Pierre-Simon Girard

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Pierre-Simon Girard
Pierre-Simon Girard.jpg
Pierre-Simon Girard, after a portrait by Julien-Léopold Boilly
Born (1765-11-04)4 November 1765
Caen, France
Died 30 November 1836(1836-11-30) (aged 71)
Paris, France
Residence France
Fields Mathematics

Pierre-Simon Girard (4 November 1765 – 30 November 1836) was a French mathematician and engineer, who worked on fluid mechanics.

Girard was born in Caen. A prodigy who invented a water turbine at the age of ten, he worked as an engineer at the École Nationale des Ponts et Chaussées. He was in charge of planning and construction of the Amiens canal and the Ourcq canal. He collaborated with Gaspard de Prony on the Dictionnaire des Ponts et Chaussées (Dictionary of Bridges and Highways). He wrote works on fluids and on the strength of materials. In 1799 he led a cultural and scientific expedition to Upper Egypt. He died in Paris, aged 71.


  • Antoine Picon: L'invention de l'ingenieur moderne. (1992), Presses des Ponts & Chaussées. ISBN 2-85978-178-1
  • André Guillerme: Bâtir la ville – révolutions industrielles dans les matériaux de construction. (1995), éd. Champ Vallon. ISBN 2-87673-203-3
  • Stephen Timoshenko: History of strength of materials. 1953, Nachdruck. 1983. ISBN 0-486-61187-6