Rosenfeld leon (8 Ergebnisse)
Verlag: Nature, 1950., Offprint from: 1950
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Ser.: vol. 166, p. 883, 1950. Signed by Abraham Pais. Fine.
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Hardcover. Zustand: Fine. Zustand des Schutzumschlags: Near Fine. First UK Edition. X,159 Pp. Grey Boards, Gilt. First Printing (Uk). Fine In Near Fine Dj, Price Clipped.
Verlag: Interscience Publishers, Inc, New York 1948
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Hardcover. Includes: illustrations, diagrams, index. xix, 543, corrigendum, Fold-outs. Occasional footnotes. References. Tables. Author Index. Subject Index. Prof. Rosenfeld is one of the leading theoretical physicists of to-day and is distinguished not only for his great original contributions to the most difficult and deep par…ts of modern quantum mechanics and nuclear structure, but also for his wide knowledge and scholarship. He is now completing a book on the quantum theory of nuclear forces which should prove valuable to all theoretical workers on nuclear structure. In his new position in Manchester he will add greatly to the strength of theoretical physics in England. He will be in very close touch with the experimental researches being carried out in the laboratory of Prof. P. M. S. Blackett. The nuclear force (or nucleon nucleon interaction or residual strong force) is the force between protons and neutrons, subatomic particles that are collectively called nucleons. The nuclear force is responsible for binding protons and neutrons into atomic nuclei. Neutrons and protons are affected by the nuclear force almost identically. Since protons have charge +1 e, they experience a strong electric field repulsion (following Coulomb's law) that tends to push them apart, but at short range the attractive nuclear force overcomes the repulsive electromagnetic force. The mass of a nucleus is less than the sum total of the individual masses of the protons and neutrons which form it. The difference in mass between bound and unbound nucleons is known as the mass defect. Energy is released when some large nuclei break apart, and it is this energy that is used in nuclear power and nuclear weapons. Good in poor dust jacket. Signed by previous owner. Some page discoloration. DJ worn, torn, soiled with tears and chips. Presumed first U. S. edition/first printing. Part II pub. 1949.
Verlag: Trondheim, F. Bruns. 1958
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2 Bände. Gr.-8°. 4 S. - 5 S. Original-Broschuren (kaum merklich knickspurig). In sehr schöner Erhaltung. Det Kongelige Norske videnskabers selskab forhandlinger, Band 31, Nr. 9 und Nr. 10. Sprache: Englisch.
Verlag: Julius Springer, 1930., In: Zeitschrift fur Physik, Vol. 63, 1930. Berlin: 1930
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232 x 160 mm. 8vo. 574-575 pp. [Entire volume: vii, [1], 868 pp.] Navy cloth, gilt spine. Blind-stamp of the Carnegie Institution of Washington, Mount Wilson Observatory. Fine. FIRST EDITION. In January 1928 Pauli and Heisenberg began their work on relativistic formulation of quantum electrodynamics which were published in their… famous paper in the Zeitschrift fur Physik in 1929 (Vol. 56). In that paper, Pauli and Heisenberg gave a general proof that their formalism is compatible with relativity; "their proof appeared to demand that the Hamiltonian satisfy a certain constraint. In 1930 it was shown by Rosenfeld that this conclusion is due to a computational error; there is no such constraint. Much later Rosenfeld told me that he regarded his one-and-a-half-page article as HIS BEST CONTRIBUTION TO PHYSICS. IT IS A PITY THAT THIS PAPER IS NOT INCLUDED IN THE EDITION OF HIS SELECTED WRITINGS." Pais. Leon Rosenfeld was Abraham Pais' doctoral advisor at the University of Utrecht. Rosenfeld became Bohr's closest collaborator during the 1930s. Later, Rosenfeld became a Professor of Physics in the United States. This volume of the Zeitschrift fur Physik also contains a paper by Victor Weisskopf and Eugene P. Wigner, "Berechnung der naturlichen Linienbreite auf Grund der Diracschen Lichttheorie," pp. 54-73. Of this paper, Wigner has remarked: "I wrote a paper with Victor Weisskopf in Gottingen on the natural width of spectral lines. Weisskopf felt that a certain mathematical integral could be made to vanish. I showed him why the integral was infinite. The theory was imperfect then, and even now it is less elegant than it should be. But it served its purpose then, and has held up rather well in all the years since." Wigner, Recollections, p. 113. See: Dresden, H. A. Kramers, p. 360. Pais, Inward bound, p. 342.
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NUCLEAR FORCES by L. Rosenfeld, Professor of Theoretical Physics in the University of Manchester. North-Holland Publishing Company Amsterdam / Interscience Publishers Inc. New York, 1. Auflage 1948, ERSTAUSGABE, 542 SS. und Kartenanhang gebunden (Hardcover, Oln. gr. 8 to), Block innen leicht angeplatzt, sonst gut erhalten.
Verlag: Kobenhavn: Levin & Munksgaard, 1933
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Zustand: Fine. *Price HAS BEEN REDUCED by 10% until Monday, June 22 (weekend SALE item)* first edition; 65 pp.; pink paper wrappers slightly faded at the spine, else fine. - If you are reading this, this item is actually (physically) in our stock and ready for shipment once ordered. We are not bookjackers. Buyer is responsible f…or any additional duties, taxes, or fees required by recipient's country. Photos available upon request.
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Copenhagen, Levin & Munksgaard, 1933. + Berlin, Springer 1931. + Lancaster, American Physical Society, 1950. First paper: Published as no. 8 of vol. 12 in 'Kgl. Dankse Vid. Selsk. Math.-Fys. Medd.'. 8vo. Original printed wrappers. With the ownership signature of Danish physicist Mogens Pihl (Prof. of physics at Copenhagen Univer…sity 1957-77). 65,(1) pp. Second paper: Published in 'Zeitschrift für Physik', vol. 69, pp.56-69. The entire volume in contemporary half cloth offered here.Third paper: Published in 'The Physical Review', vol. 78, no. 6, pp.794-798. The entire issue in original printed wrappers offered here. With rubber stamp of Danish physicist Christian Møller (Author of "The Theory of Relativity, 1952"). First editions of these fundamental papers in the development of quantum field theory. The process of measuring electromagnetic fields involves the observation of charged test bodies in those fields. Therefore the theory of electrodynamics is an inseparable extension of mechanics. A quantum theory of fields thus inherits, in some form, the limitations of measurement which lie at the foundation of quantum mechanics. In 1931 Landau and Peierls published a critical analysis of the consequences of such limitations in a relativistic quantum theory of fields (second paper offered). Landau and Peierls came to the negative conclusion that in several cases, the concept of momentum was without physical meaning and quantities such as the strength of a field was un-measurable. In their famous paper from 1933 Bohr and Rosenfeld (first paper offered) carefully reviewed the arguments of Landau and Peierls and showed, through the use of particular measuring arrangements, that a consistent quantum theory of fields is possible without further limitations than the ones which secure the consistency of quantum mechanics. The BR-paper is often credited with having laid the foundation for quantum electrodynamics. Bohr continued his work in this field, and in 1937 he completed a manuscript entitled "Field and Charge Measurement in Quantum Theory", but this was never published. When, in the late 1940s the important work on QED by Tomonaga, Schwinger, Dyson, and Feynman appeared in The Physical Review, Bohr and Rosenfeld again joined and published the essentials of the 1937 manuscript in the same journal (third paper offered).See Abraham Pais: Bohr's Times, pp.358-364. Mehra & Rechenberg: The Historical Development of Quantum Theory, vol. 6, pp.697-703. Collected Works of Niels Bohr, vol. 7, pp.3-33.
