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Geiger, Johannes Wilhelm

(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...

Sommerfeld, Arnold Johannes Wilhelm

(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...

Geiger counter

(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 ...

Bürgi, Joost

(Encyclopedia)Bürgi, Joost or Jost, 1552–1632, Swiss mathematician and instrument maker. As the official clockmaker (1579–92) to Duke Wilhelm IV of Hesse-Kassell, he developed the first clock with a minute han...

Geiger, Abraham

(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...

Johannes von Saaz

(Encyclopedia)Johannes von Saaz (Johannes von Tepl) yōhänˈəs fən zäts, tĕpˈəl [key], c.1350–c.1414, Bohemian humanist and writer. Johannes is best known for his powerful work Der Ackermann aus Böhmen (c...

Koch, Johannes

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

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