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Silicon Valley
(Encyclopedia)Silicon Valley, an industrial region, approximately 20 mi (32 km) long, in the Santa Clara Valley between Palo Alto and San Jose, mainly in Santa Clara and San Mateo counties, W central Calif., where ...silicon
(Encyclopedia)silicon, nonmetallic chemical element; symbol Si; at. no. 14; interval in which at. wt. ranges 28.084–28.086; m.p. 1,410℃; b.p. 2,355℃; sp. gr. 2.33 at 25℃; valence usually +4. Silicon is the ...silicon carbide
(Encyclopedia)silicon carbide, chemical compound, SiC, that forms extremely hard, dark, iridescent crystals that are insoluble in water and other common solvents. Widely used as an abrasive, it is marketed under su...silicon dioxide
(Encyclopedia)silicon dioxide: see silica.Barossa Valley
(Encyclopedia)Barossa Valley bərôˈsə [key], region of South Australia, S Australia. A major area of wine production 40 mi (64 km) NE of Adelaide, the valley was named by Colonel William Light for the British vi...Golden Valley
(Encyclopedia)Golden Valley. <1> City (2020 pop. 8,801), Mohave co., NW Arizona. The town was named for the development company that originally subdivided the l...Great Valley
(Encyclopedia)Great Valley: see under Appalachian Mountains. ...Fountain Valley
(Encyclopedia)Fountain Valley, city (2020 pop. 57,047), Orange co., S Calif.; inc. 1957. Chiefly residential, Fountain Valley also has diverse manufactures, including...Hunter Valley
(Encyclopedia)Hunter Valley, region of New South Wales, SE Australia. The Hunter River and its tributaries occupy this valley S of the Mt. Royal Range. The land in the upper valley is used for livestock grazing, da...Monument Valley
(Encyclopedia)Monument Valley, scenic arid region, c.2,000 sq mi (5,000 sq km), SE Utah and NE Ariz. Located in the Navajo Indian Reservation, Monument Valley is not a true valley but an area of monolithlike buttes...Browse by Subject
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