‎Ni’ersi Bo’er ji [Chinese, i.e. ""Niels Bohr Collected Works""]. Vols. 1-10 [out of 12]. - [WITH DEDICATION FROM THE TRANSLATOR]‎

‎Shanghai, Huadong shifan daxue chubanshe, 1986 - 2001. 8vo. 10 volumes, all in publisher's uniform full cloth bindings with gilt lettering to spines and front boards. All volumes with presentation inscription from the translator to Niels Bohr's son, Ernest Bohr: ""To Mr. Ernest Bohr with / highest respect from / GeGe"". A fine and clean set of the first 10 volumes of Niels Bohr Collected Works.‎

‎First Chinese, and overall, translation of 'Niels Bohr Collected Works' with dedication inscription from the translator ot Bohr's son Ernest Bohr. Translator Prof. Ge Ge found Bohr’s personality and mode of thinking in harmony with traditional Chinese culture, which may be part of the explanation for his lifelong dedication to Niels Bohr and his work, and his great effort to translate and publish the only non-English edition of the Niels Bohr Collected Works in existence today. The first volume in English had appeared in 1972, and Ge Ge was able to publish a Chinese translation in 1986, fourteen years later.Ge Ge’s enthusiasm not only led to the Collected Works being published with impressive promptness in China, but no doubt provided additional motivation for the Director of the Niels Bohr Archive to prepare the volumes faster. In this way, Ge Ge had an influence even on the publication of the original edition. In 2001 Ge Ge received the prestigeousDanish Order of the Dannebrog “for hiscontribution to increasing the Chinese understanding of Danish science and promoting the Denmark-China scientific cooperation. He was in fact able to translate all the volumes of the Collected Works, the last volume of which was published in English in 2006. It testifies to Ge Ge’s dedication that he enthusiastically went on with the work in spite of having lost his eyesight" he died the following year. The volumes contain the following: Vol. 1: Early Work (1905-1911) Vol. 2: Work on Atomic Physics (1912-1917)Vol. 3: The Correspondence Principle (1918-1923) Vol. 4: The Periodic System (1920-1923)Vol. 5: The Emergence of Quantum Mechanics (mainly 1924-1926) Vol. 6: Foundations of Quantum Physics I (1926-1932) Vol. 7: Foundations of Quantum Physics II (1933-1958) Vol. 8: The Penetration of Charged Particles through Matter (1912-1954)Vol. 9: Nuclear Physics (1929-1952) Vol. 10: Complementarity beyond Physics (1928-1962) ‎

‎Zur Frage der Messbarkeit der elektromagnetischen Feldgrössen.‎

‎København (Copenhagen), Levin & Munksgaard, 1933. Orig. printed wrappers. Backstrip with 2 small nicks and frontcover a bit faded at margins. 65 pp. (Det Kgl. Danske Videnskabernes Selskab, Mathematisk-fysiske Meddelelser XII,8).‎

‎First edition of this fundamental papers in the development of quantum field theory. The process of measuring electromagnetic fields involves the observation of charged test bodies in those fields. Therefore the theory of electrodynamics is an inseparable extension of mechanics. A quantum theory of fields thus inherits, in some form, the limitations of measurement which lie at the foundation of quantum mechanics. In 1931 Landau and Peierls published a critical analysis of the consequences of such limitations in a relativistic quantum theory of fields. Landau and Peierls came to the negative conclusion that in several cases, the concept of momentum was without physical meaning and quantities such as the strength of a field was un-measurable. In their famous paper from 1933 Bohr and Rosenfeld (the work offered) carefully reviewed the arguments of Landau and Peierls and showed, through the use of particular measuring arrangements, that a consistent quantum theory of fields is possible without further limitations than the ones which secure the consistency of quantum mechanics. The BR-paper is often credited with having laid the foundation for quantum electrodynamics. Bohr continued his work in this field, and in 1937 he completed a manuscript entitled ""Field and Charge Measurement in Quantum Theory"", but this was never published. When, in the late 1940s the important work on QED by Tomonaga, Schwinger, Dyson, and Feynman appeared in The Physical Review, Bohr and Rosenfeld again joined and published the essentials of the 1937 manuscript in the same journal.See Abraham Pais: Bohr's Times, pp.358-364. Mehra & Rechenberg: The Historical Development of Quantum Theory, vol. 6, pp.697-703. Collected Works of Niels Bohr, vol. 7, pp.3-33.‎

