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	Encyclopedia: Hantaro Nagaoka
		Abstract: Hantaro Nagaoka became the foremost Japanese professor of modern physics during the early 20th-century and was best known for his Saturnian model of the atom first proposed in 1903.
		Nagaoka pursued his theoretical model as a tool to account for line and band spectra, the interactions of atoms, radioactivity, and other phenomena.
		Hantaro Nagaoka (é•·å²¡åå¤ªé Nagaoka HantarÅ) (1865 â“ 1950) was a Japanese physicist.
	www.nationmaster.com /encyclopedia/Hantaro-Nagaoka (930 words)

	Hantaro Nagaoka - Wikipedia, the free encyclopedia
		Hantaro Nagaoka (長岡半太郎 Nagaoka Hantarō) (1865 – December 11, 1950) was a Japanese physicist and a pioneer of Japanese physics in the early Meiji period.
		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.
		Nagaoka crater on the Moon is named after him.
	en.wikipedia.org /wiki/Hantaro_Nagaoka (343 words)

	The Making of the Spectroscope (Site not responding. Last check: 2007-10-12)
		However, Nagaoka abandoned the model a few years later when the research of J. Thomson determined a fatal flaw.
		Most histories of modern physics stop at this juncture where they speak well of Nagaoka for his work on an atomic model while faulting him for basing his model on obsolete classical physics.
		How to view Nagaoka and his spectroscopic research in these developments is the goal of my paper.
	www.sic.iuhps.org /conf2001/spec_a24.htm (321 words)

	Hantaro Nagaoka - Encyclopedia, History, Geography and Biography (Site not responding. Last check: 2007-10-12)
		Hantaro Nagaoka - Encyclopedia, History, Geography and Biography
		This page was last modified 11:32, 5 Jun 2005.
		This encyclopedia, history, geography and biography article about Hantaro Nagaoka contains research on
	www.arikah.net /encyclopedia/Hantaro_Nagaoka (121 words)

	Adept Alchemy (Robert A. Nelson): Transmutation of Mercury to Gold
		Nagaoka stated that when a discharge was passed through drops of Hg falling between iron electrodes, the formation of silver and other elements was observed.
		Haber apparently made the comment before he had completed his analyses of the electrodes, etc, and determined them to be the source of the Au.
		Most of the criticism of Miethe, Stammreich, and Nagaoka's experimental work focused on the questionable purity of the mercury they used.
	www.rexresearch.com /adept/aa7hgau.htm (3577 words)

	[No title]
		The currently accepted model for what is going on with the electrons was formulated by Erwin Schrodinger in 1926 and it is still much the same with a few refinements.
		The earlier view, put forth by Hantaro Nagaoka in 1904, likening the orbit of the electrons to that of the planets around the sun, was supplanted by these findings.
		Because of the wave nature of the the electrons, their exact location at any point in time is not determinable, but rather is a matter of probability.
	www.geocities.com /Athens/Acropolis/8537/1orbitalsandshells.html (639 words)

	information on hantaro nagaoka: syllabusessays.com- syllabus essays, syllabus term papers, syllabus research papers (Site not responding. Last check: 2007-10-12)
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	syllabusessays.com /cat/paper/161/information-on-hantaro-nagaoka.html (418 words)

	Nagaoka's Saturnian Model of the Atom
		Kinetics of a System of Particles illustrating the Line and the Band Spectrum and the Phenomena of Radioactivity.
		By H. NAGAOKA, Professor of Physics, Imperial University, Tokyo
		SINCE the discovery of the reularity of spectral lines, the kinetics of a material system giving rise to spectral vibrations has been a favourite subject of discussion among physicists.
	dbhs.wvusd.k12.ca.us /webdocs/Chem-History/Nagaoka-1904.html (1503 words)

	Science News Online - Timeline - Archives - 6/1/96
		This question, which has been agitating the scientific world for the past 2 years, was thrashed out at a hot session of the German Chemical Society at Berlin, crowded with dramatic situations and personal clashes of the debating scientists.
		Miethe and Dr. Hantaro Nagaoka, who independently worked out the process by which they claim to have produced gold from a baser metal, massed an attack against the German and Japanese scientists, and were met by the stout defense of their supporters.
		Riesenfeld of the University of Berlin declared that distillation of mercury to absolute purity was impossible -- that there would always be traces of gold present to vitiate the results of the experiment.
	www.sciencenews.org /pages/sn_arch/6_1_96/timeline.htm (296 words)

