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Noyce, Robert Norton

(Encyclopedia)Noyce, Robert Norton nois [key], 1927–90, American engineer, inventor, and entrepeneur, b. Burlington, Iowa.; grad. Grinnell College (B.A., 1949), Massachusetts Institute of Technology (Ph.D., 1953)...

Ten Thousand Smokes, Valley of

(Encyclopedia)Ten Thousand Smokes, Valley of: see Katmai National Park and Preserve. ...

Valley of Ten Thousand Smokes

(Encyclopedia)Valley of Ten Thousand Smokes: see Katmai National Park and Preserve. ...

Carborundum

(Encyclopedia)Carborundum: see silicon carbide. ...

San Jose, city, United States

(Encyclopedia)San Jose sănəzāˈ, săn hōzāˈ [key], city (1990 pop. 782,248), seat of Santa Clara co., W central Calif.; founded 1777, inc. 1850. Along with San Francisco and Oakland the city comprises the fou...

semiconductor

(Encyclopedia)CE5 N-type and P-type crystals: In a pure silicon crystal each silicon atom (Si) is surrounded by four valence electrons. In the N-doped semiconductor, illustrated in the left-hand figure, some sil...

Beaverton

(Encyclopedia)Beaverton, city (2020 pop. 99,561), Washington co., NW Oreg., a suburb of Portland, in a farm area; inc. 1893. Beaverton is the heart of the Silicon For...

Moses Lake

(Encyclopedia)Moses Lake, city (1990 pop. 11,235), Grant co., central Wash., on Moses Lake; settled 1897, inc. 1938. A distribution and shipping point for the Columbia basin project, it produces are sugar, potatoes...

sandpaper

(Encyclopedia)sandpaper, abrasive originally made by gluing grains of sand to heavy paper sheets. Today sandpaper is made primarily with quartz, aluminum oxide, or silicon carbide grains, and is graded according to...

Blackstone River Valley National Historical Park

(Encyclopedia)Blackstone River Valley National Historical Park: see National Parks and Monuments (table). ...