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TIL Tardigrades are tiny creatures that are capable of removing the majority of their body water, allowing them to survive in extreme conditions; atmospheric pressures of up to 600 times that of the surface of the earth, 300 degrees below zero and even the vacuum and radiation in space.

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nWYW TIL the Moon is about 400 times smaller than the Sun, but it also just happens to be about 400 times closer. The result is that from Earth, they appear to be the same size.
4k8La TIL about eunus. A Roman slave from Syria who claimed to be a prophet of the goddess atargatis and led the slaves in revolt during the first servile war. He proclaimed himself king, took over several cities around Sicily and succeeded in defeating the Roman’s for several years before being defeated.
nMQG TIL someone used Super Mario Maker to build a level that is a functional calculator, though it can only add two digits between zero and 7 and takes about two minutes to generate an answer.
W4pd TIL that the Concorde used more fuel taxiing to the end of the runway than a Boeing 737 needs to fly all the way from London to Amsterdam
W9oo TIL, that mathematician, George Dantzig solved a simplex linear problem, that was thought to be impossible to solve, by accident, because he arrived late to class, and thought the problem on the board was a homework assignment.