Columbia Encyclopedia

Search results

500 results found

Schäffle, Albert

(Encyclopedia)Schäffle, Albert älˈbĕrt shĕfˈlə [key], 1831–1903, German economist and sociologist. He taught economics at the universities of Tübingen and Vienna. His views were based partly on the ideali...

Schwann, Theodor

(Encyclopedia)Schwann, Theodor tāˈōdōr shvän [key], 1810–82, German physiologist and histologist. He was a student of J. P. Müller and professor at the universities of Louvain (1838–48) and Liège (from 1...

chloroplast

(Encyclopedia)chloroplast klōrˈəplăstˌ, klôrˈ– [key], a complex, discrete green structure, or organelle, contained in the cytoplasm of plant cells. Chloroplasts are reponsible for the green color of almost...

albedo

(Encyclopedia)albedo ălbēˈdō [key], reflectivity of the surface of a planet, moon, asteroid, or other celestial body that does not shine by its own light. Albedo is measured as the fraction of incident light th...

geodesic dome

(Encyclopedia)CE5 Geodesic dome geodesic dome jēˌədĕsˈĭk, –dēˈsĭk [key], structure that roughly approximates a hemisphere. Popular in recent years as economical, easily erected buildings, geodesic do...

gibberellins

(Encyclopedia)gibberellins jĭbˌərĕlˈĭnz [key], a group of growth-regulating substances of plants, having complex chemical structure, of which the best known, gibberellic acid, is noted for its promotion of st...

Ewing, Sir James Alfred

(Encyclopedia)Ewing, Sir James Alfred yo͞oˈĭng [key], 1855–1935, Scottish engineer and physicist. As professor at Tokyo (1878–83), Dundee (1883–90), and Cambridge (1890–1903), he helped establish program...

fascia

(Encyclopedia)fascia făshˈēə [key], fibrous tissue network located between the skin and the underlying structure of muscle and bone. Fascia is composed of two layers, a superficial layer and a deep layer. Super...

Gregory, Horace

(Encyclopedia)Gregory, Horace, 1898–1982, American poet and critic, b. Milwaukee, Wis., grad. Univ. of Wisconsin, 1923. His poetry is noted for its dramatic structure and penetrating insights into the harshness o...

truss

(Encyclopedia)CE5 A. King post truss B. Queen, with princess posts truss, in architecture and engineering, a supporting structure or framework composed of beams, girders, or rods commonly of steel or wood lying...