‎Physique‎

‎"BOHR, NIELS.‎

‎On the Quantum Theory of Line-Spectra. Part I-II. [Off-print from ""D. Kgl. Danske Vidensk. Selsk. Skrifter"". - [BOHR'S CORRESPONDENCE PRINCIPLE - PRESENTATION-COPIES]‎

‎Copenhagen, Bianco Lunos, 1918. 4to. Both parts uncut and in the original printed wrappers. Wrappers detached and with small nicks and tears to extremities. Internally fine and clean. Part I unopened. 36 pp. + pp. (37) - 100.‎

‎First editions, author's off-prints (with ""Separate Copy"" printed to front wrappers), presentation-copies, of the first two parts of Bohr's seminal work ""On the Quantum Theory of the Line-Spectra"" (which appeared in three parts and which was never finished, the third part of which, published 4 years later, is almost never found in presentation-sets), in which Bohr gave his first clear presentation of his groundbreaking ""correspondence principle"": ""Which would play a pivotal role in the later development of atomic theory and its transformation into quantum mechanics."" (Kragh, Quantum Generations, p. 56). It eventually became a cornerstone in the quantum mechanics formulated by Heisenberg and Schrödinger. ""There was rarely in the history of physics a comprehensive theory which owed so much to one principle as quantum mechanics owed to Bohr's correspondence principle"" (Jammer 1966, p. 118). The evolution of quantum theory is divided into two distinct periods"" from 1900 to 1925, usually referred to as the period with the old quantum theory still grounded in classical physics and the second period with quantum mechanics from 1925 onwards. The general rules of quantum mechanics are very successful in describing objects on an atomic level. But macroscopic systems are accurately described by classical theories like classical mechanics and classical electrodynamics. If quantum mechanics were to be applicable to macroscopic objects, there must be some limit in which quantum mechanics reduces to classical mechanics. Bohr's correspondence principle demands that classical physics and quantum physics give the same answer when the systems become large. ""A major tool he developed for dealing with quantum problem, [...], was the correspondence principle, which establishes links between predictions of the classical theory and expectations for the quantum theory."" (Pais, Niels Bohr's Times, p. 20.). In this sense, the correspondence principle is not only an exceedingly important methodological principle, it also represents the transition to quantum mechanics and modern physics in general and it became the cornerstone of Bohr's philosophical interpretation of quantum mechanics which later would be closely tied to his thesis of complementarity and to the Copenhagen interpretation. Another version of the correspondence principle lives on in philosophical literature where it has taken form as a more general concept representing a development of new scientific theories.""By 1918 Bohr had visualized, at least in outline, the whole theory of atomic phenomena. ... He of course realized that he was still very far from a logically consistent framework wide enough to incorporate both the quantum postulates and those aspects of classical mechanics and electrodynamics that seemed to retain some validity. Nevertheless, he at once started writing up a synthetic exposition of his arguments and of all the evidence upon which they could have any bearing" in testing how well he could summarize what was known, he found occasion to check the soundness of his ideas and to improve their formulation. In the present case, however, he could hardly keep pace with the growth of the subject the paper he had in mind at the beginning developed into a four-part treatise, 'On the Theory of Line Spectra', publication of which dragged over four years without being completed" the first three parts appeared between 1918 and 1922 [of which the two first from 1918 are offered here], and the fourth, unfortunately, was never published. Thus, the full impact of Bohr's view remained confined to the small but brilliant circle of his disciples, who indeed managed better than their master to make them more widely known by the prompter publication of their own results"" (D.S.B. II: 246-47).Inscribed to ""Hr. Docent D. la Cour/ Venskabeligst/ fra/ Forfatteren"" on both front wrappers. The renowned Danish physicist and meteorologist Dan la Cour (1876-1942), was the son of the great Poul la Cour (1846-1908), who is considered the ""Danish Edison"". Dan la Cour was the assistant of Niels Bohr's father, Christian Bohr, and a well known scientist. From 1903, he was head of the department of the Meteorological Institute, and from 1923 leader thereof. From 1908 he was Associate Professor at the Polytechnic College. His original scientific works are highly respected, as are his original apparati for measuring earth magnetism which are considered highly valuable. ""His original intelligence, which in many ways resemble that of his father, also bore fruit in his patenting of various inventions: the ""Pyknoprobe"", developed to quickly determine the different layers of the sea"" a use of termite in quickly heating food and drinks out in the open under unfavourable weather conditions."" (From the Danish Encyclopaedia - own translation). He wrote a number of important and esteemed works and was member of the Danish Scientific Academy as well as many prominent international scientific commissions of meteorology and geophysics (i.e. president of the International Geodetical and Geophysical Union). He was also honorary Doctor at the George Washington University. Rosenfeld, Bohr-Bibliography, 15.‎

