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Nafud

(Encyclopedia)Nafud nĕfo͞odˈ [key], desert area in the northern part of the Arabian peninsula, occupying a great oval depression; 180 mi (290 km) long and 140 mi (225 km) wide. This area of red sand is surrounde...

Cavalieri, Lina

(Encyclopedia)Cavalieri, Lina lēˈnä kävälyĕˈrē [key], 1874–1944, Italian operatic soprano. After her debut in Lisbon in 1900 she achieved great success throughout Europe and in the United States in the ly...

European Free Trade Association

(Encyclopedia)European Free Trade Association (EFTA), customs union and trading bloc; its current members are Iceland, Liechtenstein, Norway, and Switzerland. EFTA was established in 1960 by Austria, Denmark, Great...

forest

(Encyclopedia)forest, a dense growth of trees, together with other plants, covering a large area of land. The science concerned with the study, preservation, and management of forests is forestry. A forest is an ec...

meteor

(Encyclopedia)meteor, appearance of a small particle flying through space that interacts with the earth's upper atmosphere. While still outside the atmosphere, the particle is known as a meteoroid. Countless meteor...

Tunguska

(Encyclopedia)Tunguska to͝on-go͞osˈkə [key], is the name given to the lower course of the Angara River. It flows generally west and joins the Yenisei at Strelka. The area of the three rivers is the home of the...

Ea

(Encyclopedia)Ea ĕngˈkē [key], ancient water god of Sumerian origin, worshiped in Babylonian religion. The great benefactor of mankind, Ea was called the lord of wisdom, of magic, and of the arts and sciences. W...

Alpena

(Encyclopedia)Alpena ălpēˈnə [key], city, seat of Alpena co., N Mich., on Thunder Bay, an arm of Lake Huron; inc. 1871. Limestone quarried nearby is used to make cement, Alpena's ch...

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