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TIL During the Cold War, an early version of the American AIM-9 Sidewinder missile lodged itself into an enemy jet without exploding. The Russians were able to recover it after landing and create a reverse-engineered copy

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Z81Mp TIL Some trees growing in tropical rainforest do not have annual growth rings due to lack of seasonal changes (winter/summer or dry/wet).
1AJO TIL a man made a life vest to help his pet fish who could no longer swim.
KOy0R TIL: The reason none of The Beatles had mustaches then all of them had mustaches was because Paul badly split his lip and chipped a tooth in a moped accident. He grew the mustache to cover it up and the rest of lads joined him in solidarity.
ner19 TIL during a charitable auction in Kiev, Ukraine, Wladimir Klitschko auctioned off his 1996 Olympic gold medal to a buyer who bid $1 million. After the sale, the buyer immediately returned the medal out of respect for Klitschko.
ZJnB TIL Coke created Tab Clear as a “kamikaze” product solely to confuse consumers and kill sales of Crystal Pepsi. Within months Coke succeeded and both products were dead.