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instrument-landing system

(Encyclopedia)CE5 Instrument-landing system (ILS), the most common instrument-landing approach system, uses two beams to guide an airplane. instrument-landing system (ILS), ground-based radio system designed to...

Reclamation, United States Bureau of

(Encyclopedia)Reclamation, United States Bureau of, agency set up in the Dept. of the Interior under the Reclamation Act of 1902. It is charged with promoting regional economies by developing water and related land...

Tipperary , county, Republic of Ireland

(Encyclopedia)Tipperary tĭpˌərârˈē [key], county (1991 pop. 132,772), 1,643 sq mi (4,255 sq km), S central Republic of Ireland. The county seat is Tipperary. Administratively, the county is divided into North...

water, desalination of

(Encyclopedia)water, desalination of, process of removing soluble salts from water to render it suitable for drinking, irrigation, or industrial uses. The principal methods used for desalination include distillatio...

Karst

(Encyclopedia)Karst kärst [key], Ital. Carso, Slovenian Kras, limestone plateau, W Slovenia, N of Istria and extending c.50 mi (80 km) SE from the lower Isonzo (Soča) valley between the Bay of Trieste and the Jul...

López Mateos, Adolfo

(Encyclopedia)López Mateos, Adolfo äᵺôlˈfō lōˈpās mätāˈōs [key], 1910–69, president of Mexico (1958–64). A lawyer, he became active in the government party. He served as senator (1946–52) and as...

Nottingham, Charles Howard, 1st earl of

(Encyclopedia)Nottingham, Charles Howard, 1st earl of nŏtˈĭngəm [key], 1536–1624, English nobleman. A member of one of the branches of the Howard family, he succeeded his father as Baron Howard of Effingham i...

Baja California Sur

(Encyclopedia)Baja California Sur so͝or [key], state, 27,571 sq mi (71,428 sq km), NW Mexico, on the S Baja California peninsula. ...

isobar

(Encyclopedia)isobar īˌsəbărˈĭk [key], line drawn on a weather map through points of equal atmospheric pressure. Isobars are used to define cyclones (low-pressure regions) and anticyclones (high-pressure regi...

Madison, cities, United States

(Encyclopedia)Madison. 1 City (1990 pop. 12,006), seat of Jefferson co., SE Ind., on the Ohio River; settled c.1806, inc. 1838. It is a port of entry and a tobacco marketing center. Among its manufactures are trans...