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Drygalski, Erich von

(Encyclopedia)Drygalski, Erich von āˈrĭkh fən drēgälˈskē [key], 1865–1949, German polar explorer. A professor of geography at the Univ. of Munich, he led an expedition that wintered (1892–93) in W Green...

Warburg, Otto Heinrich

(Encyclopedia)Warburg, Otto Heinrich ŏtˈō hīnˈrĭkh värˈbo͝orkh [key], 1883–1970, German physiologist. He was director (1931–53) of the Kaiser Wilhelm Institute (now Max Planck Institute) for cell physi...

Schimper, Karl Friedric

(Encyclopedia)Schimper, Karl Friedric shĭmˈpər [key], 1803–67, German botanist. He did important work in plant morphology and originated the theory, called phyllotaxis, that there is a fixed order to the arran...

de Blasio, Bill

(Encyclopedia)de Blasio, Bill, 1961–, American politician, b. New York City as Warren Wilhelm, Jr., B.A New York Univ., 1984, M.A. Columbia, 1987. A liberal Democrat, de Blasio worked in the New York City governm...

Judd, Charles Hubbard

(Encyclopedia)Judd, Charles Hubbard, 1873–1946, American psychologist, b. India. He was educated at the Univ. of Leipzig (Ph.D., 1896), where he studied with Wilhelm Wundt. Judd taught at the Univ. of Cincinnati,...

Köpenick

(Encyclopedia)Köpenick köˈpənĭk [key], district of Berlin, E Germany, at the confluence of the Spree and Dahme rivers. It is an industrial center and a tourist spot, with forests and large lakes. Köpenick was...

radioactive isotope

(Encyclopedia)radioactive isotope or radioisotope, natural or artificially created isotope of a chemical element having an unstable nucleus that decays, emitting alpha, beta, or gamma rays until stability is reache...

Cassian, John

(Encyclopedia)Cassian, John kăshˈən [key] (Johannes Cassianus), 360–435, an Eastern Christian monk and theologian who brought Eastern spirituality to the West. Cassian toured the ascetic monastic settlements o...

Tübingen

(Encyclopedia)Tübingen tüˈbĭng–ən [key], city (1994 pop. 83,553), Baden-Württemberg, SW Germany, on the Neckar River. It is a cultural and industrial center; manufactures include textiles, machinery, metal ...

Regiomontanus

(Encyclopedia)Regiomontanus rēˌjēōmŏnˌtāˈnəs [key] [Lat.,=belonging to the royal mountain, i.e., to Königsberg], 1436–76, German astronomer and mathematician, b. Königsberg. His original name was Johan...