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cittern

(Encyclopedia)cittern sĭtˈərn [key], stringed musical instrument of the guitar family having an oval body, a flat back, and a fretted neck. Its strings, made of wire and varying in number, were plucked. It was f...

chronometer

(Encyclopedia)chronometer krənŏmˈətər [key], instrument for keeping highly accurate time, used especially in navigation. Before the advent of radio time signals it was the only device that provided the time ac...

Wollaston, William Hyde

(Encyclopedia)Wollaston, William Hyde, 1766–1828, English scientist, M.D. Cambridge, 1793. His wide-ranging scientific achievements include the discovery (1802) of the dark lines (Fraunhofer lines) in the solar s...

Segovia, Andrés

(Encyclopedia)Segovia, Andrés ändrāsˈ sāgōˈvyä [key], 1893–1987, Spanish guitarist. Segovia studied at the Granada Musical Institute. He is famous for his transcriptions of early contrapuntal music, which...

Barrère, Georges

(Encyclopedia)Barrère, Georges zhôrzh bärĕrˈ [key], 1876–1944, French-American flutist and conductor, grad. Paris Conservatory, 1895. In Paris he was solo flutist (1897–1905) of the Colonne Concerts and th...

disk plow

(Encyclopedia)disk plow or disk, farm implement employing a row or rows of concave circular steel disks that cut and pitch the soil in a way somewhat similar to a moldboard plow. It can be used in many situations w...

mah jongg

(Encyclopedia)mah jongg mä jông [key], four-handed game, probably of Chinese origin, popular in the United States. It is played in many variations throughout China. In 1920, Joseph P. Babcock, an American travele...

Karman, Theodor von

(Encyclopedia)Karman, Theodor von tāˈōdôrˌ fôn kärˈmän [key], 1881–1963, American aeronautical engineer, b. Hungary, grad. Royal Technical Univ., Budapest (1902), and Univ. of Göttingen, Germany (Ph.D.,...

timberline

(Encyclopedia)timberline, elevation above which trees cannot grow. Its location is influenced by the various factors that determine temperature, including latitude, prevailing wind directions, and exposure to sunli...

schooner

(Encyclopedia)schooner sko͞oˈnər [key], sailing vessel, rigged fore-and-aft, with from two to seven masts. Schooners can lie closer to the wind than square-rigged sailing ships, need a smaller crew, and are very...