893 résultats
192447166Corning, N.Y., and Menasha, Wisc., The Physical Review, 1924. Royal8vo. Full buckram. Gilt lettering to spine. A stamp to top of titlepage and to front free endpaper. In: ""The Physical Review. A Journal of Experimental and theoretical Physics"", Vol. 24, Second Series. V,704 pp., textillustr. Van Vleck's papers: pp. 330-346 a. pp. 347-365. Internally clean and fine.
192447166Corning N.Y. and Menasha Wisc. The Physical Review 1924. Royal8vo. Full buckram. Gilt lettering to spine. A stamp to top of titlepage and to front free endpaper. In: "The Physical Review. A Journal of Experimental and theoretical Physics" Vol. 24 Second Series. V704 pp. textillustr. Van Vleck's papers: pp. 330-346 a. pp. 347-365. Internally clean and fine. <br/><br/><em>First appearance of Van Vleck's two importent papers in which he clarifies and extends the Principle of Correspondence."Van Vleck made his greatest contribution to the old quantum theory in 1924 when he conceived his correspondence principle for absorption. He demonstrated that in the limit of high quantum numbers there would be a correspondence between absorption by classical multiply periodic systems and by their quantum analogues. His proof depended on interpreting net absorption in the quantum theory as the difference between gross absorption and stimulated emission of radiation an interpretation prompted by a remark of Breit’s. Van Vleck was particularly pleased that his classical theory reproduced the quantum result without the need for stimulated emission which he referred to as "negative absorption." DSB."Van Vleck’s theory of absorption by multiply periodic systems was consistent with the newly derived Kramers theory of dispersion and it convinced Bohr that his correspondence principle applied not only to emission but also to absorption. Further Van Vleck’s 1924 calculation made use of several of the ideas that Werner Heisenberg used in his matrix mechanics a year later. Van Vleck’s work however did not lead in the direction of matrix mechanics. His intent was to explain quantum phenomena especially "negative absorption" in classical terms rather than to devise an internally consistent quantum theory." DSB.In 1977 he shared the Nobel Prize with Philip Anderson and N. F. Mott.Van der Waerden "Sources of Quantum Mechanics" pp. 203 ff. </em> hardcover
197310145US: Commission of the European Communities 1973. First Edition. Paperback. Good/No dust jacket. 9.5 x 6.2 x 1.2 inches. Very Rare book. Former library book with stamps are on the edges of the text block and title page. Library stickers on the front cover and at the tail of the spine. There is light shelf wear and faint creases to the corners. The binding is tight. The interior is clean and unmarked. Electronic delivery tracking will be issued free of charge. Structural mechanics in reactor technology Commission of the European Communities paperback
1928AE-4New York: Ronald Press 1928. Classic text presents a detailed treatment of the fundamentals and performance of aircraft float design including topics covering types of float action; suction effect and step action; ground looping; twin and central float systems; water rudders; operating conditions; hydrovane blades; reserve buoyancy; design procedures; stability and structural considerations; float proportions; model testing; Froude's Law; wing lift; dangerous tip floats; wooden and metal floats; seaplanes versus landplanes; etc. 111 pgs. Illustrated. Pgs. 11 & 13 have a small sealed closed tear on the outer page edge; pg. 15 has a small corner crease. Prior ownership name and nameplate pastedown on front endpapers; small stamp to title page and outer edges; small black label on lower front cover. Gilt spine. Spine edges slightly bumped. Minimal shelfwear. First Edition. Hard Cover. Very Good. 8vo - over 7¾" - 9¾" tall. Ronald Press Hardcover
1911AE-3London England: Macmillan & Co. Ltd 1911. Classic text presents detailed topics dealing with the fundamental principles and problems of stability in aviation including topics covering symmetrical derivatives; graphic statics of longitudinal equilibrium; longitudinal stability of double-lifting systems; asymmetric stability- straight planes and vertical fins; lateral stability- bent up planes; mathematical theories; etc. 192 pgs. Illustrated. Prior ownership name and nameplate pastedown on front endpaper. Minor foxing and slight age discoloration to front and rear endpapers. Gilt spine. Minimal rubbing to corners and spine edges. Scarce. First Edition. Hard Cover. Very Good/ . 8vo - over 7¾" - 9¾" tall. Ex-Professional Library. Macmillan & Co. Ltd Hardcover
192448872Braunschweig, Berlin, Vieweg & Sohn u. Julius Springer, 1924. 8vo. Contemp. hcloth. In: Zeitschrift für Physik"", Bd. 24. IV,412 pp. (Entire volume offered). The paper: pp. 69-87. A stamp on titlepage. Clean and fine.
192646991London, Roayl Society, 1926. Royal 8vo. Full cloth. Gilt lettering to spine. In: ""Proceedings of the Royal Society"". Series A, Vol. 111. V,753,LIII pp., textillustr. and plates. (Entire volume offered).
