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South Burlington

(Encyclopedia)South Burlington, city (1990 pop. 12,809), Chittenden co., NW Vt., on Lake Champlain; inc. 1971. Electronic equipment, skiing equipment, and medical instruments are manufactured. Burlington Internatio...

mantle

(Encyclopedia)mantle, portion of the earth's interior lying beneath the crust and above the core. No direct observation of the mantle, or its upper boundary, has been made; its boundaries have been determined solel...

Rittenhouse, David

(Encyclopedia)Rittenhouse, David, 1732–96, American astronomer and instrument maker, b. near Germantown, Pa., self-educated. A clockmaker by trade, he developed great skill in the making of mathematical instrumen...

Jubal

(Encyclopedia)Jubal jo͞oˈbăl [key], in the Bible, son of Lamech and originator of musical instruments. ...

chamber music

(Encyclopedia)chamber music, ensemble music for small groups of instruments, with only one player to each part. Its essence is individual treatment of parts and the exclusion of virtuosic elements. Originally playe...

reed instrument

(Encyclopedia)reed instrument, in music, an instrument whose sound-producing agent is a thin strip of cane, wood, plastic, or metal that vibrates as air is passed over it. The predecessor of these instruments is th...

Lachenmann, Helmut

(Encyclopedia)Lachenmann, Helmut, 1935–, German composer, b. Stuttgart. One of the most influential European composers of the late 20th and early 21st cents., he studied in Venice with Luigi Nono (1958–60) and ...

Pickering, Edward Charles

(Encyclopedia)Pickering, Edward Charles, 1846–1919, American astronomer and physicist, b. Boston, grad. Harvard (B.S., 1865); brother of W. H. Pickering. He was professor of physics (1868–77) at the Massachuset...

radiosonde

(Encyclopedia)radiosonde rāˈdēōsŏnd [key], group of instruments for simultaneous measurement and radio transmission of meteorological data, including temperature, pressure, and humidity of the atmosphere. The ...

Bürgi, Joost

(Encyclopedia)Bürgi, Joost or Jost, 1552–1632, Swiss mathematician and instrument maker. As the official clockmaker (1579–92) to Duke Wilhelm IV of Hesse-Kassell, he developed the first clock with a minute han...