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TIL about Neils Bohr's Gunslinger Effect, which shows that for many competing actions (like two Western gunslingers drawing a gun) the reactor acts faster than the first actor

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awVlN TIL the Rolls-Royce Merlin exhaust gases exited at 1300 mph (2100 kph) and when angled backwards produced 70 pounds-force (32 kg-f) of thrust. This increased the Spitfire's top speed by about 10 mph (16 kph).
Gpdj TIL that in 1916 an amendment was proposed to the Constitution that all acts of war would be put to a national vote. Anyone voting yes would have to register as a volunteer for service in the US Army.
KEpE TIL A guy performed a DIY sex change in his bathroom and got it almost perfect.
D1xkr TIL Shakespeare coined or popularized many of the phrases we use today. Some of these include: “Good riddance. In my heart of hearts. Laughing stock. Wild-goose chase. Devil incarnate. Brave new world. As luck would have it. All our yesterdays. Break the ice. Full circle.”
7rJKL TIL that in response to the cholera outbreak of 1854, Chicago engineers decided to install a sewage system by raising the grade of the city by up to 14 feet. That is, they literally put buildings on stilts and buried the new sewer pipes under the buildings.