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TIL John Michell - called both the father of seismology and the father of magnetometry. “One of the greatest unsung black scientists of all time”, he was the first person known to propose the existence of black holes, earthquakes travel in waves. No one knows what he looked like.

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R5Rej TIL that the dogs in competitive agility don’t rehearse the course ahead of time. The courses are randomized at each competition, and the trainers (without their dogs) only see the layout beforehand on the same day. When the dog runs the course they are literally seeing it for the first time.
rR5P4 TIL of Dipprasad Pun, a Nepalese soldier during the War of Afghanistan who was attacked by 30 insurgents. Believing he was about to die, he expended all 400 rounds of his ammunition, launched 17 grenades, detonated a Claymore mine, and killed an attacker with his tripod, causing them to retreat.
a8xZA TIL that Dolly Parton's 1972 song "My Tennessee Mountain Home" was named an official state song of Tennessee in 2022.
4XgX6 TIL that as a white belt, Paul Walker told his BJJ coach that he would get his black belt "even if he needed to get it in his coffin", shortly after Walker's death, that same coach awarded Walker his black belt and told his father he could put it in his coffin.
KYAwE TIL igloos can have an interior temperature of 19-61 degrees Fahrenheit amid exterior temperatures of -45 degrees. And if constricted properly they can withstand the weight if someone standing on top of them.