‎Festskrift til Professor Dr. Niels Bohr. Paa 50 aars dagen d. 7. oktober 1935.‎

‎Kjøbenhavn, J. Jørgensen & Co., 1935. 8vo. In the original printed wrappers, uncut. Offprint from ""Fysisk Tidsskrift"". Frontiespiece of Bohr. Corners a bit bumped and a small tear to upper capital, other fine and clean throughout. Pp. 77-220.‎

‎First printing of this commemoration to Niels Bohr on his 50ies birthday. It consists of the following papers and essays written by Bohr's student and fellow physicians. Kramers H.A. Atom- og kvanteteoriens udvikling 1 aarene 1913-1925.Heisenberg, w. Udviklingen af kvanteteoriens principielle grundlag efter 1925. Klein, O. Den elektriske elementarladning og kvanteteorien. Rosenfeld, L. Kvanteteori og feltfysik. Ambrosen, J. Om neutronen. Bjerge, T. & F. Kalckar. Atomkærnernes egenskaber og opbygning.Bøggild, J.K. Højdestraalingen. Jacobsen, J.C. Absorption af Røntgen- og v-straaler.Langseth, A. Isotopeffekten i molekylspektrene. Madsen, C. B. Isotoper.Møller, C. Om positronteorien.Rasmussen, Ebbe. Spektralliniernes hyperfinstruktur. Rasmussen, R. E. H. Lidt om adsorption, refleksion og energiudveksling ved molekylstød mod faste overflader. Thorsen, V. Den elektriske lysbue. Werner, Sven. Atomernes størrelse.‎

‎The mechanism of nuclear fission [N. Bohr. & J. A. Wheeler] ""On continued gravitational contraction"" [J. R. Oppenheimer & H. Snyder]. - [THE FIRST THEORETICAL DESCRIPTION OF A SINGULARITY]‎

‎Lancaster, American Institute of Physics, 1939. Royal8vo. In the original green printed wrappers. In ""The Physical Review"", Volume 56, Second Series, Number 5, September 1. With cloth back-strip. A quire, affecting both papers, detached but without any loss of paper. A few minor tear throughout, far from affecting text. [Bohr & Wheeler:] Pp. 426-50. [Oppenheimer & Snyder:] Pp. 455-59. [Entire volume: Pp. 387-486].‎

