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BOHR, Niels (1885-1962). Determination of the Surface-Tension of Water by the Method of Jet Vibration. Offprint from: Philosophical Transactions of the Royal Society of London, 209. London, 1909.
8o. Original printed wrappers (light chipping to edges and spine, expertly repaired).
FIRST EDITION IN ENGLISH AND EXTREMELY RARE AUTHOR'S OFFPRINT OF BOHR'S FIRST SCIENTIFIC PAPER. PRESENTATION COPY, inscribed by Bohr in Danish in faded but mostly legible ink on the front wrapper: "Th. stud. mag. S. Weber Med. Gak. [2 words, illegible] fra Niels Bohr."Bohr's paper, written while he was a 20-year-old student at Copenhagen University, was awarded the top prize in a competition sponsored by the Royal Danish Academy of Sciences and Letters to prove experimentally Lord Rayleigh's 1879 theory that the surface tension of liquids could be determined from the surface vibrations of liquid jets. Bohr "included in his work essential improvements on Rayleigh's theory by taking into account the influence of the liquid's viscosity and of the ambient air, and by extending the earlier theory from infinitesmal to arbitrarily large amplitudes. . . . On 23 February 1907 the Academy notified [Bohr] that he had won its gold medal" (Pais, Niels Bohr's Times [1991], pp. 101-2). The Danish version of this paper represents Bohr's first published work. In 1908 Bohr submitted a modified version to the Royal Society in London, where it was read and published the following year. This was Bohr's only paper to describe experiments performed by himself-the remainder of his extensive scientific career was devoted to theoretical physics.
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FIRST EDITION IN ENGLISH AND EXTREMELY RARE AUTHOR'S OFFPRINT OF BOHR'S FIRST SCIENTIFIC PAPER. PRESENTATION COPY, inscribed by Bohr in Danish in faded but mostly legible ink on the front wrapper: "Th. stud. mag. S. Weber Med. Gak. [2 words, illegible] fra Niels Bohr."Bohr's paper, written while he was a 20-year-old student at Copenhagen University, was awarded the top prize in a competition sponsored by the Royal Danish Academy of Sciences and Letters to prove experimentally Lord Rayleigh's 1879 theory that the surface tension of liquids could be determined from the surface vibrations of liquid jets. Bohr "included in his work essential improvements on Rayleigh's theory by taking into account the influence of the liquid's viscosity and of the ambient air, and by extending the earlier theory from infinitesmal to arbitrarily large amplitudes. . . . On 23 February 1907 the Academy notified [Bohr] that he had won its gold medal" (Pais, Niels Bohr's Times [1991], pp. 101-2). The Danish version of this paper represents Bohr's first published work. In 1908 Bohr submitted a modified version to the Royal Society in London, where it was read and published the following year. This was Bohr's only paper to describe experiments performed by himself-the remainder of his extensive scientific career was devoted to theoretical physics.