Download or read book The Correspondence Principle 1918 1923 written by J.R. Nielsen and published by Elsevier. This book was released on 2013-10-22 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: During this period Bohr's researches had a double aim: to develop a consistent and adequate quantum theory and to explain the structures and properties of the elements of the periodic system. ``The Correspondence Principle'' contains the papers and manuscripts dealing mainly with the elaboration of the general quantum theory.
Download or read book Niels Bohr and the Quantum Atom written by Helge Kragh and published by Oxford University Press. This book was released on 2012-05-03 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Niels Bohr and the Quantum Atom gives a comprehensive account of the birth, development, and decline of Bohr's atomic theory. It presents the theory in a broad context which includes not only its technical aspects, but also its reception, dissemination, and applications in both physics and chemistry.
Download or read book La pr hension du r el written by Andre Coret and published by Routledge. This book was released on 2021-09-01 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le réel est (réellement) non représentable: telle est la découverte majeure que les scientifiques et les physiciens en particulier, ont faite pour leur compte au cours du XXe siècle. Mais, le savent-ils? The real is (really) unrepresentable: this is the major discovery that scientists and physicists in particular have made on their own during the twentieth century.
Download or read book La science et le monde moderne d Alfred North Whitehead written by François Beets and published by Walter de Gruyter. This book was released on 2013-05-02 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second international Chromatiques whiteheadiennes conference was devoted exclusively to the exegesis and contextualization of Whitehead's Science and the Modern World (1925). In order to elucidate the meaning and significance of this epoch-making work, the Proceedings are designed to form "companion" volume. With one paper devoted to each of its thirteen chapters, the Proceedings aim, on the one hand, to identify the specific contribution of each chapter to Whitehead's own research program - that is to say, to put its categories into perspective by means of an internal analysis- and, on the other hand, to identify its global impact in the history of ideas.
Download or read book Isis written by George Sarton and published by . This book was released on 1923 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Brief table of contents of vols. I-XX" in v. 21, p. [502]-618.
Download or read book Wave Propagation and Group Velocity written by Léon Brillouin and published by Academic Press. This book was released on 2013-10-22 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wave Propagation and Group Velocity contains papers on group velocity which were published during the First World War and are missing in many libraries. It introduces three different definitions of velocities: the group velocity of Lord Rayleigh, the signal velocity of Sommerfeld, and the velocity of energy transfer, which yields the rate of energy flow through a continuous wave and is strongly related to the characteristic impedance. These three velocities are identical for nonabsorbing media, but they differ considerably in an absorption band. Some examples are discussed in the last chapter dealing with guided waves, and many other cases of application of these definitions are quoted. These problems have come again into the foreground, in connection with the propagation of radio signals and radar. Reflection in the Heaviside layers requires a real knowledge of all these different definitions. Group velocity also plays a very important role in wave mechanics and corresponds to the speed of a particle. The present book should be very useful to physicists and radio engineers and should give them a good basis for new discussions and applications.
Download or read book Aims and Prospects of Semiotics written by Herman Parret and published by John Benjamins Publishing. This book was released on 1985 with total page 1153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation. The two monumental volumes making up this collection of essays hold the names of the world s most renowned and respected scholars in the field of semiotics, and does more than full justice to the extraordinary career of Algirdas Julien Greimas. Before this mer á boire of some seventy five essays kicks off, the editors present a state-of-the art introduction, which is followed by a unique bio-bibliography of A.J. Greimas that trails the career of the master writer in unparalleled fashion through the years.
Download or read book La th orie des quanta et l atome de Bohr written by Léon Brillouin and published by . This book was released on 1922 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Collected Works of P A M Dirac Volume 1 written by Paul Adrien Maurice Dirac and published by Cambridge University Press. This book was released on 1995-10-26 with total page 1374 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive collection of the scientific papers of one of this century's most outstanding physicists.
Download or read book The Physics of Nuclear Reactors written by Serge Marguet and published by Springer. This book was released on 2018-02-26 with total page 1462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume offers readers a progressive and highly detailed introduction to the complex behavior of neutrons in general, and in the context of nuclear power generation. A compendium and handbook for nuclear engineers, a source of teaching material for academic lecturers as well as a graduate text for advanced students and other non-experts wishing to enter this field, it is based on the author’s teaching and research experience and his recognized expertise in nuclear safety. After recapping a number of points in nuclear physics, placing the theoretical notions in their historical context, the book successively reveals the latest quantitative theories concerning: • The slowing-down of neutrons in matter • The charged particles and electromagnetic rays • The calculation scheme, especially the simplification hypothesis • The concept of criticality based on chain reactions • The theory of homogeneous and heterogeneous reactors • The problem of self-shielding • The theory of the nuclear reflector, a subject largely ignored in literature • The computational methods in transport and diffusion theories Complemented by more than 400 bibliographical references, some of which are commented and annotated, and augmented by an appendix on the history of reactor physics at EDF (Electricité De France), this book is the most comprehensive and up-to-date introduction to and reference resource in neutronics and reactor theory.