	The Electron Centennial Page
		The Japanese physicist Hantaro Nagaoka imagined the atom to be like the planet Saturn.
		There was a problem with Nagaoka's picture of the atom.
		Nagaoka, H. "Kinetics of a System of Particles illustrating the Line and the Band Spectrum and the Phenomena of Radioactivity."
	www.dpgraph.com /janine/electron.html (2514 words)

	Adept Alchemy. Part II. Chapter 7. Transmutations of Mercury to Gold
		They found that Au will escape detection if certain impurities are present, producing an inhomogenous distribution of Au which becomes detectable only after the arc treatment has coagulated it.
		Mercury in which no Au could be detected was subjected to six different treatments, but no Au was formed.
		Nagaoka, H.: Journal de Physique et la Radium 6: 209 (1925)
	www.levity.com /alchemy/nelson2_7.html (3010 words)

	Rutherford, Ernest
		This theory of atomic structure is known as the Rutherford atomic model.
		Although in 1904 Hantaro Nagaoka, a Japanese physicist, had proposed an atomic model with electrons rotating in rings about a central nucleus, it was not taken seriously, because, according to classical electrodynamics, electrons in orbit would have a centripetal
		It was not until 1913 that Niels Bohr, a Danish physicist, postulated that electrons, contrary to classical electrodynamics, do not radiate energy during rotation and do indeed move in orbits about a central nucleus, thus upholding the convictions of Nagaoka and Rutherford.
	www.britannica.com /nobel/macro/5005_61.html (2121 words)

	Physicist / Astronomer H
		Hansteen collected available data and also mounted an expedition to Siberia, where he took many measurements for an atlas of magnetic strength and declination
		Hantaro Nagaoka became the foremost Japanese professor of modern physics during the early 20th-century and was best known for his Saturnian model of the atom first proposed in 1903.
		Nagaoka Hantaro was awarded the Order of Culture in 1937.
	www.mlahanas.de /Stamps/Data/PHPerson/H.htm (3312 words)

	Light and Atoms
		Rutherford concluded that the positive ions in atoms occupied a very small region (contrary to the plum pudding model) with the electron somehow distributed around it.
		This had been suggested earlier by a Japanese physicist Hantaro Nagaoka.
		But the model found it hard to gain acceptance because it was hard to imagine how one could hold up the negatively charged electrons without it falling back to the positively charged nucleus.
	www.raja-suvendra.net /Suvendra/node7.htm (1942 words)

	Joseph Little, Department of English, Niagara University (Site not responding. Last check: 2007-10-12)
		In "Analogy in Science," I drew from the work of psychologist Dedre Gentner to present a methodology for studying the rhetorical effects of analogy in a way that frees the researcher from some of the limitations associated with classical rhetoric.
		Using this methodology, I examined the role of the Saturnian analogy in Japanese physicist Hantaro Nagaoka's theory of atomic structure, showing how the individual correspondences of the analogy constrained Nagaoka to different degrees on issues ranging from nuclear compatibility and radiation collapse to the nature of electricity and alpha and beta radioactivity.
		My current project extends this line of inquiry into the world of nuclear physics by focusing on the ways in which the liquid drop analogy mediated physicists' early understanding of two important phenomena: nuclear mass defect and nuclear excitation.
	www.randomsociety.org /joseph.little/research.htm (200 words)

	Article_8
		These emissions depart the atom in a smooth energy wave manner at the orbiting electron's frequency of orbit as first proposed by the Physicist, Hantaro Nagaoka [4].
		[4] In 1904, the Physicist, Hantaro Nagaoka proposed a model of the atom where electrons circled the nucleus at great distance and velocity in order to maintain a stable orbit, much the same as planets orbit the Sun.
		A Nagaoka electron orbiting an energized nucleus at the not impossible rate of 500 trillion times per second would intercept preliminary outgoing energy emissions from the nucleus and impart frequency and polarization characteristics to the final outgoing emissions placing them in the spectrum of visible light.
	www.physicsnews1.com /article_8.html (8178 words)

	Proton
		In a few strokes of the pen, Rutherford had transformed the solid world around us into empty space.
		Rutherford's picture of the atom had the same problem as Nagaoka's Saturnian atom.
		The electrons should have radiated energy and collapsed into the nucleus.
	members.tripod.com /~NerdiE/proton.htm (1604 words)

