We all know of pulleys and levers–simple machines that move massively heavy objects with just a small amount of force. Archimedes said “Give me a place to stand and with a lever I will move the whole world.” But what about the Egyptian Pyramids? Stone Hedge? Did they use the levers we know nowadays? Or did they have something simpler? Retired construction worker Wallace T Wallington might have the answer. Wallington has demonstrated how a[…]
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