A system undergoing a Carnot cycle is called a Carnot heat engine, although such a "perfect" engine is only a theoretical limit and cannot be built in practice.
Fenian Cycle | Sadi Carnot | National Cycle Network | Nicolas Léonard Sadi Carnot | Lazare Carnot | Cardiac cycle | 24-hour news cycle | The Kentucky Cycle | The Baroque Cycle | Marie François Sadi Carnot | Dream Cycle | Cycle World | Ulster Cycle | Stirling cycle | Segregated cycle facilities | Post-Vulgate Cycle | Biological life cycle | Tillerman Cycle | The Riftwar Cycle | The Prayer Cycle | solar cycle | Reynolds Cycle Technology | Otto cycle | National Cycle Route 73 | National Cycle Route 1 | Motor Cycle News | Inheritance Cycle | Giovanni Baleison, ''Cycle on the life of Saint Sebastian'', fresco, detail of main altar, St. Sebastian Church, Saint-Étienne-de-Tinée | Combined cycle | Classic cycle races |
The Reflections contain a number of principles such as the Carnot cycle, the Carnot heat engine, Carnot's theorem, thermodynamic efficiency.