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tracer

(Encyclopedia)tracer, an identifiable substance used to follow the course of a physical, chemical, or biological process. In chemistry the ideal tracer has the same chemical properties as the molecule it replaces a...

Troy , ancient city, Asian Turkey

(Encyclopedia)Troy, ancient city made famous by Homer's account of the Trojan War. It is also called Ilion or, in Latin, Ilium. Its site is almost universally accepted as the mound now named Hissarlik, in Asian Tur...

Barth, Karl

(Encyclopedia)Barth, Karl bärt [key], 1886–1968, Swiss Protestant theologian, one of the leading thinkers of 20th-century Protestantism. He helped to found the Confessing Church and his thinking formed the theol...

Conrad II, ruler of the Holy Roman Empire

(Encyclopedia)Conrad II, c.990–1039, Holy Roman emperor (1027–39) and German king (1024–39), first of the Salian dynasty of the Holy Roman Empire. With the end of the Saxon line on the death of Henry II, the ...

theory

(Encyclopedia)theory, in music, discipline involving the construction of cognitive systems to be used as a tool for comprehending musical compositions. The discipline is subdivided into what can be called speculati...

Papen, Franz von

(Encyclopedia)Papen, Franz von fränts fən päˈpən [key], 1879–1969, German politician. Appointed (1913) military attaché to the German embassy in Washington, he was implicated in espionage activities that le...

Frankfurt Parliament

(Encyclopedia)Frankfurt Parliament, 1848–49, national assembly convened at Frankfurt on May 18, 1848, as a result of the liberal revolution that swept the German states early in 1848. The parliament was called by...

Mann, Thomas

(Encyclopedia)Mann, Thomas tōˈmäs män [key], 1875–1955, German novelist and essayist, the outstanding German novelist of the 20th cent., b. Lübeck; brother of Heinrich Mann. A writer of great intellectual br...

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...

Schumann, Robert Alexander

(Encyclopedia)Schumann, Robert Alexander sho͞oˈmän [key], 1810–56, German composer. Both as a composer and as a highly articulate music critic he was a leader of the romantic movement. He studied theory with H...