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Roentgen, Wilhelm Conrad

(Encyclopedia)Roentgen or Röntgen, Wilhelm Conrad both: rĕntˈgĭn, rŭntˈ–, Ger. vĭlˈhĕlm kônˈrät röntˈgən [key], 1845–1923, German physicist. His notable research in many fields of physics, especi...

roentgenium

(Encyclopedia)roentgenium, artificially produced radioactive chemical element; symbol Rg; at. no. 111; mass number of most stable isotope 280; m.p., b.p., sp. gr., and valence unknown. Situated in Group 11 of the p...

Würzburg

(Encyclopedia)Würzburg vürtsˈbo͝ork [key], city (1994 pop. 128,875), capital of Lower Franconia, Bavaria, S central Germany, on the Main River. It is an industrial city, the center of a wine-producing region, a...

William, count of Holland

(Encyclopedia)William, count of Holland, 1227?–1256, German king (1254–56), previously rival king (1247–54) to Conrad IV. William was chosen by Pope Innocent IV to succeed Henry Raspe (d. 1247) as antiking to...

Conrad I, ruler of the Holy Roman Empire

(Encyclopedia)Conrad I, d. 918, German king (911–18). As duke of Franconia he distinguished himself by military exploits and in 911 was elected successor to Louis the Child by the Franconian, Saxon, Bavarian, and...

Conrad the Red

(Encyclopedia)Conrad the Red, d. 955, duke of Lotharingia (Lorraine; 944–53). A Franconian adherent of the German king Otto I (later Holy Roman emperor), he was made duke of Lotharingia and married Otto's daughte...

Conrad, Michael Georg

(Encyclopedia)Conrad, Michael Georg mĭkhˈäĕl gāˈôrk kônˈrät [key], 1846–1927, German critic and novelist. With Karl Bleibtreu, he founded (1885) the journal Gesellschaft as a rallying point for German w...
 

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