Josiah Willard Gibbs

For Josiah Willard Gibbs, Sr., see Josiah Willard Gibbs, Sr.. For the United States Navy ship, see USNS Josiah Willard Gibbs (T-AGOR-1).

J. Willard Gibbs
Josiah Willard Gibbs
Born	February 11, 1839(1839-02-11) New Haven, Connecticut
Died	April 28, 1903(1903-04-28) (aged 64) New Haven, Connecticut
Residence	United States
Nationality	United States
Fields	Physics, chemistry, mathematics
Institutions	Yale University
Alma mater	Yale University
Doctoral advisor	Hubert Anson Newton
Doctoral students	Edwin Bidwell Wilson, Irving Fisher, Henry Andrews Bumstead
Known for	Statistical mechanics Statistical ensemble Gibbs entropy Ergodic hypothesis Enthalpy Gibbs free energy Vector calculus Gibbs-Helmholtz equation Gibbs-Duhem equation Gibbs algorithm Gibbs distribution Gibbs state Gibbs phenomenon Gibbs paradox Gibbs' phase rule Gibbs-Thomson effect Gibbs isotherm Gibbs-Donnan effect Gibbs lemma
Influences	Rudolf Clausius, Gustav Kirchhoff, Hermann von Helmholtz, James Clerk Maxwell, Ludwig Boltzmann
Notable awards	Rumford Prize (1880), Copley Medal (1901)
Signature

Josiah Willard Gibbs (February 11, 1839 – April 28, 1903) was an American scientist who made seminal theoretical contributions to physics, chemistry, and mathematics. His work on the applications of thermodynamics was instrumental in transforming physical chemistry into a rigorous deductive science. Together with James Clerk Maxwell and Ludwig Boltzmann, he created statistical mechanics (a term which he coined), explaining the laws of thermodynamics in terms of the statistical properties of large ensembles of particles. As a mathematician, he invented modern vector calculus (independently of Oliver Heaviside).

Gibbs received the first American doctorate in engineering from Yale University in 1863 and, after a three-year sojourn in Europe, spent the rest of his career at Yale, where he was professor of mathematical physics. Working in relative isolation, he became the first theoretical scientist in the United States to earn an international reputation and was praised by Albert Einstein as "the greatest mind in American history." In 1901 Gibbs received what was then considered the highest honor awarded by the international scientific community, the Copley Medal of the Royal Society of London, "for his contributions to mathematical physics."

Biography

Family background

Gibbs was the fourth child and only son of Josiah Willard Gibbs, a linguist and theologian who was professor of sacred literature at Yale Divinity School from 1824 to 1861, and his wife Mary Anna, née Van Cleve. The father is now chiefly remembered for his role in finding an interpreter for the African passengers of the ship Amistad, which allowed them to testify during the trial that followed their rebellion against being sold as slaves.

Gibbs belonged to a long line of American academics that stretched back to the 17th century. On his father's side, he descended from Samuel Willard, who served as President of Harvard University from 1701 to 1707. On his mother's side, one of his ancestors was the Rev. Jonathan Dickinson, who was the first president of the College of New Jersey (later Princeton University). His given name, which he shared with his father and several other members of his extended family, derived from his ancestor Josiah Willard, who had been Secretary of the Province of Massachusetts Bay in the 18th century.

Early years

Gibbs in his youth.

Gibbs was educated at the Hopkins School and entered Yale College in 1854, at the age of 15. He graduated in 1858 near the top of his class, and was awarded prizes for excellence in mathematics and Latin. He remained at Yale as a graduate student at the Sheffield Scientific School and in 1863 received the first Ph.D. degree in engineering in the USA, for a thesis entitled "On the Form of the Teeth of Wheels in Spur Gearing," in which he used geometrical techniques to investigate the optimum design for gear teeth. He was then appointed as tutor at the College for a term of three years. During the first two years he taught Latin and during the third Natural Philosophy.

