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TIL that famous anarchist Peter Kropotkin once escaped from a Russian prison, evading searchers by going to one of St. Petersburg's fanciest restaurants with his friends, where the authorities wouldn't think to look for an anarchist

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d8rjd TIL that the clicking noise sperm whales use to communicate is so loud that it can be heard by other whales thousands of miles away and can make a human body intensely vibrate to the point of death.
ADyQd TIL about a Buddhist God(Guanyin, Kannon) whom was originally a male, can turn into a male/female/genderless depending on the problems he/she/they had to solve
4XJ8b TIL that in 1997, Cornell University created the world's smallest guitar at 10 micrometers. This is roughly the size of a single cell.
eJ96 TIL there is a reason for peeling stripes on a cucumber besides making it look fancy. The skin is slightly bitter and can overwhelm the mellow flesh part. Removing a portion of it reduces the bitterness without taking away all the flavor and nutrients.
P1W6w TIL Nitrogen bubbles in the synovial fluid get trapped then released from moving joints and stretches, causing painless noises. Crepitus is harmless when not caused by an injury, medical condition or disease