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TIL our best theory of why we sleep is because our brain uses spine juice to wash away the doody proteins

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xVeeB TIL that 70% isopropyl alcohol is more effective than higher concentrations
W71KN TIL that George Lucas' wife, Marcia Lucas, won an Academy Award for Best Film Editing in 1977 for Star Wars. George Lucas has won zero Academy Awards.
R5N4Q TIL that until the early 1920s, most astronomers thought that the Milky Way contained all the stars in the Universe. Following the 1920 Great Debate between the astronomers Harlow Shapley and Heber Doust Curtis, observations by Edwin Hubble showed that the Milky Way is just one of many galaxies.
D1Kwv TIL barn owls are often mistaken for aliens. The incredible birds have a series of spooky-looking adaptations that help them survive and thrive in the wild, including long legs under all those feathers.
mxdBx TIL that red pandas are more closely related to seals and walruses than to actual pandas.