After the death of his father in 1861, Gibbs received an inheritance that gave him financial independence. After his term as tutor ended, Gibbs travelled to Europe with his sisters, spending the winter of 1866-67 in Paris, where he attended lectures at the Sorbonne and the Collège de France. From there he went to Berlin, where he attended the lectures of Magnus, and to Heidelberg, where he was exposed to the scientific work of Kirchhoff and Helmholtz. At the time, German academics were the leading authorities in chemistry, thermodynamics, and natural science in general. Gibbs returned to Yale in June of 1869. Except for his customary summer vacations in the Adirondack Mountains, those three years were the only time that Gibbs ever spent outside New Haven.

Upon his return from Europe, Gibbs at first conducted research in mechanical engineering, working on designs for a railway brake (which he patented) and a steam-engine governor. In 1871 he was appointed Professor of Mathematical Physics at Yale, the first such professorship in the United States. His position was initially unpaid, a situation common in Germany and otherwise not unusual at the time, as Gibbs had yet to publish anything.

Middle years

Prof. Gibbs in middle age

Gibbs's first published work, which appeared in 1873 when he was already 34 years old, was on the geometric representation of thermodynamic quantities. That work appeared in the Transactions of the Connecticut Academy, which had few readers capable of understanding Gibbs's work, but he shared reprints with his correspondents in Europe and received a particularly favorable response from Maxwell, who made three plaster casts illustrating Gibbs's construct with his own hands and mailed one to Gibbs. That model is still on display at the Yale physics department.

Between 1876 and 1878 Gibbs wrote a series of papers applying his graphical techniques of thermodynamic analysis to multi-phase chemical systems. These were eventually collected as a long monograph titled "On the Equilibrium of Heterogeneous Substances," which became his most renowned work. It is now deemed to be one of the greatest scientific achievements of the 19th century and one of the foundations of both physical chemistry and statistical mechanics. In that work Gibbs rigorously and ingeniously applied the concepts of thermodynamics to the interpretation of physico-chemical phenomena, successfully explaining and interrelating what had previously been a mass of isolated facts.

Willard Gibbs’ 1873 available energy (free energy) graph, which shows a plane perpendicular to the axis of v (volume) and passing through point A, which represents the initial state of the body. MN is the section of the surface of dissipated energy. Qε and Qη are sections of the planes η = 0 and ε = 0, and therefore parallel to the axes of ε (internal energy) and η (entropy) respectively. AD and AE are the energy and entropy of the body in its initial state, AB and AC its available energy (Gibbs free energy) and its capacity for entropy (the amount by which the entropy of the body can be increased without changing the energy of the body or increasing its volume) respectively.

It is universally recognised that its publication was an event of the first importance in the history of chemistry. ... Nevertheless it was a number of years before its value was generally known, this delay was due largely to the fact that its mathematical form and rigorous deductive processes make it difficult reading for anyone, and especially so for students of experimental chemistry whom it most concerns...

— J J O'Connor and E F Robertson

Gibbs's early papers introduced the concept of the "free energy" (now universally known as the "Gibbs free energy"), a thermodynamic potential which is especially useful to chemists since it determines whether a reaction will proceed spontaneously at a fixed temperature and pressure. Other important topics covered in his papers on heterogeneous equilibria include the Gibbs phase rule, as well the concepts of chemical potential and of statistical ensemble.

Later years

Gibbs continued to work without pay until 1880, when the new Johns Hopkins University in Baltimore, Maryland offered him a position paying $3,000 per year. In response, Yale gave him a salary of $2,000, which he was content to accept. From 1880 to 1884, Gibbs combined the quaternions of William Rowan Hamilton and the exterior algebra of Hermann Grassmann to develop vector calculus (independently formulated by the British mathematical physicist and engineer Oliver Heaviside). His lecture notes on the subject were privately printed in 1881 and 1884 for the use of his students, and were later adapted by Edwin Bidwell Wilson into a textbook, Vector Analysis, published in 1901. That book helped to popularize the vector calculus notation still used today in electrodynamics (see del operator).

From 1882 to 1889, Gibbs wrote five papers on physical optics and the electromagnetic theory of light. He deliberately avoided speculation about the microscopic structure of matter, a wise decision in view of the revolutionary developments in subatomic particles and quantum mechanics that began around the time of his death. His chemical thermodynamics was a theory of greater generality than any other theory of matter extant in his day. His resolution of the so-called "Gibbs paradox" about the entropy of the mixing of gases is now often cited as a prefiguration of the indistinguishability of particles required by quantum mechanics.

