contaminated nuts were sold in a Little League fundraiser, and over 20% of the people who ate them developed a rash.