› added 1 year ago

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TIL that pea crab, tiny parasitic crabs live in oyster and other shell fish, will rub the edge of a shellfish containing a female pea crab for hours until the shellfish opens and allows the male pea crab to enter

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AL0B TIL Theophilus Van Kannel, the guy who invented revolving doors did so because he hated chivalry, especially the idea of opening doors for women.
N7bLJ TIL the heavily-armed US security forces meant to protect Category 1 nuclear material (e.g. plutonium) are employed by private companies
68QX TIL that before Jaws, there was Shark!, starring Burt Reynolds… Someone decided it was a great idea to use live sharks during filming, and one stuntman was killed…
ANXXd TIL in 2013, astronaut Chris Hadfield took a picture of Berlin at night from the International Space Station which showed the division between the former east and west through its streetlights. East Berlin looks orange due to sodium vapor lamps while West Berlin looks white due to fluorescent lamps.
Eg8Pd TIL that Adolf Hitler was prescribed with different medications for his flatulence, including one made with extract from human excrement.