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international language

(Encyclopedia)international language, sometimes called universal language, a language intended to be used by people of different linguistic backgrounds to facilitate communication among them and to reduce the misun...

Nicholas II, czar of Russia

(Encyclopedia)Nicholas II, 1868–1918, last czar of Russia (1894–1917), son of Alexander III and Maria Feodorovna. Discontent at home grew, the army tired of war, the food situation deteriorated, the governme...

nitrogen

(Encyclopedia)nitrogen nīˈtrəjən [key], gaseous chemical element; symbol N; at. no. 7; interval in which at. wt. ranges 14.00643–14.00728; m.p. −209.86℃; b.p. −195.8℃; density 1.25 grams per liter at ...

band

(Encyclopedia)band, in music, a group of musicians playing principally on wind and percussion instruments, usually outdoors. Prior to the 18th cent., the term band was frequently applied in a generic sense to cover...

space science

(Encyclopedia)space science, body of scientific knowledge as it relates to space exploration; it is sometimes also called astronautics. Space science draws on the conventional sciences of physics, chemistry, biolog...

Einstein, Albert

(Encyclopedia)Einstein, Albert īnˈstīn [key], 1879–1955, American theoretical physicist, known for the formulation of the relativity theory, b. Ulm, Germany. He is recognized as one of the greatest physicists ...

ammonia

(Encyclopedia)ammonia, chemical compound, NH3, colorless gas that is about one half as dense as air at ordinary temperatures and pressures. It has a characteristic pungent, penetrating odor. Ammonia forms a minute ...

Marx, Karl

(Encyclopedia)Marx, Karl, 1818–83, German social philosopher, the chief theorist of modern socialism and communism. In 1847 Marx joined the Communist League and with Engels wrote for it the famous Communist M...

Bach, Johann Sebastian

(Encyclopedia)Bach, Johann Sebastian bäkh [key], 1685–1750, German composer and organist, b. Eisenach; one of the greatest and most influential composers of the Western world. He brought polyphonic baroque musi...

Judaism

(Encyclopedia)Judaism jo͞oˈdəĭzˌəm, jo͞oˈdē– [key], the religious beliefs and practices and the way of life of the Jews. The term itself was first used by Hellenized Jews to describe their religious prac...