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roof

(Encyclopedia)roof, overhead covering of a building with its framework support. Various methods of construction, such as are suited to different climates, have diversified exterior and interior architectural effect...

pigmentation

(Encyclopedia)pigmentation, name for the coloring matter found in certain plant and animal cells and for the color produced thereby. Pigmentation occurs in nearly all living organisms. Almost all plants synthesize ...

SETI

(Encyclopedia)SETI sĕtˈē [key] [Search for ExtraTerrestrial Intelligence], name given to a series of independent programs to detect radio signals from civilizations beyond the solar system. Modern SETI efforts c...

cormorant

(Encyclopedia)cormorant kôrˈmərənt [key], common name for large aquatic birds, related to the gannet and the pelican, and found chiefly in temperate and tropical regions, usually on the sea but also on inland w...

Akasaki, Isamu

(Encyclopedia)Akasaki, Isamu, 1929–2021, Japanese physicist, b. Chiran, Japan, Kyoto Univ. (BA, 1942), Nagoya Univ. (Ph.D., 1964). Aftger graduating from college, Akasaki worked as an engineer before ...

Fiske, John

(Encyclopedia)Fiske, John, 1842–1901, American philosopher and historian, b. Hartford, Conn. Born Edmund Fisk Green, he changed his name in 1855 to John Fisk, adding the final e in 1860. He opened a law practice ...

Amaral, Tarsila do

(Encyclopedia)Amaral, Tarsila do, 1886–1973, Brazilian painter, usually known as Tarsila. She brought modern art to Brazil, mingling Brazilian themes with modernistic imagery in her paintings. After studying in B...

Greene, Evarts Boutell

(Encyclopedia)Greene, Evarts Boutell ĕvˈərts, bo͞otĕlˈ [key], 1870–1947, American historian, b. Kobe, Japan, where his parents were missionaries, grad. Harvard (B.A., 1890; Ph.D., 1893). He began teaching A...

Greenfield

(Encyclopedia)Greenfield <1> City (2020 pop. 18,937), Monterey co., SW Calif.; inc. 1947. Thirty-three miles SE of Salinas, the town was originally founded in 1...

giant clam

(Encyclopedia)giant clam, common name for the largest bivalve mollusk in the world, Tridacna gigas, also known as the bear's paw clam. The giant clam may weigh over 500 lb (225 kg) and attain a length of over 4 ft ...