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Author: Arthur James Wells
Publisher:
ISBN:
Category : Bibliography, National
Languages : en
Pages : 1926
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Book Description
Author: Arthur James Wells
Publisher:
ISBN:
Category : Bibliography, National
Languages : en
Pages : 1926
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Author: Peter Harper
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 62
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Book Description
Author: Rudolf Ernst Peierls
Publisher: Princeton University Press
ISBN: 9780691082424
Category : Science
Languages : en
Pages : 180
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Book Description
Problems in theoretical physics often lead to paradoxical answers; yet closer reasoning and a more complete analysis invariably lead to the resolution of the paradox and to a deeper understanding of the physics involved. Drawing primarily from his own experience and that of his collaborators, Sir Rudolf Peierls selects examples of such "surprises" from a wide range of physical theory, from quantum mechanical scattering theory to the theory of relativity, from irreversibility in statistical mechanics to the behavior of electrons in solids. By studying such surprises and learning what kind of possibilities to look for, he suggests, scientists may be able to avoid errors in future problems. In some cases the surprise is that the outcome of a calculation is contrary to what physical intuition seems to demand. In other instances an approximation that looks convincing turns out to be unjustified, or one that looks unreasonable turns out to be adequate. Professor Peierls does not suggest, however, that theoretical physics is a hazardous game in which one can never foresee the surprises a detailed calculation might reveal. Rather, he contends, all the surprises discussed have rational explanations, most of which are very simple, at least in principle. This book is based on the author's lectures at the University of Washington in the spring of 1977 and at the Institut de Physique Nucleaire, University de Paris-Sud, Orsay, during the winter of 1977-1978.
Author: Peter O. K. Krehl
Publisher: Springer Science & Business Media
ISBN: 3540304215
Category : Science
Languages : en
Pages : 1298
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Book Description
This unique and encyclopedic reference work describes the evolution of the physics of modern shock wave and detonation from the earlier and classical percussion. The history of this complex process is first reviewed in a general survey. Subsequently, the subject is treated in more detail and the book is richly illustrated in the form of a picture gallery. This book is ideal for everyone professionally interested in shock wave phenomena.
Author: W. R. Shea
Publisher: Springer Science & Business Media
ISBN: 9789027715845
Category : Biography & Autobiography
Languages : en
Pages : 274
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Book Description
and less as the emanation unden\'ent radioactive decay, and it became motion less after about 30 seconds. Since this process was occurring very rapidly, Hahn and Sackur marked the position of the pointer on a scale with pencil marks. As a timing device they used a metronome that beat out intervals of approximately 1. 3 seconds. This simple method enabled them to determine that the half-life of the emanations of actinium and emanium were the same. Although Giesel's measurements had been more precise than Debierne's, the name of actinium was retained since Debierne had made the discovery first. Hahn now returned to his sample of barium chloride. He soon conjectured that the radium-enriched preparations must harbor another radioactive sub stance. The liquids resulting from fractional crystallization, which were sup posed to contain radium only, produced two kinds of emanation. One was the long-lived emanation of radium, the other had a short life similar to the emanation produced by thorium. Hahn tried to separate this substance by adding some iron to the solutions that should have been free of radium, but to no avail. Later the reason for his failure became apparent. The element that emitted the thorium emanation was constantly replenished by the ele ment believed to be radium. Hahn succeeded in enriching a preparation until it was more than 100,000 times as intensive in its radiation as the same quantity of thorium.
Author: K. Gavroglu
Publisher: Springer Science & Business Media
ISBN: 9401735964
Category : Science
Languages : en
Pages : 453
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Book Description
The articles in this volume have been first presented during an international Conference organised by the Greek Society for the History of Science and Technology in June 1990 at Corfu. The Society was founded in 1989 and planned to hold a series of meetings to impress upon an audience comprised mainly by Greek students and scholars, the point that history of science is an autonomous discipline with its own plurality of approaches developed over the years as a result of long discussions and disputes within the community of historians of science. The Conference took place at a time when more and more people came to realise that the future of the Greek Universities and Research Centres depends not only on the progress of the institutional reforms, but also very crucially on the establishment of new and modern subject areas. Though there have been significant steps towards such a direction in the physical sciences, mathematics and engineering, the situation in the so-called humanities has been, at best, confusing. Political expediencies of the post war years and ideological commitments to a glorious, yet very distant past, paralysed the development of the humanities and constrained them within a framework which could not allow much more than a philological approach.
Author: Colchester (England). Public Library
Publisher:
ISBN:
Category :
Languages : en
Pages : 22
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Author: R. Peierls
Publisher: Elsevier
ISBN: 0080871070
Category : Science
Languages : en
Pages : 713
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Book Description
``Nuclear Physics'' deals with Bohr's work on nuclear physics which began in the pre-1932 days with his thinking deeply, but inconclusively about the seeming contradictions then presented by the evidence about the nucleus. In 1936, Bohr recognised and described the insights provided by neutron scattering experiments; the excitement of this new understanding and its extension and consolidation occupied much of the subsequent years. In 1939, he was again first in understanding the essential features of the newly discovered phenomenon of fission, applying successfully the point of view of nuclear reactions which he had developed over the past three years. Later, in 1949-50, he was impressed by the success of the nuclear shell model, which on the face of it seemed hard to reconcile with the picture of the closely interacting nucleons which he had pioneered in 1936. Bohr put much effort into clarifying this paradox.
Author: Indira Chowdhury
Publisher:
ISBN: 9780143066729
Category : Nuclear physicists
Languages : en
Pages : 258
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Book Description
Scientist, citizen, artist-the Renaissance man of India Homi Jehangir Bhabha, one of India's outstanding scientists, shouldered the beginnings of India's nuclear programme. He was the first chairman of India's Atomic Energy Commission, and the builder of two of India's most significant scientific institutions-the Tata Institute of Fundamental Research and the Atomic Energy Establishment, renamed Bhabha Atomic Research Centre in 1966. A Masterful Spirit presents the life and achievements of the man through previously unpublished letters, and photographs and paintings, and the recollections of his family, friends, colleagues and students. Designed to convey the flavour of Bhabha's life and times, this book tells the inspiring story of a man whom Sir C.V. Raman described as 'the modern equivalent of Leonardo da Vinci'. It acquaints us with the many facets of Bhabha's personality: physicist, institution-builder, concerned citizen, artist, connoisseur of the arts, designer of gardens and, above all, a charismatic and compassionate human being.
Author: Rudolf Peierls
Publisher: Princeton University Press
ISBN: 9780691025223
Category : Science
Languages : en
Pages : 124
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Book Description
Like its predecessor, this book by the renowned physicist Sir Rudolf Peierls draws from many diverse fields of theoretical physics to present problems in which the answer differs from what our intuition had led us to expect. In some cases an apparently convincing approximation turns out to be misleading; in others a seemingly unmanageable problem turns out to have a simple answer. Peierls's intention, however, is not to treat theoretical physics as an unpredictable game in which such surprises happen at random. Instead he shows how in each case careful thought could have prepared us for the outcome. Peierls has chosen mainly problems from his own experience or that of his collaborators, often showing how classic problems can lend themselves to new insights. His book is aimed at both graduate students and their teachers. Praise for Surprises in Theoretical Physics: "A beautiful piece of stimulating scholarship and a delight to read. Physicists of all kinds will learn a great deal from it."--R. J. Blin-Stoyle, Contemporary Physics
