Columbia Encyclopedia

Search results

500 results found

rectifier

(Encyclopedia)rectifier, component of an electric circuit used to change alternating current to direct current. Rectifiers are made in various forms, all operating on the principle that current passes through them ...

Faulkner, William

(Encyclopedia)Faulkner, William, 1897–1962, American novelist, b. New Albany, Miss., one of the great American writers of the 20th cent. Born into an old Southern family named Falkner, he changed the spelling of ...

Hodgkin's disease

(Encyclopedia)Hodgkin's disease, a type of cancer of the lymphatic system. First identified in 1832 in England by Thomas Hodgkin, it is a type of malignant lymphoma. Incidence peaks in young adults and the elderly....

yellow fever

(Encyclopedia)yellow fever, acute infectious disease endemic in tropical Africa and many areas of South and Central America. Yellow fever is caused by a virus transmitted by the bite of the female Aedes aegypti mos...

Heyerdahl, Thor

(Encyclopedia)Heyerdahl, Thor hāˈərdälˌ, hīˈ– [key], 1914–2002, Norwegian explorer and anthropologist, b. Larvik. He carried out research in the Marquesas Islands in 1937–38 and studied the indigenous ...

Christian Coalition

(Encyclopedia)Christian Coalition, organization founded to advance the agenda of political and social conservatives, mostly comprised of evangelical Protestant Republicans, and to preserve what it deems traditional...

Jordan, Vernon Eulion, Jr.

(Encyclopedia)Jordan, Vernon Eulion, Jr., 1935–2021, African-American civil-rights leader and lawyer, b. Atlanta, Ga., DePauw Univ. (BA, 1957), Howard Univ. Law Sch...

Rowlandson, Thomas

(Encyclopedia)Rowlandson, Thomas rōˈləndsən [key], 1756–1827, English caricaturist, b. London. He studied at the Royal Academy and in Paris, but his passion for gambling prevented him from producing much unti...

Madeira Islands

(Encyclopedia)Madeira Islands mədērˈə, –dârˈə [key], archipelago (1991 pop. 257,692), 308 sq mi (798 sq km), autonomous region of Portugal, in the Atlantic Ocean c.350 mi (560 km) off Morocco. Madeira, the...

Cleland, Max

(Encyclopedia) Cleland, Max, 1942-2021, American politician, b. Atlanta, GA, as Joseph Maxwell Cleland, Stetson Univ. (B.A., 1964), Emory Univ. (M.A., 1968). Cleland enlisted in the Army in 1965 and served in Vie...
 

Browse by Subject