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seltzer water
(Encyclopedia)seltzer water, mineral water containing free carbon dioxide, obtained originally from springs at Niederselters, Germany. Reputed to have curative value in treating several diseases, it became very pop...germanium
(Encyclopedia)germanium jərmāˈnēəm [key] [from Germany], semimetallic chemical element; symbol Ge; at. no. 32; at. wt. 72.63; m.p. 937.4℃; b.p. 2,830℃; sp. gr. 5.323 at 25℃; valence +2 or +4. Pure german...Hellín
(Encyclopedia)Hellín ĕlyēnˈ [key], town, Albacete prov., SE Spain, in Castile–La Mancha. An important...Fengjie
(Encyclopedia)Fengjie or Fengkieh both: fŭng-jēĕ [key], city, E Sichuan prov., China. The city is on the Chang River at the beginning of the series of gorges that extends to Yichang, Hubei prov. There are sulfur...Caltanissetta
(Encyclopedia)Caltanissetta kälˌtänēs-sĕtˈtä [key], city, capital of Caltanissetta prov., central Sicily, Italy. It is ...Black, Joseph
(Encyclopedia)Black, Joseph, 1728–99, Scottish chemist and physician, b. France. He was professor of chemistry at Glasgow (1756–66) and from 1766 at Edinburgh. He is best known for his theories of latent heat a...damp
(Encyclopedia)damp, in mining, any mixture of gases in an underground mine, especially oxygen-deficient or noxious gases. The term damp probably is derived from the German dampf, meaning fog or vapor. Several disti...Aix-les-Bains
(Encyclopedia)Aix-les-Bains ĕks-lā-băNˈ [key], town, Savoie dept., SE France, situated on Lake Bourget at the foot of the Alps. It is a popular resort and spa. The town's alum and s...Greek fire
(Encyclopedia)Greek fire, a flammable composition believed to have consisted of sulfur, naphtha, and quicklime. Although known in antiquity, it was first employed on a large scale by the Byzantines. Bronze tubes th...rutile
(Encyclopedia)rutile, mineral, one of three forms of titanium dioxide (TiO2; see titanium). It occurs in crystals, often in twins or rosettes, and is typically brownish red, although there are black varieties. Ruti...Browse by Subject
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