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TIL A Marine called the Barrett Firearms customer service line while in an active firefight to get help with his rifle.

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jQMQ TIL Sex alleviates headaches so effectively that some people have started to sex as a treatment for headaches
GGm4 TIL 20 years ago a woman bought a Boeing 727 for $2,000. Four months and $28,000 later, she turned the 727 into her home.
N7Y4Q TIL about Corín Tellado, a Spanish author who wrote more than 4.000 novels during a six-decade career. She sold more than 400 million copies worldwide, and in 1962 Unesco declared her the most-read Spanish author, alongside Miguel de Cervantes.
dDE4r TIL Percieved sourness is caused not only by free protons, but also by protonated carboxyl groups. That means that organic acids will taste sour, even without really low hp. This explains why even some weak bases like sodium acetate taste sour, because the acetate ion will protonate.
8el9P TIL about the lia radiological accident, where three Georgians discovered two abandoned radioactive sources in the forest around which "there was no snow for about a 1 m (3.3 ft) radius, and the ground was steaming", they then decided to use them as heat sources for the night. One died.