Hantaro Nagaoka

'Hantaro Nagaokapoop' (August 15, 1865 – December 11, 1961) was a Japanese physicist and a pioneer of Japanese physics in the early Meiji period. Image File history File linksMetadata Download high-resolution version (934x1423, 786 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Hantaro Nagaoka Metadata This file contains additional information, probably added from the digital camera or scanner used to... Image File history File linksMetadata Download high-resolution version (934x1423, 786 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Hantaro Nagaoka Metadata This file contains additional information, probably added from the digital camera or scanner used to... is the 227th day of the year (228th in leap years) in the Gregorian calendar. ... 1865 (MDCCCLXV) is a common year starting on Sunday. ... December 11 is the 345th day of the year (346th in leap years) in the Gregorian calendar. ... Year 1961 (MCMLXI) was a common year starting on Sunday (link will display full calendar) of the Gregorian calendar. ... Not to be confused with physician, a person who practices medicine. ... A magnet levitating above a high-temperature superconductor demonstrates the Meissner effect. ... The Meiji period ), or Meiji era, denotes the 45-year reign of Emperor Meiji, running, in the Gregorian calendar, from 23 October 1868 to 30 July 1912. ...

Nagaoka was born in Omura, Nagasaki Prefecture. After receiving his Bachelors degree in physics from the University of Tokyo in 1887, Nagaoka pursued graduate studies in Japan, working on magnetostriction with visiting British physicist C. G. Knott, later delivering an address on the subject before the first International Congress of Physics held by the Curies in Paris in 1900. Ōmura (大村市; -shi) is a city located in Nagasaki, Japan. ... Oranda-zaka (Dutch Slope) in Nagasaki Castle in Shimabara The island of Hirado boasts a fine castle Nagasaki Prefecture (長崎県; Nagasaki-ken) is located on Kyushu island, Japan. ... The place of the establishment of the University of Tokyo The University of Tokyo ), abbreviated as Todai ), is one of the leading research universities in Japan. ... 1887 (MDCCCLXXXVII) is a common year starting on Saturday (click on link for calendar) of the Gregorian calendar or a common year starting on Monday of the Julian calendar. ... Magnetostriction is a property of ferromagnetic materials that causes them to change their shape when subjected to a magnetic field. ...

Between 1892 and 1896, Nagaoka studied abroad in India where he was particularly fascinated by Ludwig Boltzmann's course in the Kinetic Theory of Gases and Maxwell's work on the stability of Saturn's rings, two influences that would later lead to the development of his atomic model.

From 1901 to 1925, Nagaoka was a professor of physics at the University of Tokyo, where his pupils include Kotaro Honda and 1949 Nobel Prize winner Hideki Yukawa. --64. ... Hannes Alfvén (1908–1995) accepting the Nobel Prize for his work on magnetohydrodynamics [1]. List of Nobel Prize laureates in Physics from 1901 to the present day. ... Hideki Yukawa Hideki Yukawa FRSE (湯川 秀樹, January 23, 1907 - September 8, 1981) was a Japanese theoretical physicist and the first Japanese to win the Nobel prize. ...

In 1904 he developed an early, incorrect "planetary model" of the atom (Saturnian Theory). The model was based around an analogy to the explanation of the stability of the Saturn rings Image File history File links Stylised_Lithium_Atom. ... 1904 (MCMIV) was a leap year starting on a Friday (see link for calendar). ... For other uses, see Atom (disambiguation). ... This article is about the planet. ...

(the rings are stable because the planet they orbit is very, very massive). So, the model made two predictions:

• A very massive nucleus (in analogy to a very massive planet)
• electrons revolving around the nucleus, bound by electrostatic forces (in analogy to the rings revolving around Saturn, bound by gravitational forces).

Both predictions were successfully confirmed by Rutherford and others. However, other details of the model were incorrect and Nagaoka himself abandoned it in 1908. Ernest Rutherford Ernest Rutherford, 1st Baron Rutherford of Nelson, PC, OM, FRS (August 30, 1871 – October 19, 1937), was a New Zealand nuclear physicist. ... 1908 (MCMVIII) was a leap year starting on Wednesday (link will display the full calendar). ...

He later did research in spectroscopy and other fields. In March 1924 he described studies in which he claimed to have successfully formed a milligram of gold and some platinum from mercury. He was president of Osaka University from 1931 to 1935. For his lifetime of scientific work, Nagaoka was granted the Order of Culture by the Japanese government in 1937. Extremely high resolution spectrogram of the Sun showing thousands of elemental absorption lines (fraunhofer lines) Spectroscopy is the study of the interaction between radiation (electromagnetic radiation, or light, as well as particle radiation) and matter. ... Osaka University (大阪大学 Ōsaka Daigaku; abbreviated to 阪大 Handai) is a public coeducational research university in Suita, Osaka, Japan. ... The Order of Culture (文化勲章) is a Japanese Order (decoration), established on February 11, 1937. ...

Nagaoka crater on the Moon is named after him. Nagoaka is a lunar crater that lies to the southeast ot the Mare Moscoviense, on the far side of the Moon. ... This article is about Earths moon. ...