Description
Bohr (Niels) On the Constitution of Atoms and Molecules, first edition, 3 author offprints from the Philosophical Magazine, 6th series, vol.26, pp.1-26, 476-502 and 857-875 bound together in contemporary wrappers with presentation inscription from the author to Kasimir Fajans on upper cover, rebacked in cloth, preserved in modern cloth drop-back box with leather book-label of Haven O'More, [PMM 411], 8vo, 1913.
⁂ The birth of modern atomic theory - a rare presentation copy of Bohr's foundational work on the structure of the atom. Building upon the general theory of the Rutherford model and applying Planck's Quantum Theory, Bohr introduced three postulates: 1. An electron can revolve around its nucleus only in certain special orbits; 2. the ordinary electron revolves about its nucleus in an invariable orbit, without radiating or absorbing energy; and 3. radiation takes place when and only when the electron falls from an orbit of greater energy to one of less energy. The theory was first applied to the hydrogen atom which has only one electron revolving around the positive nucleus, but has an indefinite number of allowable orbits that were mechanically possible.
Lot 145
Bohr (Niels) On the Constitution of Atoms and Molecules, first edition, presentation copy, offprint 1913.
Hammer Price: £17,000
Description
Bohr (Niels) On the Constitution of Atoms and Molecules, first edition, 3 author offprints from the Philosophical Magazine, 6th series, vol.26, pp.1-26, 476-502 and 857-875 bound together in contemporary wrappers with presentation inscription from the author to Kasimir Fajans on upper cover, rebacked in cloth, preserved in modern cloth drop-back box with leather book-label of Haven O'More, [PMM 411], 8vo, 1913.
⁂ The birth of modern atomic theory - a rare presentation copy of Bohr's foundational work on the structure of the atom. Building upon the general theory of the Rutherford model and applying Planck's Quantum Theory, Bohr introduced three postulates: 1. An electron can revolve around its nucleus only in certain special orbits; 2. the ordinary electron revolves about its nucleus in an invariable orbit, without radiating or absorbing energy; and 3. radiation takes place when and only when the electron falls from an orbit of greater energy to one of less energy. The theory was first applied to the hydrogen atom which has only one electron revolving around the positive nucleus, but has an indefinite number of allowable orbits that were mechanically possible.