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Gibbs, Josiah Willard, 1839-1903, American mathematical physicist, b. New Haven, Conn., grad. Yale, 1858. He studied abroad and was professor of mathematical physics at Yale from 1871. His great contributions to physical chemistry and thermodynamics have had a profound effect on industry, notably in the production of ammonia. He formulated the concept of chemical potential. In mathematics he wrote on quaternions and was influential in developing vector analysis. His work in statistical mechanics was especially important. Gibbs also contributed to crystallography, the determination of planetary and comet orbits, and electromagnetic theory. James Clerk Maxwell was one of the first European scientists to recognize Gibbs as a theoretical physicist of international stature. Gibbs was also interested in the practical side of science; his doctorate was the first granted by Yale for an engineering thesis, and he received a patent (1866) for an improved type of railroad brake. His *Scientific Papers* appeared in 1906 (repr. 1961) and his *Collected Works* in 1928.

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Licensed from Columbia University Press

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(born , Feb. 11, 1839, New Haven, Conn., U.S.—died April 28, 1903, New Haven) U.S. theoretical physicist and chemist. He became the first person to earn an engineering doctorate from Yale University, where he taught from 1871 until his death. He began his career in engineering but turned to theory, analyzing the equilibrium of James Watt's steam-engine governor. His major works were on fluid thermodynamics and the equilibrium of heterogeneous substances, and he developed statistical mechanics. Gibbs was the first to expound with mathematical rigour the “relation between chemical, electrical, and thermal energy and capacity for work.” Though little of his work was appreciated during his lifetime, his application of thermodynamic theory to chemical reactions converted much of physical chemistry from an empirical to a deductive science, and he is regarded as one of the greatest U.S. scientists of the 19th century.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.

Josiah Willard Gibbs, Sr. (30 April 1790-24 March 1861) was a professor of theology and sacred literature at Yale University.

He was born in Salem, Massachusetts and graduated from Yale in 1809. He was a tutor at the college from 1811 to 1815, when he removed to Andover, studying Hebrew and biblical literature. He returned to New Haven in 1824 as professor of theology and sacred literature, a post he retained until his death.

Gibbs was one of the key witnesses in the Amistad trial in 1839-1840. He had been able to locate a translator for the defendants' Mende language by learning to count to ten in that language, and then counting out loud in the harbor of New York City.

He was the father of physical chemist, engineer, and mathematician Josiah Willard Gibbs. Both are buried in New Haven's Grove Street Cemetery.

He was portrayed by Austin Pendleton in the 1997 film Amistad.

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Last updated on Friday September 19, 2008 at 14:45:16 PDT (GMT -0700)

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This article is licensed under the GNU Free Documentation License.

Last updated on Friday September 19, 2008 at 14:45:16 PDT (GMT -0700)

View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation

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