Gibbs created both the term "statistical mechanics" and many of the key concepts of the corresponding description of physical systems, thus "providing a mathematical framework for quantum theory and for Maxwell's theories." Together with Maxwell and Ludwig Boltzmann, he is considered to have been one of the founders of that discipline. He also wrote a classic textbook on the subject, Elementary Principles in Statistical Mechanics, published in 1902.

Gibbs also applied his vector methods to the determination of planetary and comet orbits. He also re-discovered the Gibbs phenomenon in the theory of Fourier series (which, unbeknownst to him and to later scholars, had been found three decades before by an obscure English mathematician, Henry Wilbraham). His later work on statistical mechanics includes a contribution to crystallography.

Gibbs had few students and his retiring personality and intense focus on his scientific work were such that he was generally unavailable personally. He did supervise the doctoral thesis on mathematical economics written by Irving Fisher in 1891 (Fisher later financed the publication of Gibbs's Collected Works). Gibbs's principal protégé was E. B. Wilson, who nonetheless explained that "except in the classroom I saw very little of Gibbs. He had a way, toward the end of the afternoon, of taking a stroll about the streets between his study in the old Sloane Laboratory and his home —a little exercise between work and dinner— and one might occasionally come across him at that time."

Gibbs never married, living all his life in his childhood home with a sister and his brother-in-law, who was the Yale librarian. Gibbs died in New Haven and is buried in Grove Street Cemetery.

Scientific recognition

Gibbs worked at a time when there was little tradition of rigorous theoretical science in the United States. His work was not easily understandable to his students or his colleagues and he made no effort to popularize his ideas or to simplify their exposition to make them more accessible. His seminal work on thermodynamics and statistical mechanics was mostly published in the Transactions of the Connecticut Academy, a journal edited by his librarian brother-in-law, which was little read in the USA and even less so in Europe. Gibbs did eventually succeed in interesting his European correspondents on that work, which was translated into German (then the leading language for chemistry) by Wilhelm Ostwald in 1892 and into French by Henri Louis le Chatelier in 1899. His phase rule was experimentally validated by the works of H. W. Bakhuis Roozeboom, who showed how to apply it in a variety of situations, thereby assuring it of widespread use.

Gibbs did receive some significant recognition in the United States, including the 1880 Rumford Prize from the American Academy of Arts and Sciences for his work on chemical thermodynamics. Mathematician Gian-Carlo Rota, while casually browsing the mathematical stacks of Sterling Library, stumbled on a handwritten mailing list attached to some of Gibbs's course notes. It listed over two hundred notable scientists of his day, including Poincaré, Hilbert, Boltzmann, and Mach. One may conclude that Gibbs's work was better known among the scientific elite of his day than the published material suggests.

In his later years he was a tall, dignified gentleman, with a healthy stride and ruddy complexion, performing his share of household chores, approachable and kind (if unintelligible) to students. Gibbs was highly esteemed by his friends, but American science was too preoccupied with practical questions to make much use of his profound theoretical work during his lifetime. He lived out his quiet life at Yale, deeply admired by a few able students but making no immediate impress on American science commensurate with his genius.

— J. G. Crowther, 1937

Gibbs was inducted as a foreign member of the Royal Society of London in 1897 and received the Society's Copley Medal in 1901. At the time, that was considered the highest international honor in the natural sciences.

Influence

Gibbs's impact on modern science is obvious in physical chemistry and statistical mechanics, both of which he greatly helped to found. When Dutch physicist J. D. van der Waals received the 1910 Nobel Prize "for his work on the equation of state for gases and liquids" he acknowledged the great influence of Gibbs's work on that subject. Max Planck received the 1918 Nobel Prize for his work on quantum mechanics, particularly his 1900 paper on the quantization of black-body radiation (see Planck's law). That work was largely based on the thermodynamics of Kirchhoff, Boltzmann, and Gibbs. Planck said Gibbs's name "not only in America but in the whole world will ever be reckoned among the most renowned theoretical physicists of all times."

