It is impossible for a self-acting machine, unaided by any external agency, to convey heat from one body to another at a higher temperature.


'On the Dynamical Theory of Heat, with Numerical Results Deduced from Mr Joule's Equivalent of a Thermal Unit, and M. Regnault's Observations on Steam' (1851)

William Thomson Quotes

It is impossible for a self-acting machine, unaided by any external agency, to convey heat from one body to another at a higher temperature.

It is impossible for a self-acting machine, unaided by any external agency, to convey heat from one body to another at a higher temperature.

It is impossible for a self-acting machine, unaided by any external agency, to convey heat from one body to another at a higher temperature.

It is impossible for a self-acting machine, unaided by any external agency, to convey heat from one body to another at a higher temperature.