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TIL Augustin Mouchot, a French math teacher, was a 19th-century inventor of the earliest solar-powered engine. It converted solar energy into mechanical steam power. In 1878 he showcased his solar-powered concentrator at the Exposition Universelle in Paris & took home the gold medal from the fair.

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B6Qd TIL even a small amount of Grapes or Raisins can be fatal for dogs. No one knows exactly why.
neL17 TIL Producer Deborah Forte of Scholastic Entertainment says they were inspired to create the Magic School Bus TV show after learning that many girls and minorities were opting out of science at young ages.
kMO7 TIL you only need 40 digits of pi to calculate the circumference of the observable universe to a margin of error of 1 hydrogen atom
DGaY TIL that domesticated llamas that are given too much attention by humans can suffer from a psychological disorder called Berserk Llama Syndrome, where the llamas view their handlers as fellow llamas, and actually become more violent and aggressive towards them
OoQd7 TIL the 1st season of the kids show Courage the Cowardly Dog ended with the main character (Courage) becoming a puppeteer for his owners (the two main protagonists)'s lifeless bodies after they were turned into marionettes. He goes mentally insane from living alone after a while.