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TIL that a 500 page book contains only 0.53 calories

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wLXQ1 TIL a critical mass of uranium assembled itself in what is now Gabon, forming the first and only natural nuclear reactor in history. It fissioned for hundreds of thousands of years before fizzling out.
PZGn TIL There’s an episode of “Batman: The Animated Series” in which Scarecrow tries to poison Gotham’s water supply by putting fear toxin in it; a plot device used by the movie “Batman Begins.”
1a558 TIL Chipmunks and other small rodents have fast reaction time because they process light faster. They see the world in slow motion.
Elj0 TIL that in 1934 undershirt sales dropped 80% after Clark Gable took off his button-down in It Happened One Night revealing his bare skin.
8arZP TIL that the Leviathan of Parsonstown (aka. Rosse six-foot telescope) was the biggest telescope in the world until 1917 when the Hooker Telescope was constructed, he was built by William Parsons in County Offaly, Ireland and you can visit a reconstructed version of the telescope today