› added 3 months ago

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TIL about Gabriel's horn, is a type of geometric figure that has infinite surface area but finite volume

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via reddit.com

4X4lX TIL While Pope Gregory IX was in power, he declared that cats were to be associated with devil worship and had them exterminated. The disappearance of cats is believed to have helped rats spread Bubonic plague or black death.
oB4OL TIL: in the late 1960s, US plane hijacking had become so commonplace, specifically requests to be down to Cuba, but the industry so resistant to security changes, that a suggestion was seriously proposed to build a fake Havana airport in southern Florida to fool the hijackers into capitulation
jNdZE TIL that Coca-Cola from McDonald's tastes different compared to plastic bottles and other restaurant chains thanks to unique storage system, water filtration, syrup-to-water ratio, and cooler temperatures
oBDwK TIL of Hazel Hill, a 13 year old schoolgirl who influenced the design of the Spitfire fighter aircraft. She and her father did the calculations that allowed for the aircraft to be fitted with 8 guns instead of 4. The aircraft became famous for winning the Battle of Britain.
mOMO TIL that the price of college textbooks has risen faster than the price of houses and inflation. AND there is a company that provides FREE online college textbooks that are almost identical to the ones we are paying top-dollar for.