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music hall

(Encyclopedia)music hall. In England, the Licensing Act of 1737 confined the production of legitimate plays to the two royal theaters—Drury Lane and Covent Garden; the demands for entertainment of the rising lowe...

Marriner, Sir Neville

(Encyclopedia)Marriner, Sir Neville, 1924–2016, British conductor, b. Lincoln, England, grad. Royal College of Music, London (1946), studied Paris Conservatory. A violinist, he taught at the Royal College (1949�...

Ripley, Robert LeRoy

(Encyclopedia)Ripley, Robert LeRoy, 1890–1949, American cartoonist, b. Santa Rosa, Calif., as Leroy Robert Ripley. The creator of the Believe It or Not! newspaper cartoon, Ripley began his career at 16 as a sport...

virtual observatory

(Encyclopedia)virtual observatory, a collection of integrated astronomical data archives and software tools that utilize computer networks to create an environment in which research can be conducted. Several countr...

Trudeau, Justin Pierre James

(Encyclopedia)Trudeau, Justin Pierre James tro͞odōˈ [key], 1971–, Canadian politician, b. Ottawa; grad. McGill Univ. (B.A., 1994), Univ. of British Columbia (B.Ed., 1998), son of Pierre Trudeau. He briefly tau...

potentiometer

(Encyclopedia)potentiometer. 1 Manually adjustable, variable, electrical resistor. It has a resistance element that is attached to the circuit by three contacts, or terminals. The ends of the resistance element are...

Purcell, Edward Mills

(Encyclopedia)Purcell, Edward Mills, 1912–97, American physicist, b. Taylorville, Ill., Ph.D. Harvard, 1938. During World War II, Purcell was a researcher at the Massachusetts Institute of Technology Radiation La...

Hertz, Heinrich Rudolf

(Encyclopedia)Hertz, Heinrich Rudolf hĕrts [key], 1857–94, German physicist. He confirmed J. C. Maxwell's electromagnetic theory and in the course of experiments (1886–89) produced and studied electromagnetic...

inductor

(Encyclopedia)inductor, electric device consisting of one or more turns of wire and typically having two terminals. An inductor is usually connected into a circuit in order to raise the inductance to a desired valu...

Stephens, James

(Encyclopedia)Stephens, James, 1882–1950, Irish poet and fiction writer, b. Dublin. One of the leading figures of the Irish literary renaissance, Stephens is best known for his fanciful and highly colored prose w...