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Georg Joos ( 25.05. 1894 - 20.05.1959); full professor for experimental physics at Technical University of Munich. Georg Jakob Christof Joos (25 May 1894 in Bad Urach, German Empire – 20 May 1959 in Munich, West Germany) was a German experimental physicist.
By producing high-resolution diffraction gratings in a basement room at Zeiss, Franz Meyer came into contact with Georg Joos, who had been a professor of theoretical physics at the University of Jena since 1924. Joos wanted to experimentally prove that Einstein's theory of relativity was exactly valid despite apparently contradictory results.
He had his early education in P. S. High School, Madras. He graduated from Presidency College, Madras, with B.Sc. (Hons) degree in physics. As a student of the college he had wanted to work under Sir C. V. Raman. When his father consulted Raman, Raman suggested reading Lehrbuch der theoretischen Physik [1] by Georg Joos.
At Jena, Georg Joos was professor of theoretical physics, but in 1935, he made a compulsory transfer to head the Second Physical Institute at Göttingen to replace James Franck, who had resigned as a result of the Law for the Restoration of the Professional Civil Service in 1933. [8]
Lectures on Theoretical Physics is a six-volume series of physics textbooks translated from Arnold Sommerfeld's classic German texts Vorlesungen über Theoretische Physik. The series includes the volumes Mechanics , Mechanics of Deformable Bodies , Electrodynamics , Optics , Thermodynamics and Statistical Mechanics , and Partial Differential ...
In 1930, Georg Joos conducted an experiment using an automated interferometer with 21-meter-long (69 ft) arms forged from pressed quartz having a very low coefficient of thermal expansion, that took continuous photographic strip recordings of the fringes through dozens of revolutions of the apparatus. Displacements of 1/1000 of a fringe could ...
For example, Georg Joos reprised Miller's experiment using a very similar setup (the arms of his interferometer were 21 m vs. the 32 m in the Miller experiment) and obtained results that were 1/50 the magnitude of those from Miller's (see Michelson–Morley experiment#Subsequent experiments).
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 experimental tools to probe these phenomena.