At the beginning of the 20th century, Gilbert N. Lewis and Merle Randall used and extended Gibbs's work on chemical thermodynamics and presented their results in the 1923 textbook Thermodynamics and the Free Energy of Chemical Substances, one of the two founding books in chemical thermodynamics. William Giauque received a bachelor of science degree in chemistry from Berkeley in 1920. At first he wanted to become a chemical engineer, but soon developed an interest in fundamental chemical research under Lewis's influence. In 1934, Giauque became a full Professor of Chemistry at Berkeley. In 1949, he won the Nobel Prize in Chemistry for his studies in the properties of matter at temperatures close to absolute zero, studies guided by the third law of thermodynamics.

Gibbs's work on the ergodic hypothesis, as presented in his 1902 textbook on statistical mechanics, had a considerable and long-lasting influence in both theoretical physics and in pure mathematics. According to mathematical physicist Arthur Wightman

It is one of the striking features of the work of Gibbs, noticed by every student of thermodynamics and statistical mechanics, that his formulations of physical concepts were so felicitiously chosen that they have survived 100 years of turbulent development in theoretical physics and mathematics.

— A. S. Wightman, 1990

Gibbs also had a significant though indirect influence in mathematical economics and on general equilibrium theory. He supervised the thesis of Irving Fisher, who received the first Ph.D. in economics from Yale in 1891. One of Gibbs's protegés was Edwin Bidwell Wilson, who in turn was a mentor to leading American economist and Nobel Laureate Paul Samuelson. In 1947, Samuelson published Foundations of Economic Analysis, based on his Harvard University doctoral dissertation. Samuelson explicitly acknowledged the influence of the classical thermodynamic methods of Gibbs. In 2003, Samuelson described Gibbs as "Yale's great physicist."

Mathematician Norbert Wiener cited Gibbs as a major influence on his conception of cybernetics and explained in his book The Human Use of Human Beings that it was "devoted to the impact of the Gibbsian point of view on modern life, both through the substantive changes it has made to working science, and through the changes it has made indirectly in our attitude to life in general."

In literature

Feminist poet Muriel Rukeyser became fascinated by Willard Gibbs and wrote a long poem about his life and work ("Gibbs," included in collection A Turning Wind, published in 1939), as well as a book-length biography (Willard Gibbs, 1942). According to Rukeyser

Willard Gibbs is the type of the imagination at work in the world. His story is that of an opening up which has had its effect on our lives and our thinking; and, it seems to me, it is the emblem of the naked imagination —which is called abstract and impractical, but whose discoveries can be used by anyone who is interested, in whatever "field"— an imagination which for me, more than that of any other figure in American thought, any poet, or political, or religious figure, stands for imagination at its essential points.

— Muriel Rukeyser, 1949

Both Gibbs and Rukeyser's biography of him figure prominently in the poetry collection True North (1997) by Stephanie Strickland.

Commemoration

In 1910, the American Chemical Society posthumously established the Willard Gibbs Medal, through the initiative of William A. Converse, a former chairman of the Chicago Section. The American Mathematical Society established the Josiah Willard Gibbs Lectureship in 1923 to increase public awareness of mathematics and its applications.

In 1945, Yale University created the J. Willard Gibbs Professorship in Theoretical Chemistry, held until 1973 by Lars Onsager, who won the 1968 Nobel Prize in chemistry. This appointment was a very fitting one, as Onsager, like Gibbs, was primarily involved in the application of new mathematical ideas to problems in physical chemistry, especially statistical mechanics. Yale's J. W. Gibbs Laboratory and J. Willard Gibbs Assistant Professorship in Mathematics are also named in his honor. On February 28, 2003, Yale held a symposium on the centennial of his death. Rutgers University has a J. Willard Gibbs Professorship of Thermomechanics presently held by Bernard D. Coleman.

In 1950, Gibbs was elected to the Hall of Fame for Great Americans. The United States Navy oceanographic research ship USNS Josiah Willard Gibbs (T-AGOR-1), in service from 1958 to 1971, was named for Gibbs. On May 4, 2005, the United States Postal Service issued the American Scientists commemorative postage stamp series designed by artist Victor Stabin, depicting Gibbs, John von Neumann, Barbara McClintock, and Richard Feynman.

