+A reciprocating engine is a [heat engine](/wiki/heat_engine) that converts pressure into [rotational motion](/wiki/rotational_motion) through the back-and-forth movement of [pistons](/wiki/piston). This fundamental [machine](/wiki/machine) powers countless devices, from vehicles to generators, by harnessing energy, often from [combustion](/wiki/combustion).
+## See also
+- [Internal Combustion](/wiki/internal_combustion)
+- [Steam Engine](/wiki/steam_engine)
+- [Crankshaft](/wiki/crankshaft)
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