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photographic processing

(Encyclopedia)photographic processing, set of procedures by which the latent, or invisible, image produced when a photographic film is exposed to light is made into a permanent visible image. The negative may b...

chromatography

(Encyclopedia)chromatography krōˌmətŏgˈrəfē [key], resolution of a chemical mixture into its component compounds by passing it through a system that retards each compound to a varying degree; a system capabl...

dextrin

(Encyclopedia)dextrin, any one of a number of carbohydrates having the same general formula as starch but a smaller and less complex molecule. They are polysaccharides and are produced as intermediate products in t...

computer-aided manufacturing

(Encyclopedia)computer-aided manufacturing (CAM), a form of automation where computers communicate work instructions directly to the manufacturing machinery. The technology evolved from the numerically controlled m...

Cuenca, city, Spain

(Encyclopedia)Cuenca, city , capital of Cuenca prov., E central Spain, in Castile–La Mancha, at the confluence of the Huécar and Júcar rivers, c.3,000 ft (910 m) ...

Cushing, Frank Hamilton

(Encyclopedia)Cushing, Frank Hamilton, 1857–1900, American ethnologist, b. North East, Pa. He published his first scientific paper at the age of 17, and at 18 joined the American ethnology bureau at the Smithsoni...

chemical analysis

(Encyclopedia)chemical analysis, the study of the chemical composition and structure of substances. More broadly, it may be considered the corpus of all techniques whereby any exact chemical information is obtained...

Chiba

(Encyclopedia)Chiba chēˈbä [key], city, capital of Chiba prefecture, central Honshu, Japan, on Tokyo Bay...

Clay, Cassius Marcellus

(Encyclopedia)Clay, Cassius Marcellus, 1810–1903, American politician and diplomat, b. Madison co., Ky. Although he came from a slaveholding family, Clay early came to abhor the institution of slavery. In 1845 he...

Idfu

(Encyclopedia)Idfu ĕdˈ– [key], town (1986 pop. 45,737), S central Egypt, on the Nile River. It is an agricultural trade center and has paper mills and a sugar refinery. Idfu was the capital of a predynastic upp...