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TIL that when an explosion's shockwave travels slower than sound, it is considered a deflagration, not a detonation.

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r8Vo TIL Two guys used their dead friends ashes as fishing bait and caught the worlds biggest Carp
5Y4xr TIL that Van Halen refused to make videos for their album 5150, so Warner Bros quickly cobbled together a video for the song "Dreams" by using stock footage of the U.S. Navy's Blue Angels. The cheap video became a surprise hit on MTV and the Navy began to use it as part of their recruiting efforts.
wox86 TIL that in 1965, philosophy professor Hubert Dreyfus, a staunch critic of artificial intelligence, boldly claimed that a machine would never beat a human at the game of chess. It would only be two years before the outspoken scholar was himself checkmated by an MIT-developed computer.
dVKE TIL that a Congolese Mbuti pygmy, Ota Benga, was ‘exhibited’ at the Bronx Zoo in the monkey house as an example of “earlier stages of human evolution” in 1906.
rRBNM TIL in 2009 an upset musician who had his $1200 Martin Guitar badly damaged by United Airlines and refused compensation, decided to write a song about it. In 10 days it gained 4 millions views and managed to knock 180 Million off United's Shares. The song was called "United Breaks Guitars".