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reservoir

(Encyclopedia) reservoirreservoirrĕzˈəvôr, –vwär [key], storage tank or wholly or partly artificial lake for storing water. Building an embankment or dam to preserve a supply of water for irrigation…

capillarity

(Encyclopedia) CE5 Capillarity: Water wets the walls of a capillary tube and thus rises, causing the upper surface, or meniscus, of the liquid to be concave; mercury does not wet the walls of a…

Mulholland, William

(Encyclopedia) Mulholland, William, 1855–1935, American engineer, b. Belfast, Ireland. He arrived in Los Angeles in 1877, becoming a laborer for the local water company. Despite his lack of formal…

weathering

(Encyclopedia) weathering, collective term for the processes by which rock at or near the earth's surface is disintegrated and decomposed by the action of atmospheric agents, water, and living things…

fountain

(Encyclopedia) fountain, natural or artificially conveyed flow of water. In ancient Greece columnar shrines were built over springs and dedicated to deities or nymphs. In ancient Rome fountains fed…

Colorado–Big Thompson project

(Encyclopedia) Colorado–Big Thompson project, constructed by the U.S. Bureau of Reclamation to divert water from the headstreams of the Colorado River to irrigate c.720,000 acres (291,400 hectares)…

Croton Aqueduct

(Encyclopedia) Croton AqueductCroton Aqueductkrōˈtən [key], 38 mi (61 km) long, SE N.Y., carrying water from the Croton River basin to New York City; built 1837–42. It was one of the earliest modern…

waterproof and water-repellent fabrics

(Encyclopedia) waterproof and water-repellent fabrics, materials treated with various substances so as to make them impervious to water. Permanent waterproofing is achieved by first coating fabrics…

sap

(Encyclopedia) sap, fluid in plants consisting of water and dissolved substances. Cell sap refers to this fluid present in the large vacuole, or cell cavity, that occupies most of the central portion…

geyser

(Encyclopedia) geysergeysergīˈzər [key] [Icel.], hot spring from which water and steam are ejected periodically to heights ranging from a few to several hundred feet. Notable geysers are found in…