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NEVER be confused by HORSEPOWER and TORQUE again - HP and TORQUE EXPLAINED in the MOST VISUAL WAY

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3D Printer Gearbox - Spinning it FAST

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Making A Billion-Year Lego Clock

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What Gear Shape Meshes With a Square?

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Homemade a Super Powerful Gearbox Full Metal

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Let's Settle This. Bore vs Stroke - It's Not That Simple

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Spinning Levers - How A Transmission Works (1936)

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Lego Suspensions Survive on the Treadmill - Making and Testing