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Honours

Joule died at home in Sale and is buried in Brooklands cemetery there. His gravestone is inscribed with the number "772.55", his climacteric 1878 measurement of the mechanical equivalent of heat, in which he found that this amount of foot-pounds of work must be expended at sea level to raise the temperature of one pound of water from 60 °F to 61 °F. There is also a quotation from the Gospel of John: "I must work the work of him that sent me, while it is day: the night cometh, when no man can work". The Wetherspoon's pub in Sale, the town of his death, is named "The J. P. Joule" after him.

Joule's many honours and commendations include:

There is a memorial to Joule in the north choir aisle of Westminster Abbey, though he is not buried there, contrary to what some biographies state. A statue of Joule by Alfred Gilbert stands in Manchester Town Hall, opposite that of Dalton.