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WHAT IS RECIPROCATION MOTION
Reciprocating motion is a back-and-forth motion which repeats over and
over again, or an up-and-down motion. Old water pumps, the kind with
the big, long handles need reciprocating motion to draw water up out of
the well with a piston and a one-way valve. Steam locomotives convert
reciprocating motion driven by the expansion of steam inside piston
chambers to rotary motion by cranking rods attached to the rims of the
(republished on 07/11/06)
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