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TIL the Tetris theme is actually a Russian folk song called “Korobeiniki.”

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mYNx TIL The Red Cross sells the blood that people donate
J1j9k TIL about Shade Balls. Shade balls are small plastic spheres floated on top of a reservoir for environmental reasons, including to slow evaporation and prevent sunlight from causing reactions among chemical compounds present in the water.
p8loQ TIL DNA evidence shows that groups in the Amazon are more closely related to indigenous Australians than Native Americans
rJ00 TIL 30% of the world population cannot drink wine – they get severe headaches
nWl77 TIL that Jimi Hendrix was in the US Army for a short stint in the early 1960's, but he eventually got kicked out due to his disinterest and behaviour problems.