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Moorish art and architecture

(Encyclopedia)Moorish art and architecture, branch of Islamic art and architecture developed in the westernmost lands of the Muslims, known as the Maghreb: N Africa and Spain. The Great Mosque at Al Qayrawan in Tun...

coral reefs

(Encyclopedia)coral reefs, limestone formations produced by living organisms, found in shallow, tropical marine waters. In most reefs, the predominant organisms are stony corals, colonial cnidarians that secrete an...

Hadid, Dame Zaha

(Encyclopedia)Hadid, Dame Zaha, 1950–2016, British architect, b. Baghdad, studied American Univ., Beirut (1968–71), Architectural Association School, London (grad. 1977). A partner in Rem Koolhaas's Office for ...

silver

(Encyclopedia)silver, metallic chemical element; symbol Ag [Lat. argentum]; at. no. 47; at. wt. 107.8682; m.p. 961.93℃; b.p. 2,212℃; sp. gr. 10.5 at 20℃; valence +1 or +2. Pure silver is nearly white, lustrou...

coral

(Encyclopedia)coral, small, sedentary marine animal, related to the sea anemone but characterized by a skeleton of horny or calcareous material. The skeleton itself is also called coral. Although most corals form c...

aluminum

(Encyclopedia)aluminum ălˌyo͞omĭnˈēəm [key], metallic chemical element; symbol Al; at. no. 13; at. wt. 26.98154; m.p. 660.37℃; b.p. 2,467℃; sp. gr. 2.6989 at 20℃; valence +3. Aluminum is a silver-white...

antique collecting

(Encyclopedia)antique collecting, the assembling of items of aesthetic, historical, and often monetary value from earlier eras. The term antique initially referred only to the preclassical and classical cultures of...

Gehry, Frank Owen

(Encyclopedia)Gehry, Frank Owen gĕrˈē [key], 1929–, American architect, b. Toronto, Ont., as Frank Owen Goldberg. He is widely considered one of the finest and most artful of contemporary architects. In 1947, ...

Geneva, canton and city, Switzerland

(Encyclopedia)Geneva jənēˈvə [key], Fr. Genève, canton, 109 sq mi (282 sq km), SW Switzerland, surroun...

Sumer

(Encyclopedia)Sumer so͝o-mērˈēən [key]. The term Sumer is used today to designate the southern part of ancient Mesopotamia. From the earliest date of which there is any record, S Mesopotamia was occupied by a ...