Lancaster, PA., and New York: American Physical Society, 1948; 1949; 1951. First edition, journal issues, documenting the invention of the transistor, “which has been called ‘the most important invention of the 20th Century.’ Developed from semiconductor material, the transistor was the first device that could both amplify an electrical signal..... More
Item #4566

[London: Macmillan, 1939]. First edition, very rare offprint, of this sequel to the paper of Bohr & Kalckar, ‘On the Transmutation of Atomic Nuclei by Impact of Material Particles’, which had introduced the ‘liquid-drop model’ of the nucleus. “Bohr’s ‘droplet model’ of nuclear reactions, refined in various ways since it..... More
Item #5036

Copenhagen: IIe Congrès International de la Lumière, 1932. First edition of this famous lecture, which marks Bohr’s first detailed attempt to apply concepts arising from quantum mechanics (particularly complementarity) to areas outside physics. “Here, for the first time, Bohr raised a question that was to preoccupy him, off and on..... More
Item #3792

Copenhagen: Bianco Lunos, 1918-22. First edition, very rare presentation offprints (with ‘Separate Copy’ printed on the front wrappers), inscribed by Bohr to Kasimir Fajans, and from the collection of The Garden Ltd., of this fundamental work in which Bohr first gave a clear formulation of, and fully utilized, his ‘correspondence..... More
Item #4920

[Lancaster, PA & New York, NY: American Institute of Physics for the American Physical Society, 1939. First edition, extremely rare offprint issue, of arguably Bohr’s most important paper on nuclear fission, the first recognition of the crucial importance played by uranium-235, the only isotope found in nature capable of sustaining..... More
Item #5037

Paris: Gauthier-Villars, 1926; 1928. First edition of these expanded presentations of the ideas in de Broglie’s epoch-making doctoral thesis on the quantum theory, which, Einstein said, “lifted a corner of the great veil” (Isaacson, Einstein: His Life and Universe, p. 327). In that work he developed the startling and revolutionary..... More
Item #4527

London: Harrison & Sons for the Royal Society, 1930. First edition of Dirac’s prediction of anti-matter – although he did not accept it as such until a year later (see below) – and the advent of the dynamical view of the vacuum which was fundamental to the later development of..... More
Item #3519

Leipzig: Barth, 1911. First edition, rare author’s presentation offprint with “Überricht von dem Verfasser” printed on the front wrapper, of Einstein’s second important paper on specific heats (the first was published in 1907). The problem of specific heat – the measure of heat or thermal energy required to increase the..... More
Item #5066

Leipzig: Barth, 1901. First edition, rare author’s presentation offprint with “Überreicht vom Verfasser” printed on front wrapper, of Einstein’s first published paper, on the thermodynamics of liquid surfaces, which Einstein completed in December 1900. In both this and his second published paper (1902), “Einstein was looking for experimental support for..... More
Item #5068

Leipzig: Barth, 1910. First edition, rare author’s presentation offprint with “Überricht von dem Verfasser” printed on the front wrapper, of Einstein’s paper on critical opalescence, his last major paper on classical statistical physics, and one of his most often-cited works. Critical opalescence is a phenomenon that occurs during continuous (second-stage)..... More
Item #5072

Leipzig: Barth, 1906. First edition, rare author’s presentation offprint with “Überreicht vom Verfasser” printed on front wrapper, of Einstein’s second paper on Brownian motion, but the first to acknowledge the relationship of his theory to Brownian motion. “In 1905, Einstein was blissfully unaware of the detailed history of Brownian motion..... More
Item #5067

Lancaster, PA & New York, NY: American Physical Society, 1948. First edition, journal issue in original printed wrappers, and a virtually mint copy, of Feynman’s path-integral formulation of quantum mechanics, a “new formalism for quantum theory (presented in Feynman’s thesis) which … turned out to be the most powerful and..... More
Item #5061

London: Harrison and Sons, 1909. First edition, journal issue in original printed wrappers, of Geiger & Marsden’s famous alpha-particle scattering experiment, which demonstrated for the first time the existence of the atomic nucleus, leading to the downfall of Thomson’s plum-pudding model of the atom, and the development of the Rutherford..... More
Item #3587