Référence libraire : 46542

‎"BOHR, NIELS.‎

‎On the Quantum Theory of Line-Spectra. Part II, On the Hydrogen Spectrum. - [AUTHOR'S OFFPRINT - PRESENTATION-COPY]‎

‎Copenhagen, Bianco Lunos, 1918. 4to. Original printed wrappers. Lower right corner of front wrapper bent. Small closed tear to front wrapper. Spine strip renewed. Otherwise fine and clean throughtout.‎

‎First printing of the second part of Bohr's seminal work ""On the Quantum Theory of the Line-Spectra"" (which appeared in three parts and which was never finished), author's off-print (with ""Separate copy"" printed on front wrapper), presentation-copy, inscribed by Bohr: ""Hr. Professor K. Prytz / med venlig Hilsen / fra Forfatteren"".""By 1918 Bohr had visualized, at least in outline, the whole theory of atomic phenomena. ... He of course realized that he was still very far from a logically consistent framework wide enough to incorporate both the quantum postulates and those aspects of classical mechanics and electrodynamics that seemed to retain some validity. Nevertheless, he at once started writing up a synthetic exposition of his arguments and of all the evidence upon which they could have any bearing" in testing how well he could summarize what was known, he found occasion to check the soundness of his ideas and to improve their formulation. In the present case, however, he could hardly keep pace with the growth of the subject the paper he had in mind at the beginning developed into a four-part treatise, 'On the Theory of Line Spectra', publication of which dragged over four years without being completed" the first three parts appeared between 1918 and 1922 [of which the second from 1918 is offered here], and the fourth, unfortunately, was never published. Thus, the full impact of Bohr's view remained confined to the small but brilliant circle of his disciples, who indeed managed better than their master to make them more widely known by the prompter publication of their own results"" (D.S.B. 2: 246-47).The present second part deals with the hydrogen spectrum, whereas the first part dealt with the general theory, and the third with the spectra of elements of higher atomic structure. Peter Kristian Prytz (1851-1929), to whom the work is inscribed, was an important physicist of the generation before Bohr. He did immense work to better the conditions of the teaching of physics at the Polytechnic Institute in Copenhagen, where Bohr studied for many years and where he later became a teacher. Prytz introduced the teaching of experimental physics here and fought for more space, more apparatus, more money for teaching assistance and more time for teaching. Thus, he played a great role in the physics-environment in Copenhagen both during Bohr's years as a student and as a teacher.Most importantly, it was Prytz who (in 1907) attracted the necessary money for the institute which enabled him to create the physical laboratory that constituted the foundation of Danish experimental physics, the field of which Bohr became professor in 1916 (till 1920 - the years during which he was working on the ""On the Quantum Theory of the Line Spectra"").Rosenfeld, Bohr-Bibliography, 15.‎

Référence libraire : 35773

‎"BOHR, NIELS.‎

‎On the Theory of Decrease of Velocity of Moving Electrified Particles on passing through Matter - [THE FOUNDATION OF BOHR'S ATOMIC THEORY]‎

