|MadSci Network: Engineering|
The basic difference is this: A motor (or, more formally, an electric motor) is a device which converts electrical energy into mechanical energy. They come in all variety of size and type. It is rather easy to build a simple one, and I am sure that any good science store would have kits to do that, or books to guide you through a home project. An engine (or, more formally, a heat engine) is a device that converts chemical energy or heat energy into mechanical energy. The three main types are the internal combustion piston engine (like the engine in your automobile, gas turbine engines (like the powerplants used in jet aircraft), and steam engines. There are kits available for steam engines (check out Edmund Scientific), and there are plastic models to display the components of automotive engines. again found in most good science stores). Hope this helps. Frederick J. Carranti, P.E.
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