Fermi Rasetti (9 results)

Hardcover. Condition: Fine. ++Nobel Prize in Physics (1938) Effort. THE COMING OF NUCLEAR ENERGY++ Two volumes very nicely rebound in cloth-backed marbled boards. Excellent copies (save for a couple of foxing marks on the title page of 1935; also there is an old and mostly-faded dampstain in the bottom right corner of about 300pp in the 1934 volume (Measuring about 15x20mm or so).[++] Fermi, et alia "Artificial Radioactivity Produced by Neutron Bombardment" in Proceedings of the Royal Society of London, A 146, 1934; 10x7", vi, 942pp; London: Harrison & Sons. AND Fermi, et alia "Artificial Radioactivity Produced by Neutron Bombardment II" and others in Proceedings of the Royal Society of London, A 149, 1935; 10x7", 600, [4]pp; London: Harrison & Sons. [++] The Fermi, Almaldi et al paper is an important paper that appeared in the Royal Society Proceedings in 1934 and 1935. This is a very important element of nuclear physics; making a non-radioactive element radioactive by neutron bombardment resulting in a new, unstable radiation-emitting isotope and therefore artificially radioactive--it is the first demonstration of neutron-induced radioactivity. [++] "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 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. In October 1935 Fermi and his collaborators, now including Pontecorvo, observed that neutrons passed through substances containing hydrogen have increased efficiency for producing artificial radioactivity. Fermi interpreted this effect as due to the slowing down of the neutrons by elastic collisions with hydrogen atoms. Thus slow neutrons were discovered. The study of slow neutrons was to form the main object of Fermi s work for several years thereafter."--Complete DSB online [++] (The title of Fermi's Nobel Prize lecture of 12 December 1938 is the same as that of this paper ("Artificial radioactivity produced by neutron bombardment")). [++] Also bound in the 1935 volume is the important paper by F. London and H. London on the London equations ("First successful attempt at characterizing the electrodynamic behavior of superconductors.") appearing on pp 71-88 of 1935. [++] "The London Equations were the first successful attempt at characterizing the electrodynamic behavior of superconductors."--Aria Yom, "The London Equations" "London's equations (formulated by brothers Fritz and Heinz London in 1935) are a set of equations that describe the electromagnetic properties of superconductors. These equations are fundamental to understanding the behaviour of superconductors, particularly how they expel magnetic fields (the Meissner effect) and conduct electricity without resistance."--Dandeswar Deka on the London Equations. [++] Also in 1934 is found: PMS Blackett "On the Technqiue of the Counter-Conrolled Cloud Chamber" pp 281-299. There are also papers by Harold Jeffreys, C.G. Darwin, F.W. Aston, Hans Bethe, W. Heitler, O.W. Richardson, and many others.

Soft cover. Condition: Near Fine. 1st Edition. First edition, journal issue in original printed wrappers, of the first detailed description of artificial radioactivity produced by neutron bombardment, and the enhanced effect due to slowing of the neutrons, discoveries that led to the development of nuclear power. "Fermi's work with slow neutrons prepared the way for the discovery of nuclear fission, the key to extracting energy from nuclear reactions" (Marburger, Enrico Fermi s impact on science, Nuclear News, Vol. 45 (2002), pp. 27-30). In fact, when bombarding thorium and uranium with neutrons, Fermi's team had actually observed nuclear fission, four years before Hahn and Strassmann, although at the time they placed a different interpretation on their results. "[This paper] contains the seeds of nearly all of the important ideas on neutrons that Fermi developed in succeeding years" (Segrè in Enrico Fermi: Note e Memorie, Vol. I, p. 811). Fermi was awarded the 1938 Nobel Prize in Physics "for his demonstrations of the existence of new radioactive elements produced by neutron irradiation, and for his related discovery of nuclear reactions brought about by slow neutrons." 8vo, pp. 239-500. Original printed wrappers.

(23 x 15,5 cm). SS. 161-250. Mit 23 Abbildungen. Original-Broschur. Erste Ausgabe. - "The most important and successful undertaking in 1925 was the study of the depolarization of resonance radiation under the action of an alternating magnetic field" (Segrè, Fermi S. 38). - Schnitt leicht stockfleckig, sonst gut erhalten. - Segrè 27.

Condition: Good. *Price HAS BEEN REDUCED by 10% until Tuesday, May 26 (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.

Condition: Good. *Price HAS BEEN REDUCED by 10% until Tuesday, May 26 (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 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.

Buckram. Condition: Good. No Jacket. Proc Roy Soc Vol. 146, 1934 pp. 438-500. Whole volume, contemporary brown buckram, good ex-lib. DW.

Condition: Very Good. *Price HAS BEEN REDUCED by 10% until Tuesday, May 26 (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 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.

1st Edition. FIRST EDITION of the LONDON EQUATIONS, "THE FIRST SUCCESSFUL ATTEMPT AT CHARACTERIZING THE ELECTRODYNAMIC BEHARIOR OF SUPERCONDUCTORS" (Yom, The London Equations). The second paper is part two of an important paper by Fermi and Segre, et al. explaining that slow neutrons are effective in creating nuclear reactions because of their large cross section. We offer Part I separately in Volume 146, 1934. THE LONDON EQUATIONS: The equations were developed by brothers Fritz and Heinz London in 1935 and published in the volume offered here. The equations "relate current to electromagnetic fields in and around a superconductor and are arguably the simplest meaningful description of superconducting phenomena. A major triumph of the equations is their ability to explain the Meissner effect, wherein a material exponentially expels all internal magnetic fields as it crosses the superconducting threshold" (Surhone, London Equations). CONDITION & DETAILS: London: Harrison & Sons. Complete. 4to (Quarto). 10 x 7 inches (250 x 175mm). [v], 600, [4]. In text illustrations throughout. Tightly and handsomely rebound in tan cloth over marbled paper boards (purposefully aged by the conservator). Clean and bright inside and out. Fine condition.

London, 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). These 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).