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239

TIL that brown doesn't exist as a colour and brown light is physically impossible.

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17WV TIL you shouldn’t breathe on your lens to clean it, your breath contains harmful acids that could damage the lens coating. (x-post from Photography)
5Vy18 TIL Pope Pius XII once asserted in a speech that the Big Bang theory scientifically proved that the universe was created by a divine creator. Horrified, the physicist Georges Lemaître convinced the Pope not to make any further statements connecting his theory and theology.
694YY TIL: In 1962, a bear caused a false alarm at a US air base and almost caused nuclear war
4XbM6 TIL that from 1956 to 2008, the world record for the most-attended baseball game was held by Australia's Melbourne Cricket Ground, which hosted a crowd of 114000 for a game between the Australian National Team and a US Armed Services Team
1axLV TIL that Marvel's X-Men, and mutants in the Marvelverse in general, have been depicted as metaphors of RL social issues (esp. LGBT and the Legacy Virus = HIV arc).