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refrigeration

(Encyclopedia)CE5 Compression system of refrigeration refrigeration, process for drawing heat from substances to lower their temperature, often for purposes of preservation. Refrigeration in its modern, portabl...

filtration

(Encyclopedia)filtration: see sewerage; water supply. ...

Jamestown, town, St. Helena

(Encyclopedia)Jamestown, town, port, and capital (1998 pop. 864) of Saint Helena, in the S Atlantic. Once a busy coaling station on the East India route, it lost its importance after the opening of the Suez Canal, ...

Yarra

(Encyclopedia)Yarra, river, 115 mi (185 km) long, rising in the Great Dividing Range, S Victoria, Australia, and flowing generally westward through Melbourne to Port Phillip Bay. It is important to the water supply...

Tipperary , town, Republic of Ireland

(Encyclopedia)Tipperary, town (1991 pop. 4,963), seat of Co. Tipperary, S central Republic of Ireland. The center of a rich agricultural region, it is a farm market. Linoleum, mineral water, condensed milk, and glo...

Vermont, University of

(Encyclopedia)Vermont, University of, officially named the Univ. of Vermont and State Agricultural College, at Burlington; land-grant and state supported; chartered 1791, opened 1800. The university has a state agr...

Mars, in astronomy

(Encyclopedia)Mars, in astronomy, 4th planet from the sun, with an orbit next in order beyond that of the earth. Mars has two natural satellites, discovered by Asaph Hall in 1877. The innermost of these, Phobos...

hydroelectric power

(Encyclopedia)hydroelectric power: see power, electric; water power. ...

ordeal

(Encyclopedia)ordeal, ancient legal custom whereby an accused person was required to perform a test, the outcome of which decided the person's guilt or innocence. By an ordeal, appeal was made to divine authority t...

weather balloon

(Encyclopedia)weather balloon, balloon used in the measurement and evaluation of mostly upper atmospheric conditions (see atmosphere). Information may be gathered during the vertical ascent of the balloon through t...