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TIL it is illegal in some states to collect, store, and use rainwater

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oRp47 TIL that "Schrodinger's Cat" -- the famous thought experiment in quantum mechanics where an unobserved cat is both alive and dead -- was not proposed by Erwin Schrodinger to highlight the principle, but rather to mock its absurdity.
GYem4 TIL: When Pokémon go was first released, the game improved the US’s activity levels by 144 billion steps in just 30 days
W7xO4 TIL In 1991, moonfish jellyfish travelled into outer space on the Space Shuttle Columbia.The jellyfish multiplied in space. When they came back to Earth, the scientists discovered that the space-born jellyfish couldn't figure out how to deal with gravity.
R5Vaj TIL that with regard to a 24 hour day, divided into two periods, a.m. comes from the Latin ante meridiem, translating to "before midday", and p.m. from the Latin post meridiem, which translates to "after midday."
Oo17R TIL When Sweden won the ice hockey world championships in 1957 in Moscow, the Soviets didn't have the national anthem ready. The Swedish team decided to sing it over the stadium's PA system, but didn't know the words to the anthem, so instead they sang the Swedish drinking song, "Helan går!".