‎London, Taylor & Francis, 1913. 8vo. Bound in one nice contemporary half calf binding with gilt leather title-label to spine. Published in ""The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science"", Vol. 25. No. 145-150 offered. Small repair to spine and blind stamped to lower part of title page. The Bohr papers: pp. 10-31. [Entire volume: VIII, 876 pp.+ 10 plates].‎

‎Bohr's seminal first work on nuclear physics, being the work that lays the foundation for his atomic theory (published before his ""On the Constitution of Atoms and Molecules""), in which he is able to conclude ""that a hydrogen atom contains only 1 electron outside the positively charged nucleus, and that a helium atom only contains 2 electrons outside the nucleus ."" ""Bohr's 1913 paper on alpha-particles [i.e. the present], which he had begun in Manchester, and which had led him to the question of atomic structure, marks the transition to his great work, also of 1913, on that same problem. While still in Manchester, he had already begun an early sketch of those entirely new ideas."" (Pais, p. 128). The present work must be considered one of the most important to the birth of modern atomic theory.After finishing his studies in Copenhagen, Bohr went to Cambridge in order to pursue his studies on electron theory under the guidance of J.J. Thompson. Thompson, who was beginning to lose interest in the subject by now, did, however, not recognize the genious of the young Bohr, and as soon as he could, Bohr went to Manchester, where Ernest Rutherford had established a laboratory. ""There, from March to July 1912, working with utmost concentration, he [i.e. Bohr] laid the foundation for his greatest achievements in physics, the theory of the atomic constitution."" (DSB). Bohr's survey of the implications of Rutherford's atomic model had led him to attack the much harder problem which lay at the core of it, namely determining the exact nature of the relation between the atomic number and the number of electrons in the atom. ""Bohr obtained a much deeper insight into the problem by a brilliant piece of work, which he - working, as he said, ""day and night"" - completed with astonishing speed"" (DSB), that paper being the present ""On the Theory of the Decrease of Velocity of Moving electrified Particles on passing through Matter"", which thus constitutes his very first publication on the subject, published immediately after this dense period of 1912, in the Philosophical Magazine of January 1913. ""The problem was one of immediate interest for Rutherford's laboratory: in their passage through a material medium, alpha particles continually lose energy by ionizing the atoms they encounter, at a rate depending on their velocity. Their energy loss limits the depth to which the particles can penetrate into the medium, and the relation between this depth, or range, and the velocity offers a way of determining this velocity. What Bohr did was to analyze the ionizing process on the basis of the Rutherford model of the atom and thus express the rate of energy loss in terms of the velocity by a much more accurate formula than had so far been achieved-a formula, in fact, to which modern quantum mechanics adds only nonessential refinements"" (DSB). In the present work, Bohr was thus able to conclude: ""In this paper the theory of the decrease of velocity of moving electrified particles in passing through matter is given in a form, such that the rate of the decrease in the velocity depends on the frequency of vibration of the electrons in the atoms of the absorbing material."" as well as the seminal words that have been formative for the birth of the modern atomic theory: ""Adopting Prof. Rutherford's theory of the constitution of atoms, it seems that it can be concluded with great certainty, from the absorption of alpha-rays, that a hydrogen atom contains only 1 electron outside the positively charged nucleus, and that a helium atom only contains 2 electrons outside the nucleus "". Bohr continues: ""These questions and some further information about the constitution of atoms which may be got from experiments on the absorption of alpha-rays, will be discussed in more detail in a later paper."" (pp. 30-31 of the original paper) - the last sentence referring directly to his three part ""On the Constitution of Atoms and Molecules"", in which he went on to present his postulates of the orbital structure of the electrons and their quantized radiation. Rosenfeld, Bohr Bibliography No. 5. Rosenfeld, Dictionary of Scientific Biography II, pp. 240-41. Pais, Niels Bohr's Times, pp. 117-31.‎

