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Our fear of fevers made us terrified of even a slight increase in body temperature.

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POmO TIL the declassified SR-71 pilot’s manual states that it can cruise above mach 3.4… climbs faster than mach 3… and weighs a mind blowing “143,000 lbs”…more than the German King Tiger tank. It first flew in 1962 and is also the first stealth aircraft.
1MQD TIL Russia didn’t consider beer to be alcohol until 2011. It was previously classified as a soft drink.
9O1M TIL there is a US company, producing renewable oils on industrial scale, by fermenting algae.
wLQ67 TIL the 1947 classic "It's a Wonderful Life" was a box-office flop, and didn't become popular until the late 70's when its copyright expired and TV channels could play it for free.
8PBX TIL that people born in a public transport vehicle are entitled to free travel until they die in Warsaw, Poland