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TIL Napoleons military genius was considered to be so enormeous that the entire stategy of the Coalition that defeated him (the Trachenberg Plan) depended on retreat wherever & whenever they faced him and only attacking his underlings until they built up an overwhelming numerical troop advantage.

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KOGDw TIL “Our local group alone is 10 million light-years in diameter, containing the Milky Way and Andromeda galaxies, along with about 50 dwarf galaxies, but that only accounts for 0.00000000001 percent of the observable universe.”
gMJ0y TIL there's a way to mathematically measure gerrymandering. It's called partisan symmetry.
vdoL TIL that due to the inverse square law, the terrestrial TV and consumer radio signals which leave our planet become indistinguishable from background noise after just a few light years
gjW8 TIL Soviet scientists tried to create nuclear 7.62 mm bullets for AKM/PKM. They used californium-252 instead of uranium or plutonium. Each bullet had enough power to destroy a tank (100—700 kg of TNT equivalent)
XEvL8 TIL what NAMBLA is.