Référence libraire : 51729

‎"BOHR, NIELS.‎

‎Original photography.‎

‎""Geneva / 12-15. Februar 1952"". 17 x 11,7 cm. A stamp on the back stating: ""Copyright / URS G. ARNI / REPORTER-PHOTOGRAPHIE / 15, R. CHARLES-GIRON TÉL 2.37.55 / GENÈVE"". In pencil: ""Nils Bohr / atomphysikkonferens / Geneva / 12-15. Februari 1952"". The photo depicts an elderly Bohr with a briefcase under his arm in white shirt, tie and three piece suit.‎

‎The picture shows Bohr participating in what would become one of the most important physic conferences in the second half of the 20th century. Here CERN, the European Organization for Nuclear Research, was established. Niels Bohr had been one of the central figures in the development of atomic theory in the early 20th century and was the father to the exceedingly important Copenhagen Interpretation. These merits made him the head of the theoretical division of CERN which was located in Copenhagen. ""In Geneva the representatives of 12 European governments signed the convention setting up the interim organization, which came into being on 15 February 1952 with the title of ""European Council for Nuclear Research"", called ""CERN"" for short after the initials of the French title. Belgium, Denmark, France, the German Federal Republic, Greece, Italy, the Netherlands, Norway, Sweden, Switzerland and Yugoslavia were then provisionally united to carry out nuclear research. During the whole lifetime of the interim CERN, the United Kingdom remained simply an observer, although the interest shown in the project by that country soon took the shape of new ideas, the provision of consultants and gifts."" (CERN COURIER).‎

Référence libraire : 45018

‎"BOHR, NIELS.‎

‎Physical Science and the Study of religions.‎

‎(Copenhagen), Munksgaard, 1953. Royal8vo. In orig. printed wrappers. Offprint from ""Studia Orientalia Ioanni Pedersen septuagenario""., pp. 385-390.‎

‎First edition. - Rosenfeld: 95.‎

Référence libraire : 40451

‎"BOHR, NIELS.‎

‎The quantum postulate and the recent development of atomic theory. - [COINING THE TERM 'COMPLEMENTARITY']‎

‎London, Macmillan and Co., 1928. Royal8vo. In recent full blue cloth with gilt lettering to spine. Extracted from ""Nature"", January - June, 1928, Vol. 121. Entire April 14-issue offered. Fine and clean. [Bohr:] Pp. 580-90. [Entire issue:] Pp. 561-608.‎

‎First edition of Bohr's exceedingly influential statement of his 'complementarity' principle, the basis of what became known as the 'Copenhagen interpretation' of quantum mechanics. In the paper he coined the term 'complementarity' and thereby created an entire new fundamental principle of quantum mechanics.""Immediately after Heisenberg's work on uncertainty relations, Bohr presented his concept of complementarity at a conference a Lake Como in Italy. Bohr's lecture marked the first attempt to provide a genuine philosophical underpinning to the new advances in physics. The uncertainty relations had provided Bohr a concrete measure of the consequences of the wave-particle duality and thereby a physics-based justification for the ideas he was working on. Bohr had already embraced the wave-particle duality underlying quantum theory and he presented the concept of complementarity as the fundamental feature of a new conceptual framework broad enough to include it"" (Paul McEvoy, Niels Bohr). ""For Bohr, complementarity was an almost religious belief that the paradoxes of the quantum world must be accepted as fundamental, not to be 'solved' or trivialized by attempts to find out 'what's really going on down there.' Bohr used the word in an unusual way: the 'complementarity' of waves and particles, for example (or of position and momentum), meant that when one existed fully, its complement did not exist at all"" (Louisa Gilder, The Age of Entanglement). ""The lecture was published in Nature in 1928 in a revised form It sparked significant debate in the years that followed and solidified the boundaries between those who accepted Bohr's view of the consequences of quantum theory and those who were seeking a more 'realistic' microscopic theory or a more realistic interpretation of quantum theory itself"" (McEvoy, P. 70).The paper was published almost simultaneously in English, Danish, English, French and German, the present English publication being the first.‎

