› added 5 years ago

90

TIL that in 1924 China's main currency was the Mexican dollar

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woZvM TIL Fireflies produce light in special organs in their abdomens by combining a chemical called luciferin, enzymes called luciferases, oxygen and the fuel for cellular work, ATP. Entomologists think they control their flashing by regulating how much oxygen goes to their light-producing organs.
8ewoa TIL the idea of machines gaining full consciousness and overthrowing humanity goes back all the way to 1863
QJWvM TIL That Jack Daniel's HQ is in a dry county so their product is not available for purchase in the area. Also TIL: US has dry counties.
OojW4 TIL a German stranger in a street interview predicted Germany's 7-1 win over Brazil in 2014
E1y8o TIL that Elizabeth Blackwell was accepted by mistake by Hobart College (then Geneva Medical College), and she matriculated. Many MD’s refused to work with her, but she persevered and graduated.