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TIL: The first air conditioner was used not for personal comfort but to remedy high humidity that interfered with the printing process

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GYA6G TIL that because a patch of clovers usually contains around 10,000 plants in 13 square feet, you only have to search an area around the size of an office desk to find a four leaf clover.
aKQ0 TIL of the Big Mac Index, which helps explain purchasing power parity to the layman. You compare the price of a Big Mac in one country to the price in another to determine if exchange rates are overvalued.
0ww8y TIL America’s “Time Lord” is Dr. Judah Levine, the guy who sets the time upon which all of our devices are synced. He’s done this job since figuring out how to keep perfect time in 1969.
PYaEn TIL during the early 1800's, the Mississippi and Ohio rivers were inhabited by sizeable populations of pirates.
nPyb TIL One of the first items sold on eBay was a broken laser pointer. When eBay creator, Pierre Omidyar, emailed the person who bought the broken laser pointer for $14.83 ($22.40 today) to make sure he knew it was broken, the man told him “I’m a collector of broken laser pointers.”