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TIL that ‘Persepolis’ - Marjane Satrapi’s autobiography of her childhood during the Iranian Revolution - has faced numerous attempts at banning the book from schools and libraries. Every attempt has failed.

J874 TIL the mantis shrimp strikes a blow at the speed of a bullet, which also produces cavitation bubbles (similar to boiling) in the water. The prey is thus struck twice - once by the blow itself, and a second time when the bubbles collapse. The blow is powerful enough to break aquarium glass as well.
oraA TIL that the first time Travis Barker performed with blink-182, he learned the entire 20 song set list in 45 minutes and played it flawlessly.
QNBDa TIL The serpent symbolizes both good and evil. In medicine, snakes are a powerful symbol of healing, such as medical sign of a snake wrapped around a staff, known as the Rod of Asclepius. In religion, the snake is most often a symbol of deceit and evil, such as the serpent that tricked Adam and Eve
R768 TIL that in the “Plato’s Stepchildren” episode of Star Trek William Shatner and Nichelle Nichols deliberately flubbed every take of a scene where they did NOT kiss, thus forcing the episode to go out with the kiss intact.
OGk6a TIL The spire on top of the Empire State Building was originally designed for docking aircrafts. The 102nd floor is observatory you can still access. 103rd floor which now is used for storage and equipment has a small door that leads to a narrow spiral staircase to the top.