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Warren Commission

(Encyclopedia)Warren Commission, popular name given to the U.S. Commission to Report upon the Assassination of President John F. Kennedy, established (Nov. 29, 1963) by executive order of President Lyndon B. Johnso...

Martens, Wilfried

(Encyclopedia)Martens, Wilfried, 1936–2013, Belgian statesman. A lawyer, Flemish Christian Democrat, and well-respected negotiator, he was president (1965–71) of the youth wing of the Christian People's party a...

Greenbelt

(Encyclopedia)Greenbelt, city (2020 pop. 24,921), Prince Georges co., W central Md., a residential suburb of Washington, D.C.; chartered 1937. Greenbelt was planned a...

cofferdam

(Encyclopedia)cofferdam, temporary barrier for excluding water from an area that is normally submerged. Made commonly of wood, steel, or concrete sheet piling (see pile), cofferdams are used in constructing the fou...

elevation

(Encyclopedia)elevation, vertical distance from a datum plane, usually mean sea level to a point above the earth. Often used synonymously with altitude, elevation is the height on the earth's surface and altitude, ...

sinus

(Encyclopedia)CE5 Sinuses of the face sinus, cavity or hollow space in the body, usually filled with air or blood. In humans the paranasal sinuses, mucus-lined cavities in the bones of the face, are connected b...

White, Robert Michael

(Encyclopedia)White, Robert Michael, 1924–2010, American aviator, b. New York City. A fighter pilot during World War II, he was shot down over Germany and held in a prisoner-of-war camp (Feb.–Apr, 1945); he was...

Brugmann, Karl

(Encyclopedia)Brugmann, Karl kärl bro͝okˈmän [key], 1849–1919, German philologist. A professor at Leipzig, Brugmann believed that scientific rules of linguistics do not admit of exceptions. With the help of o...

land use

(Encyclopedia)land use, exploitation of land for agricultural, industrial, residential, recreational, or other purposes. Because the United States historically has a laissez-faire attitude toward land use, the land...

Luxembourg, city, Luxembourg

(Encyclopedia)Luxembourg or Luxemburg, city (1991 pop. 75,377), capital of the Grand Duchy of Luxembourg, S Luxembourg, at the confluence of the Alzette and Pétrusse rivers. It is a commercial, banking, industrial...