翻訳と辞書 Words near each other ・ Johann Jacob Grasser ・ Johann Jacob Heber ・ Johann Jacob Löwe ・ Johann Jacob Moser ・ Johann Jacob Paul Moldenhawer ・ Johann Jacob Roemer ・ Johann Jacob Schweppe ・ Johann Jacob Schütz ・ Johann Jacob Tischbein ・ Johann Jacob Vitriarius ・ Johann Jacob Zimmermann ・ Johann Jacoby ・ Johann Jahn ・ Johann Jakob Bachofen ・ Johann Jakob Baegert ・ Johann Jakob Balmer ・ Johann Jakob Bernhardi ・ Johann Jakob Bethmann ・ Johann Jakob Biedermann ・ Johann Jakob Blumer ・ Johann Jakob Bodmer ・ Johann Jakob Breitinger ・ Johann Jakob Brucker ・ Johann Jakob Christian Donner ・ Johann Jakob Dorner the Elder ・ Johann Jakob Dorner the Younger ・ Johann Jakob Engel ・ Johann Jakob Frey ・ Johann Jakob Frey the Elder ・ Johann Jakob Fried Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Johann Jakob Balmer ： ウィキペディア英語版 Johann Jakob Balmer Johann Jakob Balmer (May 1, 1825 – March 12, 1898) was a Swiss mathematician and mathematical physicist. ==Biography == Balmer was born in Lausen, Switzerland, the son of a Chief Justice also named Johann Jakob Balmer. His mother was Elizabeth Rolle Balmer, and he was the oldest son. During his schooling he excelled in mathematics, and so decided to focus on that field when he attended university. He studied at the University of Karlsruhe and the University of Berlin, then completed his Ph.D. from the University of Basel in 1849 with a dissertation on the cycloid. Johann then spent his entire life in Basel, where he taught at a school for girls. He also lectured at the University of Basel. In 1868 he married Christine Pauline Rinck at the age of 43. The couple had a total of six children. Despite being a mathematician, he is not remembered for any work in that field; rather, his major contribution (made at the age of sixty, in 1885) was an empirical formula for the visible spectral lines of the hydrogen atom, the study of which he took up at the suggestion of Eduard Hagenbach also of Basel.〔 p 360〕 Using Ångström's measurements of the hydrogen lines, he arrived at a formula for computing the wavelength as follows: :$\backslash lambda\backslash \; =\; \backslash frac$ for ''n'' = 2, ''h'' = 3.6456×10−7 m, and ''m'' = 3, 4, 5, 6, and so forth. In his 1885 notice, he referred to ''h'' (now known as the ''Balmer constant'') as the "fundamental number of hydrogen." Balmer then used this formula to predict the wavelength for ''m'' = 7 and Hagenbach informed him that Ångström had observed a line with wavelength 397 nm. Two of his colleagues, Hermann Wilhelm Vogel and William Huggins, were able to confirm the existence of other lines of the series in the spectrum of hydrogen in white stars. Balmer's formula was later found to be a special case of the Rydberg formula, devised by Johannes Rydberg. : $\backslash frac\backslash \; =\; \backslash frac\; \backslash left(\; \backslash frac\; -\; \backslash frac\; \backslash right)=\; R\_H\; \backslash left(\; \backslash frac\; -\; \backslash frac\; \backslash right)$ with $R\_H$ being the Rydberg constant for hydrogen, $n\_1\; =\; 2$ for Balmer's formula, and $n\_2\; >\; n\_1$. A full explanation of why these formulas worked, however, had to wait until the presentation of the Bohr model of the atom by Niels Bohr in 1913. Johann Balmer died in Basel. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Johann Jakob Balmer」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.