‎Sonneville (Madeleine), Fauque (Danielle)‎
‎La Gravitation. ‎

‎Einheitliche Feldtheorie von Gravitation und Elektrizität (+) Neue Möglichkeit für eine einheitliche Feldtheorie von Gravitation und Elektrizität (+) Zur einheitlichen Feldtheorie (+) Einheitliche Feldtheorie und Hamiltonsches Prinzip (+) Über den ge... - [PMM 416 - A NEW THEORY OF GRAVITATION]‎

‎Berlin, Königlich Akademie der Wissenschaften, 1925-1929. 1. Einheitliche Feldtheorie von Gravitation und Elektrizität. Offprint: S. B. preuss. Akad. Wiss., 1925, pp.414-419. Original wrappers. Mint. (Weil 147 / Boni 155).2. Neue Möglichkeit für eine einheitliche Feldtheorie von Gravitation und Elektrizität. Offprint: S. B. preuss. Akad. Wiss., 1928, pp.235-245. Original wrappers. Mint. (Weil 162/ Boni 175).3. Zur einheitlichen Feldtheorie. Offprint: S. B. preuss. Akad. Wiss., 1929, pp.2-7. Original wrappers. Mint. (Weil 165/ Boni 183).4. Einheitliche Feldtheorie und Hamiltonsches Prinzip. Offprint: S. B. preuss. Akad. Wiss., 1929, pp.156-159. Original wrappers. Mint. (Weil 166/ Boni 184).5. Über den gegenwärtigen Stand der Feldtheorie. In: Festschrift Dr. A. Stodola, Zürich, Füssli, 1929, pp.126-132. Publishers full cloth. Spine slightly faded. Otherwise mint. (Weil 168 / Boni 178).All in all a very fine set.‎

‎Offprint of all four papers and first edition of the final essay, constituting Einstein's attempt toward creating a unified field theory: ""a new theory of space with a view to unification of all forms of activity that fall within the sphere of physics, giving them a common explanation"" (PMM416). The task of unifying nuclear, electromagnetic, and gravitational force is nowadays by many considered the holy grail of theoretical physics.Maxwell was the first to develop such a theory when he described the forces of electricity and magnetism as the single force electromagnetism. After Einstein had completed his general theory of relativity (a field theory for gravitation), he turned his attention towards generalizing his theory even further to include Maxwell's theory. Even though Einstein never succeeded in completing this task, in the way that he finished his earlier theories, he pioneered and explored many areas of this subject. ""It had been repeatedly observed that Einstein's general theory of relativity necessitated a pluralistic explanation of the universe. In 1925 he announced that he had resolved this difficulty but the announcement was premature. In 1928 he attacked the problem once more, only to find that Riemann's conception of space, on which the general theory was based, would not permit of a common explanation of electromagnetic and gravitational phenomena. In a series of papers [the present] devoted to the development of 'A Uniform Theory of Gravitation and Electricity' he outlined a new theory of space with a view to unification of all forms of activity that fall within the sphere of physics, giving them a common explanation. All that would then remain to complete a scientific unison is the correlation of the organic and inorganic"".PMM 416Barchas 586‎

‎Einheitliche Feldtheorie von Gravitation und Elektrizität (+) Neue Möglichkeit für eine einheitliche Feldtheorie von Gravitation und Elektrizität (+) Zur einheitlichen Feldtheorie (+) Einheitliche Feldtheorie und Hamiltonsches Prinzip - [PMM 416 - A NEW THEORY OF GRAVITATION]‎

‎Berlin, Königlich Akademie der Wissenschaften, 1925-1929. 1. Einheitliche Feldtheorie von Gravitation und Elektrizität., 1925, pp. 414-419. Uncut, unopened n the original printed wrappers. missing small parts of spine and upper part of front wrapper detached, otherwise fine. (Weil 147 / Boni 155).2. Neue Möglichkeit für eine einheitliche Feldtheorie von Gravitation und Elektrizität. Offprint: S. B. preuss. Akad. Wiss., 1928, pp.235-245. In the original yellow wrappers. Very fine and clean. (Weil 162/ Boni 175).3. Zur einheitlichen Feldtheorie. Offprint: S. B. preuss. Akad. Wiss., 1929, pp.2-7. In the original yellow wrappers. Very fine and clean. (Weil 165/ Boni 183).4. Einheitliche Feldtheorie und Hamiltonsches Prinzip. Offprint: S. B. preuss. Akad. Wiss., 1929, pp.156-159. In the original yellow wrappers. Very fine and clean. (Weil 166/ Boni 184).‎

‎Fine collection, three in offprint and one in the original printed wrappers, of the four papers that together constitute Einstein's attempt towards creating a unified field theory: ""a new theory of space with a view to unification of all forms of activity that fall within the sphere of physics, giving them a common explanation"" (PMM416). The task of unifying nuclear, electromagnetic, and gravitational force is nowadays by many considered the holy grail of theoretical physics.Maxwell was the first to develop such a theory when he described the forces of electricity and magnetism as the single force electromagnetism. After Einstein had completed his general theory of relativity (a field theory for gravitation), he turned his attention towards generalizing his theory even further to include Maxwell's theory. Even though Einstein never succeeded in completing this task, in the way that he finished his earlier theories, he pioneered and explored many areas of this subject.""It had been repeatedly observed that Einstein's general theory of relativity necessitated a pluralistic explanation of the universe. In 1925 he announced that he had resolved this difficulty but the announcement was premature. In 1928 he attacked the problem once more, only to find that Riemann's conception of space, on which the general theory was based, would not permit of a common explanation of electromagnetic and gravitational phenomena. In a series of papers [the present] devoted to the development of 'A Uniform Theory of Gravitation and Electricity' he outlined a new theory of space with a view to unification of all forms of activity that fall within the sphere of physics, giving them a common explanation. All that would then remain to complete a scientific unison is the correlation of the organic and inorganic"".PMM 416Barchas 586Weil 147, 162, 165 & 166.‎