192448872Braunschweig Berlin Vieweg & Sohn u. Julius Springer 1924. 8vo. Contemp. hcloth. In: Zeitschrift für Physik" Bd. 24. IV412 pp. Entire volume offered. The paper: pp. 69-87. A stamp on titlepage. Clean and fine. <br/><br/><em>First apperance simultaneously printed in Philosophical Magazine of a fundamental paper in the development of the Quantum Theory as it here was set forth three fundamental ideas: 1. Slater's idea of 'a Virtual radiation field' 2. statistical conservation of energy and momentum and 3. statistical independence of the processes of emission and absorption in distant atoms. See Van der Waerden "Sources of Quantum Mechanics" No. 5. </em> hardcover
192646991London Roayl Society 1926. Royal 8vo. Full cloth. Gilt lettering to spine. In: "Proceedings of the Royal Society". Series A Vol. 111. V753LIII pp. textillustr. and plates. Entire volume offered. <br/><br/><em>First appearance of these papers constituting Dirac's own theory of quantum mechanics."Dirac wanted to establish an algebra for quantum variables or as he now termed them q-numbers. He wanted his q-number algebra to be a general and purely mathematical theory that could then be applied to problem of physics. Although it soon turned out that q-number algebra was equivalent to matrix mechanics in 1926 Dirac's theory was developed as an original alternative to both wave mechanics and matric mechanics. It was very much Dirac's own theory and he stuck to it without paying much attention to what went on inmatrix mechanics. In the summer of 1926 Dirac published a new and very general version of q-number algebra this timepresented as a purely mathematical theory. In this paper offered here he did not refer to physics at all. The work had little impact on the physics community but seems to have been appreciated by those who cultivated the mathematical aspects of quantum physics. Most of the results obtained by Dirac in his paper "The Elimination of the Nodes in Quantum Mechanics" had been found earlier by the German theorists using a method of matric mechanics but Dirac was able to improve on some of the results and deduce them from his own system of quantum mechanics."Helge Kragh. </em> hardcover
192748881Berlin, Julius Springer, 1927. 8vo. Contemp. hcloth. Gilt lettering to spine. In: Zeitschrift für Physik, Vol. 44. VIII,903 pp. (Entire volume offered). Heitler & London's paper: pp. 455-472. A stamp to titlepage. Clean.
192748881Berlin Julius Springer 1927. 8vo. Contemp. hcloth. Gilt lettering to spine. In: Zeitschrift für Physik Vol. 44. VIII903 pp. Entire volume offered. Heitler & London's paper: pp. 455-472. A stamp to titlepage. Clean. <br/><br/><em>First appearance of grounbreaking paper which was the first to explain the nature of the chemical bound using wave mechanics and thus explaining the forces active when atoms exchange electrons and creating molecules."In June Heitler and London published their famous paper on the hydrogen molecule in which they showed the existence of a new kind of saturable nondynamic forces the so-called "exchange forces" of attraction or repulsion between like particles and developed a schematic theory of the homopolar valence which eventually BROUGHT THE WHOLE OF CHEMISTRY UNDER THE SOVEREIGNTY OF QUANTUM MECHANICS. These results not only lent weight to the concept of like particles they also showed that like particles may be indistinguishable that is may lose their identity a conclusion which follows from the uncertainty relations or more precisely from the impossibility of keeping track of the individual particles in case of interactions of like particles. Jammer in "The Conceptual Development of Quantum Mechanic" pp. 343 ff.Parkinson "Breakthroughs" 1927 C. </em> hardcover
192847068Berlin, Weidmannsche Buchhandlung, 1928. 8vo. Full cloth, but spine gone. In: ""Nachrichten von der Gesellschaft der Wissenschaften zu Göttingen aus dem Jahre 1927"". (4),469 pp. Von Neumann's papers: pp. 1-57, pp. 245-272 a. pp. 273-291. Internally clean and fine.
