Leipzig J.A. Barth 1926. 8vo. Bound in three volumes: two uniform contemporary half cloth and one contemporary full cloth. In "Annalen der Physik. Hrsg. von W. Wien und M. Planck. Vierte Folge Bde. 79-81." Band 79 full cloth with gilt lettering to spine library label pasted on to pasted down front free end-paper and library stamp to front free end-paper. Band 8081 half cloth with a copy of the title page pasted on the front boards. White handwritten title to spine and coners bumped. Library cards inserted on pasted down front free end-paper. All three copies internally fine and clean. Schr�dinger's papers: Pp. 361-376; Pp. 489-527; Pp. 734-756 Bd. 79. Pp. 438-490 Bd. 60. Pp. 109-131 Bd. 81. Entire volumes: VII 1 160 pp. 10 plates; VII 1 828 pp. 15 plates; VIII 1172 pp. 11 plates. � First printing and first appearence of these 5 papers which introduces Schr�dinger's wave-equations and explains the stationary states of electrons in Bohr's theory of the atom by way of applying de Broglie's concept of electron waves. These papers are among the most important in modern physics.<br><br>"The intensity of Schr�dingers work on the problem he found the earlier Bohr-Sommerfeld quantum theory unsatisfactory increased as he saw that he was on the track of "a new atomic theory" and it reached a peak during his winter vacation in Arosa. On 27 December 1925 he wrote to Wilhelm Wien editor of the "Annalen der Physik" inMunich that he was very optimistic: "I believe that I can give a vibrating system.thatyields the hydrogen frequency levels as it eigenfrequencies." The frequences of the emitted light rays are then obtained as Schr�dinger observed by establishing the differences of the two eigenfrequencies respectively. "Consequently the way is opened toward a real understanding of Bohr's frequency calculation - it is really a vibration or as the case may be interference process which occurs with the same frequency as the one we observe in the spectroscope. I hope that I will soon be able to report on this subject in a little more detail and in a more comprehensive fashion" Schr�dinger's letter to Wien.The so-called Klein-Gordon equations which Schr�dinger used gives an incorrect description of the relativistic structures Schr�dinger tried to describe. As this equation he tried to use describes particles without spin whereas a a description of electrons requires the Dirac equation."After a brief interruption Schr�dinger took up his method again but this time he treated the electron nonrelativistically. It soon became apparent that he had arrived at a theory that correctly represented a the behavior of the electron to a very good approximation. THE RESULT WAS THE EMERGENCE OF WAVE MECHANICS IN JANUARY 1926. Schr�dinger published the results of his research in a series of four papers in the "Annalen der Physik" bearing the overall title "Quantisierung als Eigenwertproblem." The first installment sent on 26 January and received by Wien the next day contains the first apperarance in the literature of his famous wave equation written out for the hydrogen atom."DSB. <br>In the fifth paper offered Schr�dinger himself shows that there is an essential equivalence of his theory and that of Heisenberg Born and Jordan's. hardcover
New York: John Wiley & Sons 1930. Hard Cover. Good/No Jacket. 372 pp. Binding is tight with moderate rubbing on cover. Owner's name in ink on endpaper. Endpapers are tanned. Text is tight clean and unmarked John Wiley & Sons hardcover
Colloque de Cordoue. Paris. Stock. 1980. Format : 27x21 cms. 494 pages. Broché, couverture illustrée.
Physique - Neuro et psychophysiologie - Psychologie analytique - Philosophie et sciences religieuses - 25 communications de Léon Askénazi, Bohm, Chauchard, Costa de Beauregard, Haman, Humbert, Ikemi, Josephson, Miller, Pribram, Reeves, Shayegan, Solié. Quelques figures dans le texte. Bon état.
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