‎First printing of two landmark papers, all of seminal importance in history of physics: The intricacies of the fission process, the groundwork for atomic and hydrogen bombs and the forgotten birth of black holes: The first theoretical description of a black hole, the production of a singularity when a sufficiently large neutron star collapses.Oppenheimer and Snyder's ""ON CONTINUED GRAVITATIONAL CONTRACTION"" constitute the very first theoretical prediction of a singularity when a sufficiently large neutron star collapses. This phenomenon was later to be coined as a black hole. ""Had J. Robert Oppenheimer not led the US effort to build the atomic bomb, he might still have been remembered for figuring out how a black hole could form."" (American Physical Society). The paper has by several physics historians been described as the forgotten birth of black holes. ""Oppenheimer and his graduate student George Volkoff presented the first analysis of the formation of a neutron star in a 1939 Physical Review paper titled, ""On Massive Neutron Stars"". Oppenheimer wondered what would happen to a very massive neutron star. The Schwartzschild analysis of General Relativity has a theoretical limit, called the ""Schwartzschild limit"", when the ratio of mass-to-radius of a star is 236,000 times greater than the ratio for our sun. When this limit is exceeded, the Schwartzschild analysis does not yield a solution. Oppenheimer believed that a neutron star could have sufficient mass to exceed this limit. What would happen to it? Oppenheimer and his graduate student Hartland Snyder applied General Relativity theory to a star with sufficient mass and density to exceed the Schwartzschild limit. The Schwartzschild analysis assumed that the size of the star stays constant with time. Oppenheimer and Snyder found that they could achieve a real solution from General Relativity when the Schwartzschild limit is exceeded by assuming that the diameter of the star decreases with time. They presented their analysis in a 1939 Physical Review paper, titled, ""On Continual Gravitational Contraction,"" which concluded with: ""When all thermonuclear sources of energy are exhausted, a sufficiently heavy star will collapse. Unless fission due to rotation, the radiation of mass, or the blowing off of mass by radiation, reduce the star's mass to the order of that of the sun, this contraction will continue indefinitely."" This analysis concluded that when the Schwartzschild limit is exceeded, the star must collapse indefinitely until it reaches a singularity having an infinite density of matter"" (Bjornson, Singularity Predictions of General Relativity, P. 4).The Chandrasekhar / Eddington controvery in the mid 30ies did discuss the fate of neutron stars but the first thoroughly theoretical desciption was first published here. ""THE MECHANISM OF NUCLEAR FISSION"" is the first fully worked out theory of nuclear fission, which laid the groundwork for atomic and hydrogen bombs.""Wheeler's technical mastery of physics is best seen in the classic paper of Bohr and Wheeler. Bohr and Wheeler wrote the paper in Princeton, where Bohr was visiting in the spring of 1939, a few months after the discovery of fission. The paper is a masterpiece of clear thinking and lucid writing. It reveals, at the center of the mystery of fission, a tiny world where everything can be calculated and everything understood. The tiny world is a nucleus of uranium 236, formed when a neutron is freshly captured by a nucleus of uranium 235. The uranium 236 nucleus sits precisely on the border between classical and quantum physics. Seen from the classical point of view, it is a liquid drop composed of a positively charged fluid. The electrostatic force that is trying to split it apart is balanced by the nuclear surface tension that is holding it together. The energy supplied by the captured neutron causes the drop to oscillate in various normal modes that can be calculated classically. Seen from the quantum point of view, the nucleus is a superposition of a variety of quantum states leading to different final outcomes. The final outcome may be a uranium 235 nucleus with a re-emitted neutron, or a uranium 236 nucleus with an emitted gamma-ray, or a pair of fission-fragment nuclei with one or more free neutrons. Bohr and Wheeler calculate the cross-section for fission of uranium 235 by a slow neutron and get the right answer within a factor of two. Their calculation is a marvelous demonstration of the power of classical mechanics and quantum mechanics working together. By studying this process in detail, they show how the complementary views provided by classical and quantum pictures are both essential to the understanding of nature. Without the combined power of classical and quantum concepts, the intricacies of the fission process could never have been understood. Bohr's notion of complementarity is triumphantly vindicated"" (John Archibald Wheeler, Proceedings of the American Philosophical Society 154 (2010)).‎

‎On the Quantum Theory of Radiation and the Structure of the Atom. (+) On the Decrease of velocity of Swiftly Moving Electrified Particles passing through Matter. (2 papers).‎

‎London, Taylor & Francis, 1915. Contemp. hcalf. Spine gilt, title- and tomelabels with gilt lettering. Spine a bit rubbed, some cracking to hinges, but covers not detached. In: ""The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science"", Vol. XXX, Sixth Series. VIII,824 pp., textillustr. and 18 plates. (Entire volume offered). Bohr's papers: pp. 394-413 and pp. 581-612. A stamp to verso of titlepage. Internally clean and fine.‎