See also

• Science: Information theory, Information entropy
• Electricity: Maxwell's equations
• Mathematics: Gibbs phenomenon, Vector Analysis (Gibbs/Wilson), cross product
• Physical chemistry: Matter phase, Gibbs phase rule, Statistical mechanics, Free energy
• Named for Gibbs: Gibbs free energy, Gibbs entropy, Gibbs inequality, Gibbs paradox, Gibbs-Helmholtz equation, Gibbs algorithm, Gibbs distribution, Gibbs state, Gibbs sampling, Gibbs-Marangoni effect, Gibbs-Duhem relation, Gibbs phenomenon, Gibbs-Donnan effect
• People: Gilbert N. Lewis, William Rowan Hamilton, Lars Onsager, Ludwig Boltzmann, William Stanley, Oliver Heaviside
• Lists: List of physicists, Timeline of thermodynamics, List of physics topics, List of notable textbooks in statistical mechanics

References

Primary:

• The Early Work of Willard Gibbs in Applied Mechanics, (New York: Henry Schuman, 1947). ISBN 1881987175
• J. W. Gibbs, "On the Equilibrium of Heterogeneous Substances," Transactions of the Connecticut Academy of Arts and Sciences, 3, 108-248, 343-524, (1875-1878). Reproduced in both The Collected Papers (1906) and The Collected Works of J. Willard Gibbs (1928).
• J. W. Gibbs, Elementary Principles in Statistical Mechanics, developed with especial reference to the rational foundation of thermodynamics, (New York: Dover Publications, 1960 [1902]).
• E. B. Wilson, Vector Analysis, a text-book for the use of students of Mathematics and Physics, founded upon the Lectures of J. Willard Gibbs, (New Haven: Yale University Press, 1929 [1901]).
• The Scientific Papers of J. Willard Gibbs, in two volumes, eds. H. A. Bumstead and R. G. Van Name, (Woodbridge, CT: Ox Bow Press, 1993 [1906]). ISBN 0918024773, ISBN 188198706X
• The Collected Works of J. Willard Gibbs, in two volumes, eds. W. R. Longley and R. G. Van Name, (New Haven: Yale University Press, 1957 [1928]).

Secondary :

• Bibliography on J. W. Gibbs, The MacTutor History of Mathematics archive
• "Josiah Willard Gibbs", American Institute of Physics (2003 [1976]).
• H. A. Bumstead, "Josiah Willard Gibbs," American Journal of Science, 16, 187-202 (1903), reprinted with some additions in both The Collected Papers (1906) and The Collected Works of J. Willard Gibbs (1928).
• J. G. Crowther, Famous American Men of Science, (Freeport, NY: Books for Libraries Press, 1969 [1937]). ISBN 0836900405
• F. G. Donnan, A. E. Hass and P. M. M. Duhem, A Commentary on the Scientific Writings of J Willard Gibbs, (New York: Arno, 1980 [1936]). ISBN 0405125445
• C. S. Hastings, "Josiah Willard Gibbs," Biographical Memoirs of the National Academy of Sciences, 6, 372-393 (1909).
• K. Meinke and J. V. Tucker, "Universal Algebra," in Handbook of Logic in Computer Science, vol. I, eds. S. Abramsky, D. Gabbay and T. S. E. Maibaum, (Oxford: Oxford University Press), pp. 189-411. ISBN 0198537611
• M. Rukeyser, Willard Gibbs: American Genius, (Woodbridge, CT: Ox Bow Press, 1942). ISBN 0918024579
• R. J. Seeger, J. Willard Gibbs, American mathematical physicist par excellence, (Oxford and New York: Pergamon Press, 1974). ISBN 0080180132
• L. P. Wheeler, Josiah Willard Gibbs, The History of a Great Mind, (Woodbridge, CT: Ox Bow Press, 1998 [1952]). ISBN 1881987116
• E. B. Wilson, "Reminiscences of Gibbs by a student and colleague", Bulletin of the American Mathematical Society, 37, 401-416 (1931).
• Dictionary of American Naval Fighting Ships: San Carlos

External links

• O'Connor, John J.; Robertson, Edmund F., "Josiah Willard Gibbs", MacTutor History of Mathematics archive, University of St Andrews, http://www-history.mcs.st-andrews.ac.uk/Biographies/Gibbs.html .
• Jolls, Kenneth R., and Daniel C. Coy, "Gibbs models". Iowa State University.