Référence libraire : 57204

‎"BOHR, NIELS.‎

‎Zur Frage der Polarisation der Strahlung in der Quantentheorie. - [TOWARDS QUANTUM THEORY]‎

‎Braunschweig und Berlin, Vieweg & Sohn, Julius Springer, 1921. Contemp. hcloth. Stamp on titlepage. In ""Zeitschrift für Physik. Hrasg. von Karl Scheel"", vol. 6., IV,416 pp. Bohr's paper: pp. 1-9. A faint dampstain in right margin.‎

‎First edition. ""...in the hands of Bohr and his school the correspondence principle was like ""a magic wand that allowed the results of the classical wave theory to be of use for the quantum theory...but a costly price had to be paid. For taking resort to classical physics in order to establish quantum-theoretic predictions, or in other words, constructing a theory whose corroboration depends on premises which conflict with the substance of the theory, is of course a serious inconsistency from the logical point of view. Being fully aware of this difficulty, Bohr attempted repeatedly to show ""the correspondence principle must be regarded purely as a law of quantum theory, which can in no way diminish the contrast between the postulates and electrodynamic theory."" The earliest allusion to such a conception may perhaps be found as early as 1921 in a paper (the paper offered) in which Bohr briefly discussed the function of the principle...""(Max Jammer).‎

Référence libraire : 39202

‎"BOHR, NIELS.‎

‎Zur Frage der Polarisation der Strahlung in der Quantentheorie. - [TOWARDS QUANTUM THEORY - THE CORRESPONDENCE PRINCIPLE]‎

‎Braunschweig und Berlin, Vieweg & Sohn, Julius Springer, 1921. 8vo. Bound in contemporary half cloth. Crossed out stamp on title-page. In ""Zeitschrift für Physik. Hrasg. von Karl Scheel"", vol. 6. Entire volume offered. [Bohr's paper:] pp. 1-9. [Entire volume: IV, 416 pp].‎

‎First edition of this seminal contribution to the correspondence principle. ""...in the hands of Bohr and his school the correspondence principle was like ""a magic wand that allowed the results of the classical wave theory to be of use for the quantum theory...but a costly price had to be paid. For taking resort to classical physics in order to establish quantum-theoretic predictions, or in other words, constructing a theory whose corroboration depends on premises which conflict with the substance of the theory, is of course a serious inconsistency from the logical point of view. Being fully aware of this difficulty, Bohr attempted repeatedly to show ""the correspondence principle must be regarded purely as a law of quantum theory, which can in no way diminish the contrast between the postulates and electrodynamic theory."" The earliest allusion to such a conception may perhaps be found as early as 1921 in a paper (the paper offered) in which Bohr briefly discussed the function of the principle...""(Jammer).The volume contains paper by famous phycisists such as E. Brody, H. Pauli, M. Born, W. Pauli Jr. and many others.‎

Référence libraire : 48925

‎"BOHR, NIELS.‎

‎Zur Frage der Polarisation der Strahlung in der Quantentheorie. - [TOWARDS QUANTUM THEORY - THE CORRESPONDENCE PRINCIPLE]‎

‎Braunschweig und Berlin, Vieweg & Sohn, Julius Springer, 1921. 8vo. Bound in Contemporary half cloth. Stamp on title-page. In ""Zeitschrift für Physik. Hrasg. von Karl Scheel"", vol. 6. [Bohr's paper:] pp. 1-9. [Entire volume: IV, 416 pp].‎

‎"BOHR, NIELS.‎

‎Über den Bau der Atome. Mit 9 Abbildungen.‎

‎Berlin, Julius Springer, 1924. Uncut in orig. printed wrappers. 60 pp.‎

‎First German edition of Bohr's Nobel Prize Lecture. It is translated by W. Pauli Jr. after the Danish original ""Om Atomernes Bygning, Nobelforedrag."" - Rosenfeld No 26.‎

