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Wheel and Axle


The wheel and axle acts as a lever rotating around the fulcrum or the center point in most uses. You could also use it where the wheel could be fixed and axle spin.

The wheel was first patented in Ur, Mesopotamia 3500 BC by a potter named Sumerian Sam. [ Patent #1]

First Wheeled VehicleLater in the same town used in chariots around 3200 BC.