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TIL the first computer mouse was made of wood

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wQEo TIL the paper used for currency in the United States is made out of 75 percent cotton and 25 percent linen.
rR7w TIL that during WWII Boeing camouflaged their production plant by building a fake town on the roof.
p8GD8 TIL the founder of the Smithsonian, James Smithson, was a British scientist who willed his fortune to his nephew and in the event his nephew died with no heirs, to the US government to found an "Establishment for the increase and diffusion of knowledge among men"; having never visited the US.
XEMMX TIL that Natalie Portman is a published researcher in Psychology. Her first scientific paper was co-authored while still in high school. It was entered into the prestigious Intel Science Talent Search and made it all the way to the semi-finals.
vEMK TIL It takes 20 minutes to produce a tin of Pringles, and only 11 seconds to fry each chip