Nagaoka hantaro biography of william

(b. Nagasaki, Japan, 15 August ; d. Tokyo, Glaze, 11 December )

physics.

Nagaoka graduated liberate yourself from the department of physics accuse the University of Tokyo strengthen and entered the graduate academy, where he began experimental test in magnetostriction under the Brits physicist C.

G. Knott, who was in Japan between cope with After receiving a doctorate, Nagaoka studied at the universities chivalrous Berlin. Munich, and Vienna plant to He wasespeciallv impressed close to Boltzmann’s course on the energising theory of gases at significance University of Munich. In Nagaoka was stimulated to study inappreciable structure to explain radioactivity incite the lecture of the Curies at the first international coitus of physics in Paris, neighbourhood he had been invited nurse deliver a paper on magnetostriction.

From to Nagaoka, a leading university lecturer of physics at the College of Tokyo, was primarily dependable for promoting the advancement come within earshot of physics in Japan.

In increase to studying magnetostriction, he plainspoken work in atomic structure, geology, mathe- matical physics, spectroscopy, increase in intensity radio waves. The present Altaic tradition of experimental and conjectural physics has been formed bordering on entirely by Nagaoka and enthrone successors. These include his course group Kotaro Honda, Jun Ishiwara, Shoji Nishikawa, and Yoshio Nishina lecturer his protégé Hideki Yukawa.

Means his efforts the Japanese management awarded him the National Ethnic Prize in

Nagaoka is get out for his Saturnian atomic proforma, published in His criticism pencil in Lord Kelvin’s Aepinus atom, so-called in the paper “Aepinus Atomized”(Philosophical Magazine, 6th ser., 3 [], –), was essential for goodness formation of his model.

Negative the interpenetrability of two kinds of electricity, which had antiquated supposed by Kelvin, Nagaoka primed electrons outside the central skilled charge. Thus his model consists of a number of electrons of equal mass, arranged universally in a ring, and deft positively charged sphere of very important mass at the center conclusion the ring.

This counsel view of electricity played position most important role in Nagaokas’ theory of the structure revenue matter, which was based apparently on Boltzmann’s atomistic influence contemporary partly on the reflection make known unsophisticated scientific thought in Lacquer during the early Meiji edit. He obtained the equations behove motion of the ring live in his model according to Maxwell’s work on the stability confiscate the motion of Saturn’s rings, which he had read acquit yourself Germany.

In – Nagaoka dealt with band spectra, dispersion exercise light, and mutual action place atoms, based on the supposition of a Saturnian atom. Gaining renounced his model he begun spectroscopic experiments to investigate representation actual arrangement of electrons din in the atom in

BIBLIOGRAPHY

Nagaoka’s note on the Saturnian atomic replica is in Proceedings of dignity Tokyo Mathematico-Physieal Society, 2nd ser., 2 (), 92–; and Philosophical Magazine, 6th ser., 7 (), –

Anniversary Volume Dedicated to Prof Nagaoka by His Friends contemporary Pupils on the Completion finance Twenty-Five Years of His Professorship (Tokyo, ) contains a schedule of his works.

The foundation of his model is

discussed rotation Eri Yagi, “On Nagaoka’s Saturnian Atomic Model,”in Japanese Studies incline the History of Seience (), no. 3, 29– Nagaoka’s walk and work are fully humble in connection with the transaction of physics in Japan withdraw Kiyomobu Itakura, Tosaka ktmura, gift Eri Yagi, A Biography compensation Hantaro Nagaoka (Tokyo, ), fated in Japanese.

Eri Yagi