Référence libraire : 40623

‎"BOHR, NIELS.‎

‎Über die Anwendung der Quantentheorie auf den Atombau. I. Die Grundpostulate der Quantentheorie. - [TOWARDS QUANTUM THEORY]‎

‎Braunschweig u. Berlin, Vieweg & Sohn, Julius Springer, 1923. Contemp. hcloth. A nick in middle of spine, otherwise fine. Stamp on titlepage. In ""Zeitschrift für Physik. Hrsg. von Karl Scheel"", BD. 13. IV,406 pp. Bohr's paper: pp. 117-165.‎

‎First edition. As Bohr in his 1918 paper (The quantum theory of line spectra) had discussed the expectation that there was a necessary connection between the classical and the future theory in the limit of large quantum numbers, and in a later paper (1920) named it ""Korrespondenzprincip"" (Principle of Correspondance), Bohr now in the paper offered discussed again the fundamental principles of Quantum Theory in connection with the Principle of Correspondence.Rosenfeld No 29.‎

Référence libraire : 39200

‎"BOHR, NIELS.‎

‎Über die Anwendung der Quantentheorie auf den Atombau. I. Die Grundpostulate der Quantentheorie. - [TOWARDS QUANTUM THEORY]‎

‎Braunschweig u. Berlin, Vieweg & Sohn, Julius Springer, 1923. Contemp. hcloth. A nick in middle of spine, otherwise fine. Stamp on titlepage. In ""Zeitschrift für Physik. Hrsg. von Karl Scheel"", BD. 13. IV,406 pp. Bohr's paper: pp. 117-165.‎

‎"BOHR, NIELS. & LÉON ROSENFELD. + LEV LANDAU & RUDOLF PEIERLS.‎

‎[Three papers] 1. Zur Frage der Messbarkeit der elektomagnetischen Feldgrössen. + 2. Erweiterung des Unbestimmtheitsprinzips für die relativistische Quantentheorie. + 3. Field and Charge Measurements in Quantum Electrodynamics. - [QUANTUM FIELD THEORY]‎

‎Copenhagen, Levin & Munksgaard, 1933. + Berlin, Springer 1931. + Lancaster, American Physical Society, 1950. First paper: Published as no. 8 of vol. 12 in 'Kgl. Dankse Vid. Selsk. Math.-Fys. Medd.'. 8vo. Original printed wrappers. With the ownership signature of Danish physicist Mogens Pihl (Prof. of physics at Copenhagen University 1957-77). 65,(1) pp. Second paper: Published in 'Zeitschrift für Physik', vol. 69, pp.56-69. The entire volume in contemporary half cloth offered here.Third paper: Published in 'The Physical Review', vol. 78, no. 6, pp.794-798. The entire issue in original printed wrappers offered here. With rubber stamp of Danish physicist Christian Møller (Author of ""The Theory of Relativity, 1952"").‎

‎First editions of these 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 (second paper offered). 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 (first paper 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 (third paper offered).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.‎

Référence libraire : 35750

‎"BOHR, NIELS. - [VARIOUS AUTHORS, SEE BELOW].‎

‎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.‎

Référence libraire : 45477

‎"BOHR, NIELS. - TOWARDS QUANTUM THEORY.‎

‎Über die Anwendung der Quantentheorie auf den Atombau. I. Die Grundpostulate der Quantentheorie.‎

‎Braunschweig u. Berlin, Vieweg & Sohn, Julius Springer, 1923. Contemp. hcloth. . Stamp on titlepage. In ""Zeitschrift für Physik. Hrsg. von Karl Scheel"", Bd. 13. IV,406 pp. Bohr's paper: pp. 117-165. Clean and fine.‎

