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Regensburg

(Encyclopedia)Regensburg rāˈgənsbo͝orkh [key], city (1994 pop. 125,337), Bavaria, SE Germany, a port at the confluence of the Danube (Donau) and Regen rivers. In English it is known as Ratisbon. The city is a c...

conducting

(Encyclopedia)conducting, in music, the art of unifying the efforts of a number of musicians simultaneously engaged in musical performance. In the Middle Ages and Renaissance the conductor was primarily a time beat...

prion

(Encyclopedia)prion prēˈŏn [key], abnormal form of a protein found in mammals, now generally believed to cause a group of diseases known as prion diseases or transmissible spongiform encephalopathies, which are ...

Petra

(Encyclopedia)Petra pēˈtrə [key], ancient city, in present-day Jordan, known to the Arabs as Wadi Musa for the stream that flows through it. A narrow, winding pass between towering walls leads to the flat, open ...

reading, mental process

(Encyclopedia)reading, process of mentally interpreting written symbols. Facility in reading is an essential factor in educational progress, and instruction in this basic skill is a primary purpose of elementary ed...

Mainz

(Encyclopedia)Mainz mīnts [key], city (1994 pop. 185,487), capital of Rhineland-Palatinate, W Germany, a port on the E bank of the Rhine River opposite the mouth of the Main River. Its French name, also sometimes ...

Pan-Slavism

(Encyclopedia)Pan-Slavism, theory and movement intended to promote the political or cultural unity of all Slavs. Advocated by various individuals from the 17th cent., it developed as an intellectual and cultural mo...

Freemasonry

(Encyclopedia)Freemasonry, teachings and practices of the secret fraternal order officially known as the Free and Accepted Masons, or Ancient Free and Accepted Masons. Because of its identification with 19th-cent...

Spinoza, Baruch

(Encyclopedia)Spinoza, Baruch or Benedict spinōˈzə [key], 1632–77, Dutch philosopher, b. Amsterdam. Politically, Spinoza and Hobbes again share assumptions about the social contract: Right derives from p...

thorium

(Encyclopedia)thorium thôrˈēəm [key] [from Thor], radioactive chemical element; symbol Th; at. no. 90; mass number of most stable isotope 232; m.p. about 1,750℃; b.p. about 4,790℃; sp. gr. 11.7 at 20℃; va...