Ai
Created page with "== Introduction == The steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force is transformed, by a connecting rod and flywheel, into rotational force for work. Image:Detail-70309.jpg|thumb|center|A vintage steam engine in operation, with visible pistons and flywheel.|class=only_on_mobi..."