‎First edition. As Bohr in his 1918 paper (The quantum theory of line spectra) had discussed the expectation that there was a necessary connection between the classical and the future theory in the limit of large quantum numbers, and in a later paper (1920) named it ""Korrespondenzprincip"" (Principle of Correspondance), Bohr now in the paper offered discussed again the fundamental principles of Quantum Theory in connection with the Principle of Correspondence.Rosenfeld No 29.‎

Référence libraire : 48873

‎"BOHR, NIELS. [translator:] PROFESSOR GE GE.‎

‎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)‎

Référence libraire : 57925

‎"BOLTZMANN, L.‎

‎Ueber die Möglichkeit der Begründung einer kinetischen Gastheorie auf anziehende Kräfte allein.‎

‎Leipzig, Ambrosius Barth, 1885. 8vo. Bound in contemporary half cloth with title label pasted on to spine. In ""Annalen der Physik und Chemie"", band 14, 1885. Entire volume offered. Front wrapper with names written in contemporary hand pasted on to front board. Front hindge a bit weak and stamp to title-page, otherwise fine. Pp. 37-44. [Entire volume: VII, (1), 680 pp. + 12 plates].‎

‎First appearance of Bolzmann's important paper in which he anticipated many of his ideas presented in his ""Vorlesungen über Gastheorie"" (1896).‎

Référence libraire : 50983

‎"BOLTZMANN, LUDWIG.‎

‎Weitere Bemerkungen über einige Probleme der mechanischen Wärmetheorie.‎

‎Wien, Karl Gerold's Sohn, 1879. 8vo. Uncut and unopened in orig. printed wrappers. In: ""Sitzungsberichte der kaiserlichen Akademie der Wissenschaften"", 78. Band, 1. Heft - Juni. (Jahrgang 1878). 258 pp., 4 plates. (Entire issue offered). Boltzmann's paper: pp. 7-46.‎

‎First apppearance of one of Boltzmann's importent papers on statistical mechanics and the second thermodynamic law.""Boltzmann's work on the kinetic theory of gases was done independently of Maxwell and they share the credit. Boltzmann increased the rigor of the mathematical treatment and emphasized the statistical interpretation of the second law."" (Asimov).‎

Référence libraire : 48167

‎"BOLTZMANN, LUDWIG.‎

‎Zur Priorität der Auffindung der Beziehung zwischen dem zweiten Hauptsatze der mechanichen Wärmetheorie und dem Principe der kleinsten Wirkung.‎

‎Leipzig, Johann Ambrosius Barth, 1871. Without wrappers. In ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Bd. 143, No 6. Pp. 161-336 a. 1 plate. Boltzmann's paper: pp. 211-230. With titlepage to volume 143.‎

‎First printing of Boltzmann's paper in which he argues that he was the first, (and four years before Clausius) to infer the Second Law of Thermodynamics from analytical mechanics. He discusses his paper from 1866 ""Über die mechanische Bedeutung des Zweiten Hauptsatzes der Wärmetheorie"" and compares it with Clausius paper from 1870 ""Zurüchführung d. zweiten Hauptsatzes d. mechanichen Wärmetheorie auf allgemeine mechaniche Principien"".‎

Référence libraire : 45077

‎"BOLTZMANN, LUDWIG.‎

‎Zur Theorie der Gasreibung. (1.-) 3. Theil. (+) Über einige das Wärmegleichgewicht betreffende Sätze.‎

‎Wien, Karl Gerold's Sohn, 1880-82. 8vo. Uncut and unopened in orig. printed wrappers. In: ""Sitzungsberichte der kaiserlichen Akademie der Wissenschaften"", 81. Band, 1. Heft - Jänner. (Jahrgang 1880) + 84. Bd. , 1. Heft - Juni. (Jahrgang 1881). + 84. Bd. - December. (Jahrgang 1881). 221 pp. and 438 pp. a. 17 plates and pp. VIII,(933-) 1335. (3 entire issues offered). Boltzmann's papers: pp. 117-158, pp. 40-135 and pp. 136-145.‎

‎First apperance of Boltzmann's large work to determine the transport properties of gases.‎

