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El Paso
(Encyclopedia)El Paso ĕl păˈsō [key], city (2020 pop. 678,815), seat of El Paso co., extreme W Tex., on ...sublimation, in chemistry
(Encyclopedia)sublimation sŭblĭmāˈshən [key], change of a solid substance directly to a vapor without first passing through the liquid state. The term is also used to describe the reverse process of the gas ch...carbon tetrachloride
(Encyclopedia)carbon tetrachloride tĕˌtrəklôrˌəmĕthˈān [key], CCl4, colorless, poisonous, liquid organic compound that boils at 76.8℃. It is toxic when absorbed through the skin or when inhaled. It react...Holyoke
(Encyclopedia)Holyoke hōˈlē-ōkˌ, hōlˈyōk [key], city (2020 pop. 38,238), Hampden co., S cen...aloe
(Encyclopedia)aloe ălˈō [key] [Gr.], any species of the genus Aloe, succulent perennials of the family Lilaceae (lily family), native chiefly to the warm dry areas of S Africa and also to tropical Africa, but cu...hardpan
(Encyclopedia)hardpan, condition of the soil or subsoil in which the soil grains become cemented together by such bonding agents as iron oxide and calcium carbonate, forming a hard, impervious mass. It is disadvant...Charles, river, United States
(Encyclopedia)Charles, river, c.60 mi (97 km) long, rising in E Mass. and flowing generally NE to Boston Bay; it separates Boston from Cambridge. Extensive development to the riverfront includes the Esplanade, a se...dust, atmospheric
(Encyclopedia)dust, atmospheric, minute particles slowly settling or suspended by slight currents and existing in varying amounts in all air. There is least dust at high levels over the ocean and most at low levels...Brinkley, David McClure
(Encyclopedia)Brinkley, David McClure, 1920–2003, American news broadcaster, b. Wilmington, N.C. He began (1942) his lengthy journalistic career as a reporter for United Press, soon (1943) joining the National Br...cloud chamber
(Encyclopedia)cloud chamber, device used to detect elementary particles and other ionizing radiation. A cloud chamber consists essentially of a closed container filled with a supersaturated vapor, e.g., water in ai...Browse by Subject
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