Pulleys boast a fascinating history and incredible physics facts. First, the legendary ancient Greek mathematician Archimedes famously used a massive compound pulley system of his own design to single-handedly pull a fully laden, heavy warship out of the water and onto dry land. Second, pulleys are one of the Six Simple Machines identified by Renaissance scientists, alongside the lever, inclined plane, wedge, screw, and wheel and axle. Third, your own human anatomy utilizes tendon pulleys (like the trochlea in your eye socket) to redirect muscle forces. You can verify these historical anecdotes through history of science and mechanical engineering texts.
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