‎La gravitation thermodynamique et ses conséquences. La précision des équinoxes et l'inversion océanique. Premiers éléments de thermodynamique céleste‎

‎Paris, Fischbacher, 1925, in-8, 216 pages, exemplaire broché, Seconde édition, la première paru en 1921, de cet ouvrage dans lequel Vincent remet en cause la théorie de la gravitation de Newton, mais aussi la Mécanique Céleste de Laplace : "Cet ouvrage a pour but d'expliquer la gravitation par la chaleur solaire, transformée en énergie mécanique [...] La théorie thermodynamique de la gravitation se place à peu près sur le terrain de la science naturelle. Elle n'a recours qu'à une seule hypothèse : la résistance de l'éther". Exemplaire entièrement non coupé, à l'état de neuf. 216 pages ‎

‎Mach's Principle and a Relativistic Theory of Gravitation. - [THE BRANS-DICKE THEORY - THE FAMOUS CONTESTOR TO EINSTEIN'S GENERAL RELATIVITY]‎

‎Lancaster, American Institute of Physics, 1961. Lex8vo. Volume 124, November 1, No. 3, 1961 of ""The Physical Review"", Second Series. Entire volume offered. In the original printed blue wrappers. Minor discolouring to wrappers, and bottom corner of front wrapper slightly bent. Previous owner's name to top right corner of front wrapper. Overall a very nice and clean copy. Pp. 925-939. [Entire issue: Pp. 637-964].‎

‎First publication of the influential paper in which the Brans-Dicke theory of gravitation, a theoretical framework to explain gravitation, is presented for the first time. The theory is probably the most famous contestor to Einstein's general theory of relativity. ""The best motivated, least complicated, and relatively most viable among the alternatives to general relativity is probably the scalar-tensor theory of gravitation proposed in 1961 by Carl Brans and Robert Dicke"" (Jammer, Max, Concepts of mass in contemporary physics and philosophy, 2000, p. 136).‎

‎APPENDIX FOR THE SECOND EDITION [of The Meaning of Relativity] + APPENDIX II. GENERALIZED THEORY OF GRAVITATION. - [ORIGINAL PROOF-COPY]‎

‎[1950]. 8vo. Original proof-copy (of the latest stage, presumably final proof, in the same format as the printed version and with no corrections), printed on rectos and versos. Stapled twice in left margin. A few marginal creases. A (proof-) number to upper left corner in red ink (297). Pp. 109-148 + tipped-in errata slip at p. 147.‎

‎Very rare original proof-copy of the two highly important appendices for Einstein's ""The Meaning of Relativity"", third edition, 1950, the second appendix being one of the most important pieces Einstein ever wrote, namely the appendix ""in which he described his most recent work on unification"" (Pais), and the work which was hailed by The New York Times under the heading ""New Einstein theory gives a master key to the universe"". The first appendix, which appeared for the second edition of the work, remained unchanged throughout the history of ""the Meaning of Relativity"" and was written because ""Since the first edition of this little book some advances have been made in the theory of relativity. [...] The first step forward is the conclusive demonstration of the existence of the red shift of the spectral lines by the (negative) gravitational potential of the place of origin"" [...] A second step forward, which will be mentioned briefly, concerns the law of motion of a gravitating body."" [...] A third step forward, concerning the so-called ""cosmologic problem,"" wiil be considered here in detail..."" (pp. 109-10). The present 40 pages constitute the final proof-copy of the entire appendices I and II to the Generalized Theory of Gravitation, exactly as they appeared in the third edition (Princeton in 1950). Einstein's ""The Meaning of Relativity"" was originally published in 1922, on the basis of his ""Vier Vorlesungen ueber Relativitetstheorie"" given at Princeton in 1921. A second edition, with an appendix (appendix I) appeared in 1945 (several issues and editions of this appeared also), and in 1949 the third edition, with the seminal Appendix II printed for the first time, appears (also appeared in 1950, in Princeton). In 1950 a revised edition of the third edition appears, having Appendix II slightly revised, and in 1953 the heavily revised fourth edition appears. THIS IS THE PROOF-COPY OF APPENDICES I AND II FOR THE ""THIRD EDITION, INCLUDING THE GENERALIZED THEORY OF GRAVITATION"" (PRINCETON, 1950). The main focus of the work throughout all these editions of the work since 1949 is Appendix II, which deals with Einstein's main interest, the generalization of the Gravitation Theory, which was to unite the general theory of relativity with electromagnetism, recovering an approximation for quantum theory, and presenting us with a theory to explain the universe as a unified entity, the ultimate goal for the greatest physicist that ever lived. ""This was Einstein's ultimate response to the mechanical-electromagnetic crisis in physical theory he had first talked about in the opening of his 1905 light quantum-paper."" (Nandor, in D.S.B., p. 330). It was indeed Einstein's aim to provide an explanation of the universe through his unified field theory, although he was well aware that his sort of field theory might not exist. However, even the establishing of the non-existence of it could bring us closer to an explanation than we had ever been before. There is no topic of greater importance to Einstein than his theory of unification. ""In 1949 Einstein wrote a new appendix for the third edition of his ""The Meaning of Relativity"" in which he described his most recent work on unification. It was none of his doing that a page of his manuscript appeared on the front page of ""The New York Times"" under the heading ""New Einstein theory gives a master key to the universe"". He refused to see reporters and asked Helen Dukas to relay this message to them: ""Come back and see me in twenty years""."" (Pais, p. 350).‎