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TIL that a cowboy hat's brim is curved up to prevent getting caught in the rope

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Z84rR TIL about the dihydrogen monoxide parody, the action of calling water by an unfamiliar chemical name, listing "side effects" which are just scientific terms for harmless water-related bodily processes, and calling for it to be banned. This demonstrates the importance of scientific literacy.
P1ZlL TIL that in 2008, a gamma ray burst was observed from 7.5 billion light years away. It was visible with the naked eye for about 30 seconds, and if viewed from the same distance as the sun it would be 21 quadrillion times brighter.
b9JM9 TIL During the 1984 Summer Olympics in Los Angeles, McDonalds ran a nationwide promotion offering free products every time a US athlete won a medal. It turned into their most costly promotion ever when the Soviet Union, the powerhouse team of the time, boycotted the event, letting the USA win big.
8aO6a TIL the longest named muscle is the 'levator labii superioris alaeque nasi'. It's the muscle that is used when sneering.
7XpZ TIL: The first 7 Aftrican Americans elected to Congress were all Republican