Carnot's theorem or Carnot's principle may refer to:
In geometry:
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Carnot's theorem (inradius, circumradius)
In Euclidean geometry, Carnot's theorem states that the sum of the signed distances from the circumcenter ''D'' to the sides of an arbitrary triangle ''ABC'' is
:DF + DG + DH = R + r,\
where ''r'' is the inradius and ''R'' is the circumradiu ...
, describing a property of the incircle and the circumcircle of a triangle
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Carnot's theorem (conics), describing a relation between triangles and conic sections
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Carnot's theorem (perpendiculars), describing a property of certain perpendiculars on triangle sides
In physics:
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Carnot's theorem (thermodynamics)
Carnot's theorem, also called Carnot's rule or Carnot's law, is a principle of thermodynamics developed by Nicolas Léonard Sadi Carnot in 1824 that specifies limits on the maximum efficiency that any heat engine can obtain.
Carnot's theorem sta ...
, setting a maximum efficiency obtainable from a heat engine
See also
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Carnot cycle
A Carnot cycle is an ideal thermodynamic cycle proposed by French physicist Nicolas Léonard Sadi Carnot, Sadi Carnot in 1824 and expanded upon by others in the 1830s and 1840s. By Carnot's theorem (thermodynamics), Carnot's theorem, it provides ...
, in thermodynamics
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