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Head, Bessie

(Encyclopedia)Head, Bessie, 1937–86, South African writer. Born in South Africa to a white mother and black father, she was placed in foster homes and orphanages as a child. After 1964, she lived in exile in Bots...

Miass

(Encyclopedia)Miass mēäsˈ [key], river (c.390 mi/630 km long), W Siberian Russia. It rises in the eastern slopes of the S Urals and flows N and NE past Chelyabinsk into the Iset, a tributary of the Ob River. The...

sackbut

(Encyclopedia)sackbut săkˈbət [key], Renaissance name for the slide trombone, probably derived from the old French word sacqueboute, which means “pull-push.” The instrument achieved its present form in the 1...

bass viol

(Encyclopedia)bass viol bās vīˈəl [key], properly, the largest instrument of the viol family. The term now refers most often to the double bass. ...

sonata

(Encyclopedia)sonata sənäˈtə [key], in music, type of instrumental composition that arose in Italy in the 17th cent. At first the term merely distinguished an instrumental piece from a piece with voice, which w...

rebec

(Encyclopedia)rebec rēˈbĕk [key], one of the earliest forms of the violin. It was pear-shaped, had from three to five strings, and possessed a strident tone. Its use, which began in the 13th cent., was to play m...

Graham, George

(Encyclopedia)Graham, George, 1674?–1751, English instrument maker. A clockmaker by trade, Graham designed clocks and watches that earned him membership in the Royal Society and were still manufactured into the p...

stereopticon

(Encyclopedia)stereopticon stĕrēŏpˈtĭkən [key], optical projection instrument making multiple use of the magic lantern. The magic lantern uses lenses to throw on a screen a magnified image from a transparent ...

spectrophotometer

(Encyclopedia)spectrophotometer, instrument for measuring and comparing the intensities of common spectral lines in the spectra of two different sources of light. See photometry; spectroscope; spectrum. ...

celesta

(Encyclopedia)celesta sĭlĕˈstə [key], keyboard musical instrument patented in 1886 by Auguste Mustel of Paris. It consists of a set of steel bars fastened over wood resonators and struck by hammers operated fro...