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10 INVENTIONS OF NIKOLA TESLA: Alternating Current – This is where it all began, and what ultimately caused such a stir at the 1893 World’s Expo in

antikythera-astronomy: “I want to reveal one of the greatest mysteries in science to you: Look at this gif, notice any patterns in the orbits? I’m talking about the speeds. The planets orbiting around the Sun get slower the farther out they go. Why...