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TIL an SR-71 Blackbird once flew from Los Angeles to Washington DC in 64 minutes. Average speed: 2,145mph.

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BZrW TIL that transparent aluminum, which has existed since 1981, can stop a .50 caliber bullet.
Mew9B TIL of the match at the 1995 French Open between Jana Novatna & Chanda Rubin, in the 3rd set Novotna led 5-0, 40-0, the biggest lead possible in a tennis set, but somehow managed to squander it blowing nine match points and losing the match
LQ6Km TIL that in Goiânia, Brazil, in 1987 a radiotherapy device was stolen from an abandoned hospital. The people who found it broke it open, exposing the 93 g of radioactive caesium chloride and leading to the contamination of 250 people, 20 of whom experienced radiation sickness and 4 of whom died
jlwR TIL that David Yost, the original Blue Power Ranger, left the show due to the harassment he received from creators, producers, writers over his being gay, causing him to have a nervous breakdown upon leaving. “The reason that I walked off is that I was called ‘f—–‘ one too many times,” Yost says.
9Yb7Q TIL that Human milk contains components that are indigestible to human infants. Instead, these components seem to have evolved specifically to feed important gut bacteria.