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Banesh Hoffmann (6 September 1906 – 5 August 1986) was a British
mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...
and
physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate ca ...
known for his association with
Albert Einstein Albert Einstein ( ; ; 14 March 1879 – 18 April 1955) was a German-born theoretical physicist, widely acknowledged to be one of the greatest and most influential physicists of all time. Einstein is best known for developing the theor ...
.


Life

Banesh Hoffmann was born in Richmond, Surrey, on 6 September 1906. He studied mathematics and
theoretical physics Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain and predict natural phenomena. This is in contrast to experimental physics, which uses experi ...
at the
University of Oxford The University of Oxford is a collegiate research university in Oxford, England. There is evidence of teaching as early as 1096, making it the oldest university in the English-speaking world and the world's second-oldest university in contin ...
, where he earned a
Bachelor of Arts Bachelor of arts (BA or AB; from the Latin ', ', or ') is a bachelor's degree awarded for an undergraduate program in the arts, or, in some cases, other disciplines. A Bachelor of Arts degree course is generally completed in three or four yea ...
degree and went on to earn his doctorate at
Princeton University Princeton University is a private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the United States and one of the n ...
. While at the
Institute for Advanced Study The Institute for Advanced Study (IAS), located in Princeton, New Jersey, in the United States, is an independent center for theoretical research and intellectual inquiry. It has served as the academic home of internationally preeminent scholar ...
in Princeton, Hoffmann collaborated with Einstein and Leopold Infeld on the classic paper ''Gravitational Equations and the Problem of Motion.'' Einstein's original work on
general relativity General relativity, also known as the general theory of relativity and Einstein's theory of gravity, is the geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of gravitation in modern physics. ...
was based on two ideas. The first was the equation of motion: that a particle would follow the shortest path in four-dimensions space-time. The second was how matter affects the geometry of space-time. What Einstein, Infeld, and Hoffmann showed was that the equation of motion followed directly from the field equation that defined the geometry (see main article). In 1937, Hoffmann joined the mathematics department of Queens College, part of the
City University of New York The City University of New York ( CUNY; , ) is the public university system of New York City. It is the largest urban university system in the United States, comprising 25 campuses: eleven senior colleges, seven community colleges and seven pr ...
, where he remained until the late 1970s. He retired in the 1960s but continued to teach – in the fall a course on classical and quantum mechanics and an advanced math course for students who had taken pre-calculus, solid geometry and advanced algebra before entering college. This course was one semester and was called Math 3: the fusion of the year-long Math 1 and Math 2 courses required by Queens College but offered in a pressurized one-semester course. In the spring he taught the special and general theories of relativity. In July 1938 in New York City he married Doris Marjorie Goodday. They had a son and a daughter. Hoffmann died on 5 August 1986. One of the Queens College mathematics department's awards for graduating seniors is named in his honor.


Works

Hoffmann became Einstein's biographer in 1972 when he co-authored '' Albert Einstein: Creator and Rebel'' with Einstein's secretary, Helen Dukas. The pair collaborated again in compiling ''Albert Einstein: The Human Side'', a collection of quotations from Einstein's letters and other personal papers. Hoffmann was also the author of ''The Strange Story of the Quantum'', ''About Vectors'', ''Relativity and Its Roots'', and ''The Tyranny of Testing''. He was a member of The Baker Street Irregulars and wrote the short story "Sherlock, Shakespeare, and the Bomb," published in ''Ellery Queen Mystery Magazine'' in February 1966.List of ''Ellery Queen Mystery Magazine''


See also

*'' Complaints of a Dutiful Daughter'', a film by his daughter Deborah about the Alzheimer's disease of his widow Doris *
Basic concepts of quantum mechanics Quantum mechanics is the study of matter and its interactions with energy on the scale of atomic and subatomic particles. By contrast, classical physics explains matter and energy only on a scale familiar to human experience, including the be ...
* Einstein–Infeld–Hoffmann equations


References


External links


An interview with Hoffmann about his experience at Princeton
{{DEFAULTSORT:Hoffmann, Banesh 1906 births 1986 deaths American physicists British relativity theorists 20th-century American mathematicians 20th-century British mathematicians Alumni of the University of Oxford Princeton University faculty Alumni of Merton College, Oxford British emigrants to the United States