Colladon, Jean Daniel (1802–1893)

Swiss engineer. He invented a dynamometer (instrument for measuring power) which was adopted by the British Admiralty, and developed the use of the energy stored in compressed air in tunnelling operations in 1852. He published Mémoires des savants étrangers (1838).

Colladon won the Grand Prix at the Academy of Science in Paris in 1827 with Mémoire sur la compression des liquides et la vitesse du son dans l'eau. Two years later he received the professorship of mechanics at the Paris School of Arts and Manufactures.