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TIL The Gyrojet was a family of firearms that fired tiny rockets called Microjets. In theory the rockets accelerate over a distance making them non-fatal at close range and fatal at greater distances.

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EleX TIL Julian Lennon had to buy the letters he wrote to his father (John Lennon) at an auction, because Yoko Ono wouldn’t give them to him.
WWaX TIL during the 14th century, medical experts from Paris declared bathing a health concern because it was claimed warm water opened pores and made people more susceptible to bubonic plague
xDkw TIL that LASIK eye surgery uses the same algorithm NASA created to dock space shuttles in order to properly align the laser to the eye.
AAj7 TIL that a 1997 poll showed that Americans thought NASA’s funding accounted for 20% of the federal budget. In fact, NASA has received one cent or less per every tax dollar since 1975. Currently, they receive a $.005 cents per dollar.
jNRgp TIL After J.D Salinger, author of The Catcher in the Rye, served in World War Two, he was hospitalized with combat stress reaction for a few weeks. He later told his daughter "You never really get the smell of burning flesh out of your nose entirely, no matter how long you live."