+A **Heat Engine** is a device that converts [thermal energy](/wiki/thermal_energy) into [mechanical work](/wiki/mechanical_work). It operates by exploiting temperature differences, allowing heat to flow from a hot reservoir to a cold one, performing useful work in the process.
+## See also
+- [Engine](/wiki/engine)
+- [Thermodynamics](/wiki/thermodynamics)
+- [Carnot Cycle](/wiki/carnot_cycle)
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