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Krugersdorp

(Encyclopedia)Krugersdorp kro͞oˈgərzdôrp [key], city, part and seat of Mogale City local municipality, Gauteng prov., NE South Africa. The chief industrial city of the W Witwatersrand, Krugersdorp is the center...

Port Pirie

(Encyclopedia)Port Pirie pĭrˈē [key], city and municipality (2016 pop. 17,364), South Australia, S Australia, on an inlet of Spencer Gulf. It is a railroad center and has uranium refineries and smelting works fo...

Port Radium

(Encyclopedia)Port Radium, mining village, N central Northwest Territories, Canada, on Great Bear Lake. The mines were discovered in 1930 and yielded deposits of pitchblende, from which much radium was produced. Du...

Becquerel

(Encyclopedia)Becquerel bĕkərĕlˈ [key], family of French physicists. Antoine César Becquerel, 1788–1878, was a pioneer in electrochemical science. He was professor of physics at the Muséum d'Histoire nature...

nuclear reactor

(Encyclopedia)CE5 Power reactor system nuclear reactor, device for producing controlled release of nuclear energy. Reactors can be used for research or for power production. A research reactor is designed to pr...

Klaproth, Martin Heinrich

(Encyclopedia)Klaproth, Martin Heinrich märˈtēn hīnˈrĭkh kläpˈrōt [key], 1743–1817, German chemist. He is often referred to as the father of analytic chemistry. He recognized (1789) the presence of zirco...

Příbram

(Encyclopedia)Příbram pərzhĭbˈräm [key], town (1991 pop. 36,898), SW Czech Republic, in Bohemia. It is one of the oldest gold- and silver-mining centers of Bohemia, with mine shafts more than 3,000 ft (914 m)...

radon

(Encyclopedia)radon rāˈdŏn [key], gaseous radioactive chemical element; symbol Rn; at. no. 86; mass no. of most stable isotope 222; m.p. about −71℃; b.p. −61.8℃; density 9.73 grams per liter at STP; vale...

Kingsville

(Encyclopedia)Kingsville, city (1990 pop. 25,276), seat of Kleberg co., S Tex.; inc. 1911. It is headquarters of the gigantic King Ranch. The city is a processing center for cotton, livestock, vegetables, and dairy...

Fergana

(Encyclopedia)Fergana or Ferghana both: fyĕrgənäˈ [key], city, capital of Fergana region, E Uzbekistan, in the Fergana ...