	Complexity of Japanese Garden
		The planetary model was so successful that over the years following Newton, it was used as a model for many other systems, most importantly for atomic systems.
		In 1903 Hantaro Nagaoka of Japan had proposed a "Saturnian" model for the atom, with flat rings of electrons orbiting a central postive nucleus.
		Just a few years later, experiments using alpha particles to bombard a gold metal target led the English physicist Sir Ernest Rutherford to describe his planetary model of the atom at a meeting in Manchester, England on March 11, 1911.
	www.comdig.de /ComDig00-02/Rundle.htm (1377 words)

	Great Japanese inventors in History
		Kotaro Honda was born in year 3 of the Meiji Era (1870) in Aichi prefecture.
		He started studying physics at the Science Faculty of the Tokyo Imperial University, and later became interested in the mechanism of magnetic attraction under the guidance of scholars specializing in iron and steel and performing experiments with magnets under the leadership of professor Hantaro Nagaoka from the Department of Physics.
		He graduated from the same university in year 30 of the Meiji Era and became a postgraduate student engaged in research activities at the Physics Institute where he attained the rank of doctor of science.
	www.batfa.com /greatjapanese.html (3377 words)

	hantaro nagaoka
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	Nagaoka City
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	[No title] (Site not responding. Last check: 2007-10-12)
		Student of that time entered the physics by assisting the study of seismology (magnetic field).
		These lead to study of nuclear physics, and fruitful results of Dr. Hantaro NAGAOKA, Yoshio NISHINA, Hideki YUKAWA, Shinichiro TOMONOGAWA, were obtained.
		My Impression; This book was written rather long time ago, and present current of science (orientation to life science) was neglected.
	homepage2.nifty.com /tkeizo/book120823-e.html (274 words)

	Brown/Making Truth: Metaphor in Science. Chapter 5 (Site not responding. Last check: 2007-10-12)
		As it turned out, his model was lost sight of, only to be reinvented a decade or so later.
		In a similar vein, the Japanese physicist Hantaro Nagaoka drew on a well-known paper of James Clerk Maxwell that purported to account for Saturn's rings.
		Nagaoka's model had a fatal weakness: Repulsions between the negatively charged electrons should produce instability.
	www.press.uillinois.edu /epub/books/brown/ch5.html (10930 words)

	Oyo-Buturi International (Sept. 1998)
		Hantaro Nagaoka proposed an atomic model based on the rings of Saturn;
		Nagaoka was 21, K. Minakata was 19, K. Shiga was 16, U.
		Suzuki was 12 and H. Noguchi was only 10 years of age.
	www.jsap.or.jp /ap/1998/ob6709/obi9809/9809.html (3819 words)

	[No title]
		It does not solve the problem of the stability of electron orbit.
		Nagaoka met with Rutherford in 1911 but failed to get any his comments about the issue.
		1911.3.7 [United Kingdom] Atomic nucleus proposed by Ernest Rutherford, not referring to the Saturn model of Hantaro Nagaoka.
	www.ask.ne.jp /~hankaku/english/nptarget.html (14792 words)

	[No title]
		Einstein's explanation of the photoelectric effect, Millikan's experiment to confirm this, the Compton effect, Compton's derivation of the change of wavelength.
		Discovery of emission spectra, early speculations, measurements of Angstrom and Balmer's formula, Rydberg formula and Ritz combination principle, non-classical nature of line spectra, discovery of electron, atomic models of Thomson, Jeans, Lenard and Nagaoka.
		Rutherford's gold-foil experiment, planetary model of the atom, stability problem, Bohr's theory of hydrogenic atoms, stationary orbits, quantisation condition.
	home.iitk.ac.in /~sreerup/BSO203.html (588 words)

	Navigation Menu (Site not responding. Last check: 2007-10-12)
		By Tim U. and Adam K. Hantaro Nagaoka's Atomic Theory
		Nagaoka proposed a theory that was based on Sir J.J. Thomson's atomic theory.
		He suggested that the electrons were not stored with the positive part of the atom but floated around it in rings, a sort of Saturnian orbit.
	www3.telus.net /tudown/nagaoka.htm (49 words)

	VCCI
		His record is splendid and his research on X-ray and clairvoyance is famous.
		Being a remarkable educator, he has become a father of deans of the Japanese physics circles such as Aikitsu Tanakadate, Hantaro Nagaoka and Torahiko Terada.
		I don't know how much he formally recorded and left his achievement.
	www.vcci.or.jp /vcci_e/member/katsudo/publish/kiso/kiso_071.html (1001 words)

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