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TIL that the earth's mantle is predominantly solid due to extreme pressure, though it behaves as a "viscous fluid" on geologic time scales.

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Br09K TIL that a second is technically defined to be "9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom”.
awL8N TIL that courtroom artists in the UK & Hong Kong draw their sketches from memory as they are not permitted to draw in the court.
jN0JN TIL: Until the late '60s Disneyland banned male guests who had long hair
e0EVb TIL that coca cola altered it's formula to introduce new coke, faced backslash from public, launch coke with old formula under brand coca cola classic
oB9KE TIL that Oxford University tradition is that all students wear a carnation as well as academic dress to their exams. The colour of the carnation is white for the first exam, red for the last and pink for each one in between.