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dD94r TIL: Gravity on the ISS is ~90% of the Earth's. It looks like they're on zero-G because both the astronauts and the ISS are in a continual state of freefall (orbiting the Earth).
BrQYD TIL JRR Tolkien was a supporter of the constructed language Esperanto, believing it could help unite Europe after World War I. He also created new languages like Elvish, calling it his "secret vice", and explained that for him the purpose was aesthetic rather than pragmatic