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Pierre-Simon Girard was born #onthisday 4th November 1765 A.D. and died 30th November. He was an important French Mathematician and engineer who worked on fluid mechanics.

Girard was born in the Caen. He was a prodigy who invented a water turbine at the age of ten, he also worked as an engineer at the Ecole Nationale de Ponts et Chausses.

Girard also, was in charge of planning and the construction of the Amiens Canal and the Ourcq Canal.

He worked on a project with Gaspard de Prony on “Dictionnaire des Ponts et Chaussées (Dictionary of Bridges and Highways)”. Other works he worked on the fluids and strength of materials. In 1799 he led a cultural and scientific expedition to upper Egypt.

 

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