Référence libraire : 48166

‎"BOLTZMANN, LUDWIG.‎

‎Über die Beziehung der Diffusionsphänomene zum zweiten Hauptsatz der mechanichen Wärmetheorie.‎

‎Wien, Karl Gerold's Sohn, 1879. 8vo. Uncut and unopened in orig. printed wrappers. In: ""Sitzungsberichte der kaiserlichen Akademie der Wissenschaften"", 78. Band, 3. Heft - October. (Jahrgang 1878). Pp. (587-) 895. Boltzmann's paper: pp. 733-763.‎

‎First apppearance of one of Boltzmann's importent papers on statistical mechanics and the second thermodynamic law.""Boltzmann's work on the kinetic theory of gases was done independently of Maxwell and they share the credit. Boltzmann increased the rigor of the mathematical treatment and emphasized the statistical interpretation of the second law."" (Asimov).‎

Référence libraire : 48168

‎"BOLTZMANN, LUDWIG.‎

‎Über einige Probleme der Theorie der elastischen Nachwirkung und über eine neue Methode, Schwingungen mittels Spiegelablesung zu beobachten, ohne den schwingenden Körper mit einem Spiegel von erheblicher Masse zu belasten.‎

‎Wien, Karl Gerold's Sohn, 1878. 8vo. Uncut and unopened in orig. printed wrappers. In: ""Sitzungsberichte der kaiserlichen Akademie der Wissenschaften"", 76. Band, 5. Heft - December. (Jahrgang 1877). Pp. VIII, (747-) 962 a. 1 folded plate. (Entire issue offered). Boltzmann's paper: pp. 815-842.‎

‎First appearance of this paper which is a follow-up on his famous paper ""Zur Theorie der elastischen Nachwirkung"" published 1874.‎

Référence libraire : 48165

‎"BOLTZMANN, LUDWIG. - THE PRESSURE OF RADIATION.‎

‎Ueber eine von Hrn. Bartoli entdeckte Beziehung der Wärmestrahlung zum zweiten Hauptsatze. (+) Ueber das Arbeitsquantums. welches bei chemischen Verbindungen gewonnen werden kann: (Aus...der Sitzungsberichte de k. Akad. der Wiss. zu Wien).‎

‎Leipzig, Johann Ambrosius Barth, 1884. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 22, 5. Heft (= No 5). Pp. 1-144 a. 1 folded plate. (entire issue offered). Boltzmann's papers: pp. 31-39 a. pp. 39-72‎

‎First appearance of an importent paper in which Boltzmann followed up his theoretically confirmation of Stefan's experimental findings - the ""Stefan-Boltzmann law"" - by combining the Second Law of Thermodynamics with the theory of the pressure of radiation.‎

Référence libraire : 44837

‎"BOLTZMANN, LUDWIG. - THE STEFAN-BOLTZMANN LAW - BLACKBODY RADIATION‎

‎Ableitung des Stefan'schen Gesetzes, betreffend die Abhängigkeit der Warmestrahlung von der Temperatur aus der electromagnetischen Lichttheorie.‎

‎Leipzig, Johann Ambrosius Barth, 1884. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 22, 6. Heft (= No 6). Titlepage to vol. 22. Pp. 145-304 (entire issue offered ""Heft"" 6). Boltzmann's paper: pp. 291-294. Small stamp to titlepage and verso of.‎

‎"BORN, M (+) W. HEISENBERG.‎

‎Über den Einfluß der Deformierbarkeit der Ionen auf optische und chemische Konstanten. I.‎

‎Braunschweig und Berlin, Vieweg & Sohn, Julius Springer, 1924. 8vo. In comtemporary half cloth with gilt lettering to spine. In ""Zeitschrift für Physik"", Band 23. Entire issue offered. Stamp to titel page. Otherwise a fine and clean copy. Pp. 388-410. [Entire volume: IV, 417, (1) pp.].‎