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Pernik

(Encyclopedia)Pernik pĕrˈnĭk [key], city (1993 pop. 91,075), W Bulgaria, on the Struma River. The industrial center of a coal-mining region, it has iron and steel smelters, glassworks, and power plants. Pernik i...

monitor, type of warship

(Encyclopedia)monitor, type of turreted warship (no longer used) carrying heavy guns, having little draft, and lying low in the water. Monitors were so called from the first of the class, the Monitor, built for the...

Auckland

(Encyclopedia)Auckland ôkˈlənd [key], city (2021 pop. 1,630,092), N North Island, New Zealand. It is situated on an isthmus and is the largest urban region and chief port of the coun...

Pepper, Beverly

(Encyclopedia)Pepper, Beverly, American sculptor, b. Brooklyn, N.Y. She lived in Italy from the 1950s. Pepper began as a social realist painter but soon turned to sculpture, inspired by the carvings at Angkor Wat (...

brass

(Encyclopedia)brass, alloy having copper (55%–90%) and zinc (10%–45%) as its essential components. The properties of brass vary with the proportion of copper and zinc and with the addition of small amounts of o...

sandstone

(Encyclopedia)sandstone, sedimentary rock formed by the cementing together of grains of sand. The usual cementing material in sandstone is calcium carbonate, iron oxides, or silica, and the hardness of sandstone va...

copper, chemical element

(Encyclopedia)copper, metallic chemical element; symbol Cu [Lat. cuprum=copper]; at. no. 29; at. wt. 63.546; m.p. 1,083.4℃; b.p. 2,567℃; sp. gr. 8.96 at 20℃; valence +1 or +2. Copper and some of its alloys ha...

Eisenhüttenstadt

(Encyclopedia)Eisenhüttenstadt īˌzənhütˈənshtät [key], city, Brandenburg, E Germany; on the Oder River at the border with ...

Chichibu

(Encyclopedia)Chichibu chēˈchēbo͞o [key], city, Saitama prefecture, central Japan, on the Ara River. It is a ...

Hunedoara

(Encyclopedia)Hunedoara ho͞onādwäˈrä [key], Hung. Vajdahunyad, city, W central Romania, in Transylvani...