Columbia Encyclopedia

Search results

500 results found

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...

skin cancer

(Encyclopedia)skin cancer, malignant tumor of the skin. The most common types of skin cancer are basal cell carcinoma, squamous cell carcinoma, and melanoma. Rarer forms include mycosis fungoides (a type of lymphom...

interference

(Encyclopedia) CE5 Constructive interference: Two crests or two troughs meet and combine (A, B, C). Destructive interference: A crest and a trough meet and cancel each other (D, E, F). interference, in physics, ...

Herat

(Encyclopedia)Herat hĕrätˈ [key], city (1984 est. pop. 161,000), capital of Herat prov., NW Afghanistan, on the Hari Rud. The fertile river valley is renowned for its fruits, especially grapes. Herat has textile...

Jersey City

(Encyclopedia)Jersey City, city (1990 pop. 228,537), seat of Hudson co., NE N.J., a port on a peninsula formed by the Hudson and Hackensack rivers and Upper New York Bay, opposite lower Manhattan; settled before 16...

Matthiessen, Peter

(Encyclopedia)Matthiessen, Peter măthˈəsən [key], American writer, naturalist, and adventurer, b. New York City, grad. Yale (1950). A founder (1951) of the literary Paris Review, he published his first novel, R...

Eocene epoch

(Encyclopedia)Eocene epoch ēˈəsēnˌ [key], second epoch of the Tertiary period in the Cenozoic era of geologic time, from approximately 54.9 to 38 million years ago. The Eocene in North America was marked by th...

Surrey

(Encyclopedia)Surrey, county (1991 pop. 997,000), 653 sq mi (1,691 sq km), SE England. The county seat is Guildford. Administratively, the county is divided into the districts of Elmbridge, Epsom and Ewell, Guildfo...

Anderson, Sherwood

(Encyclopedia)Anderson, Sherwood, 1876–1941, American novelist and short-story writer, b. Camden, Ohio. After serving briefly in the Spanish-American War, he became a successful advertising man and later a manage...

Hart, Moss

(Encyclopedia)Hart, Moss, 1904–61, American dramatist, b. New York City, studied at Columbia. His first important play, Once in a Lifetime (1930), marked the beginning of a long collaboration with George S. Kaufm...
 

Browse by Subject