‎First appearance of a landmark paper in which Bohr found experimental support for his energy equation for electron orbits and of stationary states in the work of Franck and Hertz from 1914. Furthermore, Franck and Hertz unwittingly provided an independent confirmation of the concept of stationary state. In 1914 they observed an energy threshold in the electron-stopping power of mercury vapor. This threshold, Bohr explained the following year, corresponded to a transition between the normal state and another (first excited) stationary state of the mercury atom (and not, as Franck and Hertz had originally thought, to the ionization of the atom). The supramechanical stability implied by the assumption of stationary states was now empirically proved to comprehend stability with regard to electron impacts.""Bohr had to frequently revise and refine his atomic model in light of new discoveries. One significant paper ""On the Quantum Theory of Radiation and the Structure of the Atom,"" (the paper offered) added more specific details about atomic states. For example Bohr had earlier made the argument that electrons could jump from one orbit to another as energy was emitted or absorbed. In this paper, he theorezed that an atom possesses stationary states in which energy was neither emitted nor absorbed. Any emission or absorption that did occur, such as might induce an electron ump, would correspond to the transition between two stationary states.""(sparknotes.com).An: the second paper offered. When Bohr had finished his importent paper on the hydrogen atom ""On the Theory of Decrease of Velocity of Moving Electrified Particles on passing through Matter"" 1913, he completed another paper on that subject (the paper offered), which includes the influence of effects due to relativity and to straggling (that is, the fluctuations in energy and in range of individual particles).(Pais p. 128).Rosenfeld no 13 a. 14.The volume contains further importent papers by J.J. THOMSON, W.H. BRAGG, RUTHERFORD & BARNES, SODDY & HITCHINS etc.‎

‎L'Astronomie au XIXème siècle - Tableau des progrès de cette science depuis l'Antiquité jusqu'à nos jours.‎

‎ Paris, Librairie académique Didier et Cie, 1864. Un vol. au format in-12 (188 x 123 mm) de 2 ff. n.fol., 339 pp. + catalogue éditeur in fine. Reliure de l'époque de demi-basane glacée fauve, dos lisse orné de doubles filets dorés, larges fleurons à froid, roulettes à froid, pièce de titre de maroquin ébène, titre doré, tranches mouchetées.‎

‎ Edition originale ; revêtue d'une reliure décorative du temps. Légers frottements affectant le papier marbré des plats. Papier oxydé présentant en outre de claires rousseurs. Du reste, bonne condition. ‎

‎LECONS ET LECTURES DE PHYSIQUE ELEMENTAIRE, TOME II‎

‎Garnier Frères. 1911. In-12. Relié. Etat d'usage, Couv. défraîchie, Dos fané, Quelques rousseurs. 467 pages. Illustré de nombreuses gravures en noir et blanc dans le texte. Une planche dépliable en couleur (Les spectres). Couverture tachée. Pages de garde annotées et se détachant. Tampon (Hommage) en page de titre.. . . . Classification Dewey : 530-Physique‎

‎Conforme aux derniers programmes. EN, Brevets Sup., Classes de Lettres... Classification Dewey : 530-Physique‎

‎Deux réalités, espace et matière dans l'unité du continu‎

‎Félix Alcan , Bibliothèque de Philosophie Contemporaine Malicorne sur Sarthe, 72, Pays de la Loire, France 1936 Book condition, Etat : Bon broché In-8 1 vol. - 187 pages‎

‎ Contents, Chapitres : diverses formes du réel - éther - unité matériel élémentaire - mécanisme du mouvement - conditions du mouvement - champ électromagnétique - gravitation - appendices divers ‎

‎Mécanique Ondes - Cours de physique‎

‎Hermann , Méthodes Malicorne sur Sarthe, 72, Pays de la Loire, France 1968 Book condition, Etat : Bon broché, sous couverture imprimée éditeur argentée grand In-8 1 vol. - 316 pages‎

‎nombreuses figures dans le texte en noir et blanc 1ère édition Contents, Chapitres : Préface - 1. Mécanique des particules : Introduction - Cinématique du point - Changement de repère - Principes de la mécanique classique - Dynamique du point - 2. Champs de force : Champ coulombien - Champ de gravitation - 3. Systèmes de particules : Dynamique générale des systèmes - Dynamique du solide - Systèmes de deux particules - 4. Oscillateur harmonique : Oscillateur non amorti - Amortissement - Oscillations forcées - 5. Propagation des ondes : Phénomènes ondulatoires - Ondes dans un milieu linéaire - Ondes dans l'espace - 6. Optique géométrique : Principes - Instruments - Annexes mathématiques - Constantes, index tres legeres pliures sur la couverture sans gravité, sinon bon état, intérieur frais et propre‎

