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TIL Mister Rogers poured the wax that made the 100 billionth Crayola crayon.

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9YERD TIL that even a minute long power failure at semiconductor factories can cause millions of Dollars in losses.
KOMDB TIL after his friend's eyes froze over from removing fogged goggles during a test flight, John Macready began working with Bausch & Lomb to create goggles better suited for flights into the upper atmosphere. Using his original shape, tint and fit, the design would become the Ray-Ban Aviators.
wQe7 TIL Prince used a picture of Dave Chappelle dressed as Prince for a 2013 album cover
Y7JMA TIL that Lake Kariba, on the border of Zambia and Zimbabwe, is the world's largest artificial lake by volume. It contains 43 cubic miles of water and has a surface area of 2,150 square miles
xvdD TIL that silverfish have an unusually adorable three-step mating ritual that closely mirrors the structure of standard romantic comedies.