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TIL that Tiny Hole in Airplane Windows is a safety feature called the breather hole is used to regulate the amount of pressure that passes between the window’s inner and outer panes

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Wk65X TIL pre-dissolution Soviet comedians had to have all their jokes approved by the Department of Humor. Jokes about politics, religion, and sex were banned, which left mostly jokes about animals.
eYB4 TIL that a cowlick is called a cowlick because cows lick their young and cause spiral patterns in their coat.
NXGlM TIL in 1783, Jean-François Pilâtre de Rozier made the first manned free balloon flight. He later died in 1785 attempting to fly across the English Channel, becoming the first victim of an air crash.
oROb8 TIL that during the Cold War, the U.S. Army trained elite soldiers to deploy nuclear weapons by hand. They developed special rigs for Special Forces paratroopers to jump with bombs strapped to their chests.
XEej TIL In 1998 a Japanese reality show locked a naked man in an apartment until he won one million yen worth of prizes through mail-in magazine contests. He was there for over a year.