Download or read book Erwin Schrodinger written by Michel Bitbol and published by Atlantica Séguier Frontières. This book was released on 1992 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heisenberg s Uncertainties and the Probabilistic Interpretation of Wave Mechanics written by Louis de Broglie and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: LOUIS DE BROGLIE AND THE SINGLE QUANTUM PARTICLE By A. O. Barut We have abundant evidence and testimony that Louis de Broglie deeply cared about the foundations, the meaning, and our understanding of quantum theory in general and of wave mechanics in particular. So, too, did Erwin Schrodinger, along with Einstein, Bohr, Dirac, and Heisenberg. For de Broglie and Schrodinger this preoccupation meant not simply the acceptance of a novel set of rules, but a constant struggle and a search for complete clarity about the way in which the new theory fits into the great classical traditions of an objective physical world view. We may call this a striving for "physical rigor," rigor in reasoning, or intellectual rigor. There is not only mathematical rigor inside an axiomatic system with which everybody agrees, but there is, and there should be, rigor also in our concepts and methods. To this kind of rigor belongs the unity, the economy and simplicity, and the consistency of physical theories; naturally along with as complete and as clear an understanding of phenomena as possible. No loose ends, no proliferation of poorly tested and phenomenological entities, no bending of logic and compromise, and no handwaiving arguments can be tolerated. Unfortunately this kind of rigor seems to be missing in today's forefront of fundamental physical theories, viz. , particle or high-energy physics.
Download or read book Inverse Sturm Liouville Problems written by B. M. Levitan and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-07-12 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interest in inverse problems of spectral analysis has increased considerably in recent years due to the applications to important non-linear equations in mathematical physics. This monograph is devoted to the detailed theory of inverse problems and methods of their solution for the Sturm-Liouville case. Chapters 1--6 contain proofs which are, in many cases, very different from those known earlier. Chapters 4--6 are devoted to inverse problems of quantum scattering theory with attention being focused on physical applications. Chapters 7--11 are based on the author's recent research on the theory of finite- and infinite-zone potentials. A chapter discussing the applications to the Korteweg--de Vries problem is also included. This monograph is important reading for all researchers in the field of mathematics and physics.
Download or read book History of Nonlinear Oscillations Theory in France 1880 1940 written by Jean-Marc Ginoux and published by Springer. This book was released on 2017-04-18 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reveals the French scientific contribution to the mathematical theory of nonlinear oscillations and its development. The work offers a critical examination of sources with a focus on the twentieth century, especially the period between the wars. Readers will see that, contrary to what is often written, France's role has been significant. Important contributions were made through both the work of French scholars from within diverse disciplines (mathematicians, physicists, engineers), and through the geographical crossroads that France provided to scientific communication at the time. This study includes an examination of the period before the First World War which is vital to understanding the work of the later period. By examining literature sources such as periodicals on the topic of electricity from that era, the author has unearthed a very important text by Henri Poincaré, dating from 1908. In this work Poincaré applied the concept of limit cycle (which he had introduced in 1882 through his own works) to study the stability of the oscillations of a device for radio engineering. The “discovery” of this text means that the classical perspective of the historiography of this mathematical theory must be modified. Credit was hitherto attributed to the Russian mathematician Andronov, from correspondence dating to 1929. In the newly discovered Poincaré text there appears to be a strong interaction between science and technology or, more precisely, between mathematical analysis and radio engineering. This feature is one of the main components of the process of developing the theory of nonlinear oscillations. Indeed it is a feature of many of the texts referred to in these chapters, as they trace the significant developments to which France contributed. Scholars in the fields of the history of mathematics and the history of science, and anyone with an interest in the philosophical underpinnings of science will find this a particularly engaging account of scientific discovery and scholarly communication from an era full of exciting developments.
Download or read book The Relativistic Deduction written by Émile Meyerson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: When the author of Identity and Reality accepted Langevin's suggestion that Meyerson "identify the thought processes" of Einstein's relativity theory, he turned from his assured perspective as historian of the sciences to the risky bias of contemporary philosophical critic. But Emile Meyerson, the epis temologist as historian, could not find a more rigorous test of his conclusions from historical learning than the interpretation of Einstein's work, unless perhaps he were to turn from the classical revolution of Einstein's relativity to the non-classical quantum theory. Meyerson captures our sympathy in all his writings: " . . . the role of the epistemologist is . . . in following the development of science" (250); the study of the evolution of reason leads us to see that "man does not experience himself reasoning . . . which is carried on unconsciously," and as the summation of his empirical studies of the works and practices of scientists, "reason . . . behaves in an altogether predict able way: . . . first by making the consequent equivalent to the antecedent, and then by actually denying all diversity in space" (202). If logic - and to Meyerson the epistemologist is logician - is to understand reason, then "logic proceeds a posteriori. " And so we are faced with an empirically based Par menides, and, as we shall see, with an ineliminable 'irrational' within science. Meyerson's story, written in 1924, is still exciting, 60 years later.
Download or read book Transmutation Operators and Mean periodic Functions Associated with Differential Operators written by K. Trimèche and published by CRC Press. This book was released on 1988 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
