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TIL that most of the heat a spacecraft encounters re-entering earth’s atmosphere is caused by compression, not friction.

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EgnG7 TIL that the person who discovered the double-helix structure of DNA was Francis Crick, who was high on LSD when he deduced it.
D1jwr TIL: The flight control computer on the F-22 Raptor is so advanced that the manual stated "you can maneuver the airplane with reckless abandon, without departing from controlled flight"
LNbZ TIL when the former commander of the Nazi extermination camp Treblinka, Kurt Franz, was arrested in 1959 a search of his home yielded a scrapbook with horrific photos of the massacre titled “Beautiful Years.”
16M7W TIL Pink's hit "Get the Party Started" was written by 4 Non Blondes's Linda Perry, and Pink said in 2017 "You'd have to ask Linda Perry if it's about ecstasy. I don't know what she meant with it. I still don't know if it's 'I'm coming out...' Or 'I'm coming up...' I don't even know what I sang."
VBXlQ TIL Shel Silverstein wrote the song "A Boy Named Sue." Johnny Cash's version is a cover.