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solar energy
(Encyclopedia)solar energy, any form of energy radiated by the sun, including light, radio waves, and X rays, although the term usually refers to the visible light of the sun. Solar energy is needed by green plants...Sinai
(Encyclopedia)Sinai sīˈnī [key], triangular peninsula, c.23,000 sq mi (59,570 sq km), NE Egypt. It is c.230 mi (370 km) long and 150 mi (240 km) wide and extends north into a broad isthmus linking Africa and Asi...Mahfouz, Naguib
(Encyclopedia)Mahfouz, Naguib nəgēbˈ mäkhfo͞osˈ [key], 1911–2006, Egyptian novelist and short-story writer, b. Cairo. After his graduation (1934) from Cairo Univ., he worked in various government ministries...Coronado, Francisco Vásquez de
(Encyclopedia)Coronado, Francisco Vásquez de fränthēsˈkō väsˈkāth dā kōrōnäˈᵺō [key], c.1510–1554, Spanish explorer. He went to Mexico with Viceroy Antonio de Mendoza and in 1538 was made governor...cuneiform
(Encyclopedia)CE5 Examples of the development of cuneiform cuneiform kyo͞onēˈĭfôrm [key] [Lat.,=wedge-shaped], system of writing developed before the last centuries of the 4th millennium b.c. in the lower ...puppet
(Encyclopedia)puppet, human or animal figure, generally of a small size and performing on a miniature stage, manipulated by an unseen operator who usually speaks the dialogue. A distinction is made between marionet...Pétain, Henri Philippe
(Encyclopedia)Pétain, Henri Philippe äNrēˈ fēlēpˈ pātăNˈ [key], 1856–1951, French army officer, head of state of the Vichy government (see under Vichy). In World War I he halted the Germans at Verdun (1...Cabeza de Vaca, Álvar Núñez
(Encyclopedia)Cabeza de Vaca, Álvar Núñez älˈvär no͞oˈnyāth käbāˈthä dā väˈkä [key], c.1490–c.1557, Spanish explorer. Cabeza de Vaca [cow's head] was not actually a surname but a hereditary title...Andes
(Encyclopedia)Andes ănˈdēz [key], mountain system, more than 5,000 mi (8,000 km) long, W South America. The ranges run generally parallel to the Pacific coast and extend from Tierra del Fuego northward, across t...Djibouti, country, Africa
(Encyclopedia)CE5 Djibouti jēbo͞otēˈ [key], officially Republic of Djibouti, republic (2015 est. pop. 828,000), c.8,900 sq mi (23,057 sq km), E Africa, on the Gulf of Aden. It is bounded by Eritrea (N), Ethi...Browse by Subject
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