Columbia Encyclopedia

(Encyclopedia) Geiger, Johannes Wilhelm (Hans Geiger) gīˈgər [key], 1882–1945, German physicist. Geiger received a doctorate in physics at Erlangen in 1906, then went to Manchester, where he assisted British c...

(Encyclopedia) Sommerfeld, Arnold Johannes Wilhelm ärˈnōlt yōhänˈəs vĭlˈhĕlm zômˈərfĕlt [key], 1868–1951, German physicist and teacher. He received a Ph.D. at Königsburg Univ. in 1891 and was a prof...

(Encyclopedia) Geiger counter or Geiger-Müller (G-M) counter gīˈgər-mŭlˈər, –myo͞oˈlər [key], instrument for the detection and quantitative determination of ionizing radiation such as the alpha and beta ...

(Encyclopedia) Geiger, Abraham gīˈgər [key], 1810–74, German rabbi, Semitic scholar and Orientalist, theologian, and foremost exponent of the Reform movement in Judaism. When he received his doctorate (1833) fr...

(Encyclopedia) Koch, Johannes: see Cocceius, Johannes. ...

(Encyclopedia) Koken, Johannes: see Cocceius, Johannes. ...

(Encyclopedia) Evald, Johannes: see Ewald, Johannes. ...

(Encyclopedia) Schilling, Johannes yōhänˈəs shĭlˈĭng [key], 1828–1910, German sculptor. He is represented by many monuments in Germany, including the colossal Germania (1883), a national monument in the Nie...

(Encyclopedia) Brenz, Johannes yōhänˈəs brĕnz [key], c.1522–67, German Protestant reformer. After coming under the influence of Johannes Oecolampadius and Martin Luther, Brenz stopped celebrating Mass (1523) ...

(Encyclopedia) Fibiger, Johannes yôhäˈnəs fēˈbēgər [key], 1867–1928, Danish pathologist and physician. He served as professor of pathological anatomy at the Univ. of Copenhagen. For his experimental studie...