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TIL the first street fight caught on camera was in Halifax, England - 1901

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E1kP7 TIL that even at 0 Kelvin (absolute zero), atoms continue to vibrate due the Heisenberg uncertainty principle, which states that a particle's momentum cannot be precisely determined if its position is known, and vice versa. Basically, because the atom's position is known at 0K, its momentum can't be
YpwjP TIL there were supersonic passenger airplanes in the past that could go up to 1500 mph. However, our current commercial airliners only cruise at the speed of 575 mph
YA1Z TIL that pollution in London was once so bad, that some train lines used detonations as signals, because drivers couldn’t see the lights
KYYER TIL because Pillsbury forced "The Great British Bake Off" to be called "The Great British Baking Show" in the US, a lot of creative editing had to be done to obscure the logo in the show, including using computer-assisted VFX to change the text on the trophy
VM17B TIL that caterpillars don't "morph" into butterflies. Their bodies turn into a protein 'goop' within their chrysalis and rapid DNA-driven cell-division takes care of the rest.