Hugh Longbourne Callendar

Hugh Longbourne Callendar ( born April 18, 1863 in Hatherop, Cotswolds, † January 21, 1930 ) was a British physicist.

Life and work

1893 was Hugh Callendar professor at McGill University in Montreal, in 1898 returned to England at the Royal College of Science in South Kensington, and in 1907 at Imperial College London.

He has made significant contributions to thermometry, calorimetry and the thermodynamic properties of steam. In 1886, he described a precision thermometer on the basis of the electric resistivity of platinum. Later, he developed an electrical flow calorimeter.

His son, Guy Stewart Callendar was an engineer and inventor. After his father's death, he tried to continue his work and did research to the enthalpy of steam. In 1938 Guy Stewart Callendar published, based on the work of Svante Arrhenius and Nils Gustaf Ekholm, some papers on global warming.

Callendar was since June 7, 1894 Fellow of the Royal Society, which honored him in 1906 with the Rumford Medal. In 1912 he held the Bakerian Lecture.

Writings (selection )

• A manual of cursive shorthand. , 1889.
• Properties of steam and thermodynamic theory of turbines. , 1920.
• Abridged Callendar Steam Tables, centigrade units. to 1928.