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micromechanics

(Encyclopedia)micromechanics, the combination of minuscule electrical and mechanical components in a single device less than 1 mm across, such as a valve or a motor. Although micromechanical production processes an...

mangrove

(Encyclopedia)mangrove, large tropical evergreen tree, genus Rhizophora, that grows on muddy tidal flats and along protected ocean shorelines. Mangroves are most abundant in tropical Asia, Africa, and the islands o...

loan

(Encyclopedia)loan, in business, sum of money borrowed at a particular interest rate. More generally, it refers to anything given on condition of its return or repayment of its equivalent. A loan may be acknowledge...

Kienholz, Edward

(Encyclopedia)Kienholz, Edward kēnˈhóltz [key], 1927–94, American sculptor, b. Fairfield, Wash. He moved to Los Angeles in 1953 and was a painter until the late 1950s, when he began to create sculptural relief...

pea

(Encyclopedia)pea, hardy, annual, climbing leguminous plant (Pisum sativum) of the family Leguminosae (pulse family), grown for food by humans at least since the early Bronze Age; no longer known in the wild form. ...

Witte, Count Sergei Yulyevich

(Encyclopedia)Witte, Count Sergei Yulyevich syĭrgāˈ yo͞oˈlyĭvĭch vĭtˈə [key], 1849–1915, Russian premier. A railway administrator, he became minister of communications (1892) and minister of finance (18...

West, Benjamin

(Encyclopedia)West, Benjamin, 1738–1820, American historical painter who worked in England. He was born in Springfield, Pa., in a house that is now a memorial museum at Swarthmore College. After some instruction ...

vortex

(Encyclopedia)vortex vôrˈtĕks [key], mass of fluid in whirling or rotary motion. To simplify the analysis, vortex motion usually describes motions in a frictionless fluid. In such cases the absence of friction w...

zero

(Encyclopedia)zero, that number which, when added to any number, leaves the latter unchanged; its symbol is 0. The introduction of zero into the decimal system was the most significant achievement in the developmen...

Stella, Frank

(Encyclopedia)Stella, Frank, 1936–, American artist, b. Malden, Mass. In his early “black paintings” Stella exhibits the precision and rationality that characterized minimalism, employing parallel angular str...