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TIL that an octopus has 3 hearts and blue blood

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E1opp TIL that Sodium Citrate is used to make cheese really melty cheese by preventing the fats from separating. You can buy it and add it to any cheese. The best part is the chemical formula is Na(3)C(6)H(5)O(7).
jg5p TIL Jimi Hendrix was once invited to play with Cream alongside Eric Clapton. In the middle of the show, Clapton walked off stage. He was found in the back shaking angrily and smoking a cigarette. When asked what was wrong, he simply replied, “You never told me he was that fucking good.”
N7gb8 TIL in the early 1900s, Dolly Korschel kept a secret lover in her attic for years, had the lover kill her husband after a fight, continued keeping the lover in her attic, and was charged with murder 8 years later but set free because there was a 7-year statute of limitations on murders at the time.
LQ0NQ TIL Mothers Having Fewer Children is the Primary Cause of Changes in Population Growth
gjDD TIL that the actual Navy pilot that flipped the bird at the MiG pilot in the movie Top Gun was Scott Altman, who later was selected an astronaut by NASA and flew on 4 Shuttle missions