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Darcy, Henry Philibert Gaspard

Darcy, Henry Philibert Gaspard

Published: August 31, 2006, 3:13 pm
Updated: August 31, 2006, 3:13 pm
Lead Author: Cutler Cleveland
Topics: People Energy People Environmental Engineering Water
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This article has been reviewed by the following Topic Editor: Tom Lawrence

Henry Philibert Gaspard Darcy (1803-1858), a French scientist who made many important contributions to hydraulics. Darcy invented the modern style Pitot tube, a device for measuring the velocity of water. He stated Darcy’s Law (1856), a mathematical relationship that governs the flow of groundwater through granular media or the flow of other fluids through permeable material, such as petroleum through sandstone or limestone. As a leader of the Corps of Bridges and Roads in France, he built an impressive pressurized water distribution system in Dijon, France that carried fresh water from Rosoir Spring, 12.7 km away, through a covered aqueduct to reservoirs near the city, which then fed into a network of 28,000 meters of pressurized pipes delivering water to much of the city. The system was fully closed and pressurized by gravity, and thus required no filters or pumps.

Further Reading
Henry Darcy and His Law (Oklahoma State University, Department of Biosystems Engineering)
Lecture: Darcy's Law (The Earth Institute at Columbia University)

Citation

Cutler Cleveland (Lead Author);Tom Lawrence (Topic Editor) "Darcy, Henry Philibert Gaspard". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth August 31, 2006; Last revised Date August 31, 2006; Retrieved February 9, 2012 <http://www.eoearth.org/article/Darcy,_Henry_Philibert_Gaspard>

The Author

Cutler Cleveland Editor-in-Chief The Encyclopedia of Earth Cutler J. Cleveland is the founding Editor-in-Chief of the Encyclopedia of Earth. Dr. Cleveland is currently a Professor in the Department of Geography and Environment at Boston University, with joint appointments in the Center for Energy and Environmental Studies and the Pardee Center for the Study of the Longer Range Future. He also is a Senior Fellow at the National Council for Science and the Environment in Washington D.C. Dr. Cleveland is als ... (Full Bio)

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