Columbia Encyclopedia

(Encyclopedia) Terrell tĕrˈəl [key], city (1990 pop. 12,490), Kaufman co., N Tex.; inc. 1883. In a farm area, cattle and horses are raised and there are nurseries; peaches, cotton, and wheat are grown. Motor vehi...

(Encyclopedia) actinium series, natural radioactive decay series beginning with uranium-235 (also called actinouranium) and ending with lead-207. See radioactivity. ...

(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...

(Encyclopedia) Leninogor lyĕˌnyĭnəgôrskˈ [key], city (1989 pop. 68,706), NE Kazakhstan, in the Altai Mts. It is a mining center in an area that is the chief source of Kazakh zinc and lead. Silver, copper, and ...

(Encyclopedia) vermilion, vivid red pigment of durable quality. It is a chemical compound of mercury and sulfur and is known as red sulfide of mercury; it was formerly obtained by grinding pure cinnabar but is now c...

(Encyclopedia) plumbing, piping systems inside buildings for water supply and sewage. The Romans had a highly developed plumbing system; water was brought to Rome by aqueducts and distributed to homes in lead pipes�...

(Encyclopedia)  CE5 Lead storage cell: At the lead-dioxide electrode, electrons from the circuit combine with lead dioxide and sulfuric acid to form lead sulfate and water. At the spongy-lead electrode, lead react...

(Encyclopedia) Cranbrook, city, SE British Columbia, Canada. It is a lumbering, tourism, and lead-zinc mining center.

(Encyclopedia) Buchans, town, central Newfoundland, N.L., Canada, on Red Indian Lake. It has a large mine that yields lead, silver, zinc, and copper. ...

(Encyclopedia) minium: see red lead.