Proceedings of the Japan Academy, Ser. B, Physical and Biological Sciences
Vol. 92 No. 4 (2016) |
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Review
Sialic acids as link to Japanese scientists
Roland SCHAUER Proc. Jpn. Acad., Ser. B, Vol. 92, 109-120 (2016) [Abstract and Full Text]
Original Article
Nagaoka’s atomic model and hyperfine interactions
Takashi T. INAMURA Proc. Jpn. Acad., Ser. B, Vol. 92, 121-134 (2016) [Abstract and Full Text]
Cover Illustration
Hantaro Nagaoka and evolution of his atomic physics
It is remarkable that N. Bohr (1913) used the same notation as that given by H. Nagaoka (1904) to illustrate the Coulomb potential of the point center of the atom (nucleus in red) with a charge E in order to describe atomic electrons e (in blue). Furthermore, Nagaoka suggested that the orbits of electrons might not lie in the same plane, that is to say, he was considering a spherical system of each atom. In a sense, Bohr quantized Nagaoka’s atomic model. E. Rutherford (1911) successfully described alpha-particle scattering by the atomic nucleus of gold, while assuming the same Coulomb potential. In the illustration, Rutherford’s atom is presented in blue because he assumed that electrons were distributed uniformly within a sphere of radius R. In the article included in this issue (pp. 121-134), Dr. Inamura reveals persuasively that in terms of the Coulomb potential related to the atomic nucleus, models proposed by Nagaoka, Rutherford and Bohr are actually the same, which nobody else has ever noted so far. The N-R-B model stands for the Nagaoka-Rutherford-Bohr atomic model which is here considered to be the most proper naming to present their contributions to the development of modern atomic physics in the early days. Toshimitsu Yamazaki |