‎COURS DE PHYSIQUE - MECANIQUE - ONDES / COLLECTION METHODES.‎

‎HERMANN. 1968. In-8. Broché. Etat d'usage, Coins frottés, Dos satisfaisant, Intérieur acceptable. 315 pages - Quelques rousseurs sur les pages de garde - 1er et 2ème plats argentés.. . . . Classification Dewey : 530-Physique‎

‎ Classification Dewey : 530-Physique‎

‎Les quatre faces de la physique : Explications concrètes suivies de notes complémentaires et d'index‎

‎Rieder ,1939, in-12 de 326 pages ,broché ,Bon état , .(1 photo sur mon site https://www.vieuxlivre.fr .Les frais de port pour la France sont offerts à partir de 25 euros d'achat (Mondial relay ). (colissimo suivi +6,90 ).‎

‎L'atome, source d'énergie‎

‎PRESSES DOCUMENTAIRES. 1945. In-12. Broché. Etat d'usage, Couv. défraîchie, Coiffe en pied abîmée, Non coupé. 109 pages. Quelques illustrations en noir et blanc dans le texte. Léger manque sur le dos.. . . . Classification Dewey : 530-Physique‎

‎Les formes d'énergie. Les désintégrations. Les transmutations R, F et S. Les noyaux atomiques et leurs constituants. Classification Dewey : 530-Physique‎

‎Idées nouvelles sur l'électron, les piles, les dynamos, l'alternatif, l'induction, la radio, la télévision, les ultrasons‎

‎Larousse Malicorne sur Sarthe, 72, Pays de la Loire, France 1946 Book condition, Etat : Bon broché, sous couverture imprimée éditeur blanche et verte, illustrée de dessins In-8 1 vol. - 178 pages‎

‎180 figures dans le texte en noir et blanc nouvelle édition Contents, Chapitres : L'électron et ses congénères - Les courants électriques et leurs mesures - Les piles électriques - Les moteurs électriques - Génératrices et transformateurs - Principe de la radiophonie - La photoélectricité, base de la télévision - La piézoélectricité et les ultrasons couverture legerement brunie, avec une petite tache au bas du plat inférieur, intérieur propre, papier un peu jauni, quelques coins supérieurs de pages à peine cornés en fin d'ouvrage, cela reste un bon exemplaire de lecture‎

‎Idées nouvelles sur l'électron, les piles, les dynamos, l'alternatif, l'induction, la radio, la télévision, les ultrasons‎

‎Larousse Malicorne sur Sarthe, 72, Pays de la Loire, France 1942 Book condition, Etat : Bon broché In-8 1 vol. - 178 pages‎

‎180 figures dans le texte nouvelle édition Contents, Chapitres : L'électron et ses congénères - Les courants électriques et leurs mesures - Les piles électriques - Les moteurs électriques - Génératrices et transformateurs - Principe de la radiophonie - La photoélectricité, base de la télévision - La piézoélectricité et les ultrasons couverture legerement frottée par endroits, avec quelques pliures aux coins, papier un peu jauni, sinon bon exemplaire de lecture‎

‎Idées nouvelles sur l'électron,les piles,les dynamos,l'alternatif,l'induction,la radio,la télévision,les ultrasons.‎

‎Larousse. 1934. In-8. Broché. Etat passable, 2ème plat abîmé, Dos abîmé, Papier jauni. 178 pages - nombreuses figures en noir et blanc dans le texte - 1er plat absent - tâches brunes sur le 2ème plat - coiffes absentes - dos partiellement absent.. . . . Classification Dewey : 530-Physique‎

‎ Classification Dewey : 530-Physique‎

‎La Mécanique du visible et de l'invisible.‎

‎LAROUSSE. 1948. In-12. Broché. Etat d'usage, Couv. légèrement passée, Dos abîmé, Intérieur acceptable. 403 pages. Nombreux dessins, schémas et croquis en noir et blanc, dans le texte. Manques sur le dos. Couverture et dos plastifiés.. . . . Classification Dewey : 530-Physique‎