192847068Berlin Weidmannsche Buchhandlung 1928. 8vo. Full cloth but spine gone. In: "Nachrichten von der Gesellschaft der Wissenschaften zu Göttingen aus dem Jahre 1927". 4469 pp. Von Neumann's papers: pp. 1-57 pp. 245-272 a. pp. 273-291. Internally clean and fine. <br/><br/><em>First printing of von Neumann's importent papers in which he gave a mathematically precise formulation of the foundation of Quantum MeChanics basing the theory on the use of Hilbert spaces."He von Neumann developed between 1927 and 1929 a new mathematical framework of the theory subsequently proved to be the most suitable formalism of nonrelativistic quantum mechanics as we use it today as well as of its extensions the relativistic quantum mechanics of partcles and the quantum theory of fields."Max Jammer "The Conceptual Development og Quantum Mechanics" pp.314-15"Von Neumann’s most famous work in theoretical physics is his axiomatization of quantum mechanics. When he began work in that field in 1927 the methods used by its founders were hard to formulate in precise mathematical terms; "operator" on "functions" were handled without much consideration of their domain or definition to their topological properties: and it was blithely assumed that such "operators" when self-adjoint could always be "diagonalized" as in th finite dimensional case at the expense of introducing "Dirac functions" as "eigenvectors." Von Neumann showed that mathematical rigor could be restored by taking as basic axioms the assumptions that the states of a physical system were poinds of a Hilbert space and that the measurable quantities were Hermitian generally unbounded operators densely efined in that space. This formalism. the practical use of which became available after von Neumann had developed the spectral theory of unbounded Hermitian operators 1929 has survived subsequent developments of quantum mechanics and is still the basisi of non relativistic quantum theory; with the introduction of the theory of distributions it has even become possible to interpret its results in a way similar to Dirac’s original intuition."DSB. </em> hardcover
192647172Minneapolis, Minn., The Physicalreview, 1926. 4to. Contemp. full buckram. Small tear to first hinge at foot. A stamp in upper right corner on titlepage and 2 other pages. In: ""The Physical Review. Conducted by the American Physical Society"", Vol. 28, Second Series. VI,1343 pp. (Entire volume offered).Schrödinger's paper: pp. 1049-1070. Internally clean and fine.
192647172Minneapolis Minn. The Physicalreview 1926. 4to. Contemp. full buckram. Small tear to first hinge at foot. A stamp in upper right corner on titlepage and 2 other pages. In: "The Physical Review. Conducted by the American Physical Society" Vol. 28 Second Series. VI1343 pp. Entire volume offered.Schrödinger's paper: pp. 1049-1070. Internally clean and fine. <br/><br/><em>First appearance of the first treatment of Wave Mechanics in English.The paper reviews Schrödinger's own wave-mechanics and De Broglie's "phase waves" and covers all the results Schrödinger had hitherto obtained in his main communications of 1926 the 3 papers in German. An English translation of Schrödinger's main papers was not published until 1928."The paper gives an account of the author's work on a new form of quantum theory. §1. The Hamiltonian analogy between mechanics and optics. §2. The analogy is to be extended to include real "physical" or "undulatory" mechanics instead of mere geometrical mechanics. §3. The significance of wave-length; macro-mechanical and micro-mechanical problems. §4. The wave-equation and its application to the hydrogen atom. §5. The intrinsic reason for the appearance of discrete characteristic frequencies. §6. Other problems; intensity of emitted light. §7. The wave-equation derived from a Hamiltonian variation-principle; generalization to an arbitrary conservative system. §8. The wave-function physically means and determines a continuous distribution of electricity in space the fluctuations of which determine the radiation by the laws of ordinary electrodynamics. §9. Non-conservative systems. Theory of dispersion and scattering and of the "transitions" between the "stationary states." §10. The question of relativity and the action of a magnetic field. Incompleteness of that part of the theory." From the Abstract in front of the paper. </em> hardcover
1967ME-75Syracuse N.Y.: Syracuse University Press 1967. Comprehensive three-volume Vol. II & IIA are bound as one volume standard reference set compiled by Syracuse University under USAF contract administered under the direction of the Information Processing Section Materials Information Branch Air Force Materials Laboratory Research & Technology Division Air Force Systems Command Wright- Patterson Air Force Base Ohio. Each volume is self contained in a black vinyl covered heavy-duty 4-post loose-leaf binder. Each volume covers a general discussion of alloys and their properties; physical chemical and mechanical properties; and fabrication. Vol.I contains sections on martensite stainless steels; age hardening steel; nickel chromium steels; austenitic stainless steels; ultra-high strength steels; carbon and low alloy steels. Vol.IIA contains sections on nickel base alloys; cobalt base alloys; beryllium alloys; columbium alloys; molybenum alloys; tantalum alloys; tungsten alloys; vanadium alloys; zirconium alloys. Vol.II contains sections on aluminum alloys: wrought heat treatable AIWT and wrought non-treatable AIWN; magnesium alloys: wrought heat treatable MgWT and wrought non-treatable MgWN; titanium alloys. Alloys are in numerical sequence by alloy code number. Handbook includes data source references; physical chemical and mechanical properties; fabrication; glossary of terms discussion of fracture toughness and a cross reference of the alloys. Tab-indexed pages. Total number of alloy chapters currently contained in this Handbook is 180; 66 in Volume I; 56 in Volume II and 58 in Volume IIA. Over 2000 pgs. Illustrated. Minimal shelfwear. Heavy item. Scarce. Fourth Revised Edition. Looseleaf Binding. Very Good. 4to - over 9¾" - 12" tall. Syracuse University Press unknown
197118601971 Stuttgart, Belser-Presse, 1971. 39,5 x 30 cm, in-folio, 79 pp. - 3 lithographies en couleurs hors texte, cartonnage et étui de l'éditeur en pleine toile bise, pièces de titre.
1961ZB393984Springer 1961. Volumes 1-30. 1961-1990. partly bound library markings textually clean & tight PRICE IS FOR THE LOT. - 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. Springer unknown