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Civitavecchia

(Encyclopedia)Civitavecchia chēˈvētä-vĕkˈkēä [key], city, in Latium, W central Italy, on the Tyrrhenian Sea. The ...

glaze, in pottery

(Encyclopedia)glaze, translucent layer that coats pottery to give the surface a finish or afford a ground for decorative painting. Glazes—transparent, white, or colored—are fired on the clay. Of the various art...

Fairmont

(Encyclopedia)Fairmont, city (2020 pop. 18,302), seat of Marion co., N central W.Va., where the West Fork and Tygart rivers form the Monongahela; settled 1793 around ...

Bridgman, Percy Williams

(Encyclopedia)Bridgman, Percy Williams, 1882–1961, American physicist, b. Cambridge, Mass., grad. Harvard (B.A., 1904; Ph.D., 1908). From 1910 he taught at Harvard, as professor from 1919. He won the 1946 Nobel P...

Zielona Góra

(Encyclopedia)Zielona Góra zhĕlôˈnä go͞oˈrä [key], Ger. Grünberg, city (1993 est. pop. 115,100), capital (with Gorzów) of Lubuskie prov., W Poland. It is a railroad junction and has lignite mines. Famous ...

ore

(Encyclopedia)ore, metal-bearing mineral mass that can be profitably mined. Nearly all rock deposits contain some metallic minerals, but in many cases the concentration of metal is too low to justify mining the ore...

Nanterre

(Encyclopedia)Nanterre näNtârˈ [key], city (1990 pop. 86,627), capital of Hauts-de-Seine dept., N central France, on the right bank of the Seine River. It is an administrative and industrial center where metals,...

ash, in chemistry

(Encyclopedia)ash, in chemistry, solid residue of combustion. The chemical composition of an ash depends on that of the substance burned. Wood ash contains metal carbonates (e.g., potassium carbonate) and oxides fo...

Sabatier, Paul, French organic chemist

(Encyclopedia)Sabatier, Paul, 1854–1941, French organic chemist, D.Sc. Collège de France, 1880. He joined the faculty at the Univ. of Toulouse in 1882 and taught there until he retired in 1930. Sabatier was a co...

Saint-Omer

(Encyclopedia)Saint-Omer săNtômĕrˈ [key], city (1990 pop. 15,304), Pas-de-Calais dept., N France, in Flanders, on the Aa River. The chief manufactures are metals, textiles, paper, and beer. The city grew around...

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