The wheel and axle together is a simple machine. We see them all over the place. Without this simple machine we would not be able to drive to other places quickly, or go on a train. Find out all about this simple machine in this title.The wheel and axle together is a simple machine. We see them all over the place. Without this simple machine we would not be able to drive to other places quickly, or go on a train. Find out all about this simple machine in this title.
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