Fermi e e segré (5 Ergebnisse)
Verlag: Royal Society of London, 1935
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In den WarenkorbZustand: Good. *Price HAS BEEN REDUCED by 10% until Monday, Aug. 3 (SALE item)* 600 pp., complete volume 149, rebound in buckram with covers removed, hardcover, ex library else text clean and binding tight. - 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 for any additional duties, taxes, or fees required by recipient's country. Photos available upon request.
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In den WarenkorbBerlin, Springer, 1933. 8vo. In contemporary halv cloth with gilt lettering to spine. In "Zeitschrift für Physik", Bd. 82, 1933. Entire volume offered. Stamp to front free end-paper and titlepage, otherwise fine and clean. Pp. 729-49 [Entire volume: VIII, 838 pp.]. First German edition published the same year as the original ("S…ulla teoria delle strutture iperfini", published in Reale acc. d'Italia, memorie cl. scienze fisiche 4 (1933)) of Fermi and Segré's important paper on hyperfine structure. In 1930 Fermi started to work on the hyperfine structure of spectra lines, a subject that he further developed in collaboration with Segrè in 1932-3, the present paper being his being his final on the subject.Hyperfine structures was the research area the initially caught Fermi's interest in physics: "At this time quantum mechanics had reached its full development" nonrelativistic problems, at least in principle, were soluble except for mathematical difficulties. In this sense atomic physics was showing signs of exhaustion, and one could expect the next really important advances to be in the study of the nucleus. Realizing this, Fermi decided to switch to nuclear physics. He initially investigated the theory of the hyperfine structure of the spectral lines and the nuclear magnetic momenta (FP no. 57), a suitable subject for making the transition from atomic to nuclear physics.".
Artificial Radioactivity Produced by Neutron Bombardment (in Proceedings of the Royal Society, Series A: Volume 146, 1934)
Enrico Fermi, E. Amaldi, O. D'Agostino, F. Rasetti, E. Segre
Verlag: The Royal Society of London, 1934
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In den WarenkorbZustand: Good. *Price HAS BEEN REDUCED by 10% until Monday, Aug. 3 (SALE item)* 942 pp., complete volume 146, rebound in buckram with covers removed, hardcover, ex library else text clean and binding tight. Also contains contributions by Hans Bethe, Hinshelwood and R. A. Fisher (among others). - If you are reading this, this ite…m is actually (physically) in our stock and ready for shipment once ordered. We are not bookjackers. Buyer is responsible for any additional duties, taxes, or fees required by recipient's country. Photos available upon request.
Artifical Radioactivity Produced by Neutron Bombardment. Proceedings of the Royal Society, Series A: Mathematical and Physical Sciences, Vol. 146 No. 857, September 1, 1934
Enrico Fermi, E. Amaldi, O. D'Agostino, F. Rasetti, E. Segre
Verlag: The Royal Society of London, 1934
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In den WarenkorbZustand: Very Good. *Price HAS BEEN REDUCED by 10% until Monday, Aug. 3 (SALE item)* 262 pp., plates, with the Fermi et al. contribution at pages 483-500; original printed paper wrappers, light creases to the bottom corner of the front cover, else very good. - If you are reading this, this item is actually (physically) in our st…ock and ready for shipment once ordered. We are not bookjackers. Buyer is responsible for any additional duties, taxes, or fees required by recipient's country. Photos available upon request.
Artificial Radioactivity produced by Neutron Bombardment. (Communicated by Lord Rutherford) + Artificial Radioactivity produced by Neutron Bombardment - II. (Communicated by Lord Rutherford). 2 Papers.
"FERMI, E., E. AMALDI, O. D'AGOSTINO, F. RASETTI, E. SEGRÉ. - THE FIRST ARTIFICIAL RADIOACTIVITY BY NEUTRON BOMBARDMENT.
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In den WarenkorbLondon, Harrison and Sons, 1934 a. 1935. Royal8vo. Bound in 2 contemp. full cloth. Gilt lettering to spine. A stamp on verso of titlepages. In: "Proceedings of the Royal Society", Series A, Vol. 146 and vol. 149. VI,942 pp. + VIII,600 pp. (Entire volumes offered). The joint papers: pp. 483-500 (1934) and pp. 522-558 (1935). Thes…e seminal papers constitutes the description of the first realization of artificial radioactivity produced by neutron bombardment, and it is the first demonstration of neutron-induced radioactivity. These highlights and his many other results have left their imprint on the most diverse parts of physics. Fermi was awarded the Nobel prize in 1938 for these discoveries."Acting on this idea, (Fermi reasoned that neutrons should be more effective than alpha particles in producing radioactive elements because they are not repelled by the nuclear charge and thus have a much greater probability of entering the target nuclei) Fermi bombarded several elements of increasing atomic numbers with neutrons. He hoped to find an artificial radioactivity produced by the neutrons. His first success was with fluorine. The neutron source was a small ampul containing beryllium metal and radon gas. The detecting apparatus consisted of rather primitive Geiger-Müller counters. Immediately thereafter Fermi, with the help of Amaldi, D?Agostino, Rasetti, and Segrè, carried out a systematic investigation of the behavior of elements throughout the periodic table. In most cases they performed chemical analysis to identify the chemical element that was the carrier of the activity. In the first survey, out of sixty-three elements investigated, thirty-seven showed an easily detectable activity. The nuclear reactions of (n, a), (n, p), and (n, ?) were then identified, and all available elements, including uranium and thorium, were irradiated. In uranium and thorium the investigators found several forms of activity after bombardment but did not recognize fission. Fermi and his collaborators, having proved that no radioactive isotopes were formed between lead and uranium, put forward the natural hypothesis that the activity was due to transuranic elements. These studies, which were continued by Otto Hahn, Lise Meitner, Irène Joliot Curie, Frédéric Joliot, and Savitch, culminated in 1938 in the discovery of fission by Hahn and Fritz Strassmann."(DSB)."The present papers are a summary of these letters (the letters from the team communicated almost weakly to "Ricerca Scientifica") for the English speaking readers. "When we (Fermi and Segre) went to Cambridge, we discussed with him (rutherford), in great detail, our work. The work which had been accomplished up to that date by our group is summarized in a paper which was presented by Lord Rutherford to the Royal Society (Paper No. 98). The manuscript of this paper had been prepared in Rome and delivered to him in Cambridge. he read it immediately with great attention, made several corrections to improve our English, and turned it over to the Royal Society. I asked him whether it would be possible to obtain a speedy publication and he immediately answered "What did you think I was President of the Royal Society for ?" (Collected Papers of Enrico Fermi, Vol. I, p. 641).Volume 149 contains the importent joint paper on SUPERCONDUCTIVITY by the brothers FRITZ And H. LONDON "The Electromagnetic Equations of the Superconductor", pp. 71-88."In 1933 shortly before Heinz London joined his brother at Oxford, W. Meissner and R. Ochsenfeld made a startling discovery. It was well known that currents in superconductors flow in such a way as to shield points inside the material from changes in the external magnetic field. This indeed is an obvious property of any resistance less medium, fully discussed by Maxwell in 1873 long before the discovery of superconductivity. But a superconductor does more. Whereas a zero resistance medium only counteracts changes in the field, it actually tends to expel the field present in its interior before cooling. The London quickly saw its implications and in 1935 published a joint paper on the electrodynamics of superconductors, in which they replaced (paper by Deaver and Fairbanks) by a new phenomenological equation connecting the current with the magnetic rather than the electric field. "(DSB).