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Swabian League

(Encyclopedia)Swabian League, association of Swabian cities and other powers in SW Germany for the protection of trade and for regional peace. The Swabian League of 1488–1534 is the best known of the long series ...

slide rule

(Encyclopedia)slide rule, instrument for making numerical computations and readings, the results of which may be read easily and quickly after performing simple mechanical manipulations. Multiplication and division...

electronic music

(Encyclopedia)electronic music or electro-acoustic music, term for compositions that utilize the capacities of electronic media for creating and altering sounds. Initially, a distinction must be made between the te...

Moog, Robert Arthur

(Encyclopedia)Moog, Robert Arthur mōg [key], 1934–2005, American electronic engineer, inventor of the Moog synthesizer, b. New York City, grad. Queens College (B.S, 1957), Columbia (B.S., 1957), Cornell (Ph.D., ...

Langley, Samuel Pierpont

(Encyclopedia)Langley, Samuel Pierpont, 1834–1906, American scientist, b. Roxbury, Mass., received only a high school education but continued his studies in science in Boston libraries. He became, in 1866, profes...

tuning systems

(Encyclopedia)tuning systems, methods for assigning pitches to the twelve Western pitch names that constitute the octave. The term usually refers to this procedure in the tuning of keyboard instruments. The need fo...

Shaw, Artie

(Encyclopedia)Shaw, Artie, 1910–2004, American clarinetist and bandleader, b. New York City as Arthur Jacob Arshawsky. He began playing professionally as a teenager, becoming a studio musician in New York after 1...

echo sounder

(Encyclopedia)echo sounder, an older instrumentation system for indirectly determining ocean floor depth. Echo sounding is based on the principle that water is an excellent medium for the transmission of sound wave...

osmium

(Encyclopedia)osmium ŏzˈmēəm [key], metallic chemical element; symbol Os; at. no. 76; at. wt. 190.23; m.p. 3,045±30℃; b.p. 5,027±100℃; sp. gr. 22.57 at 20℃; valence usually +0 to +8. Osmium is a very ha...

lyric

(Encyclopedia)lyric, in ancient Greece, a poem accompanied by a musical instrument, usually a lyre. Although the word is still often used to refer to the songlike quality in poetry, it is more generally used to ref...