‎Mouvements, Mécanismes et Moteurs. Classification Dewey : 530-Physique‎

‎L'ATOME SOURCE D'ENERGIE‎

‎PRESSES DOCUMENTAIRES-PARIS. 1945. In-8. Broché. Etat d'usage, Plats abîmés, Dos satisfaisant, Intérieur frais. 109 pages. Quelques schémas en noir et blanc dans le texte. Des manques sur la couverture.. . . . Classification Dewey : 530-Physique‎

‎ Classification Dewey : 530-Physique‎

‎L'Atome source d'énergie.‎

‎PRESSES DOCUMENTAIRES, Paris.. 1945. In-12. Broché. Etat passable, Plats abîmés, Dos abîmé, Intérieur frais. 109 pages. Quelques schémas, graphiques et figures en noir et blanc dans le texte et hors-texte. Dos consolidé avec du scotch. Mouillures. en marges.. . . . Classification Dewey : 530-Physique‎

‎ Classification Dewey : 530-Physique‎

‎L'Atome, source d'énergie.‎

‎PRESSES DOCUMENTAIRES. 2ème édition. 1945. In-12. Broché. Etat passable, 1er plat abîmé, Dos abîmé, Intérieur bon état. 109 pages. Quelques dessins en noir et blanc dans le texte. Manques sur le dos et en coiffes. Mors fendus. Déchirures sur le 1er plat détaché.. . . . Classification Dewey : 530-Physique‎

‎ Classification Dewey : 530-Physique‎

‎L'atome source d'énergie.‎

‎Presses documentaires - Paris. 1945. In-8. Broché. Etat passable, Plats abîmés, Dos abîmé, Papier jauni. 109 pages - quelques figures en noir et blanc dans le texte - plats désolidarisés et jaunis - dos absent.. . . . Classification Dewey : 530-Physique‎

‎ Classification Dewey : 530-Physique‎

‎L'atome source d'énergie.‎

‎ P., Presses Documentaires, 1945, in 8° broché, 111 pages ; 34 figures dans le texte. ‎

‎ ...................... Photos sur demande .......................... ‎

‎L ATOMISTIQUE - LES ATOMES ET LES MOLECULES - STRUCTURES ELECTRONIQUES - CAPILLARITE ET OSMOSE - LES COLLOIDES - LA CATALYSE - EXPOSE ELEMENTAIRE AVEC 82 GRAVURES ET UN INDEX - COLLECTION HIPPOCRATE‎

‎EDITIONBS HIPPOCRATE. 1934. In-8. Broché. Etat d'usage, Couv. convenable, Dos plié, Intérieur frais. 136 pages augmentées de nombreuses illustrations en noir et blanc hors textes.. . . . Classification Dewey : 530-Physique‎

‎ Classification Dewey : 530-Physique‎

‎L'ATOMISTIQUE. Les atomes et les molécules. Structures électroniques. Capillarité et osmose. Les colloïdes. La catalyse. Exposé élémentaire avec 82 gravures et un index.‎

‎Paris, Le François, collection Hippocrate, 1934. In-8, broché.‎

‎[7639]‎

‎Les certitudes du hasard. Collection : Que Sais-je?, N°3.‎

‎Paris, Presses Universitaires de France, PUF, 1958. 11 x 17, 127 pp., broché, bon état (couverture défraîchie).‎

‎MATIERE ELECTRICITE RADIATIONS CE QU'IL FAUT CONNAITRE POUR SUIVRE LES PROGRES DE LA PHYSIQUE ACTUELLE / 3E EDITION.‎

‎DELAGRAVE. 1930. In-12. Broché. Etat d'usage, Tâchée, Dos satisfaisant, Intérieur acceptable. 127 pages - quelques figures en noir et blanc dans le texte - coins frottés - tâches brunes sur les plats.. . . . Classification Dewey : 530-Physique‎

‎Bibliothèque des chercheurs et des curieux. Classification Dewey : 530-Physique‎