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Rayleigh, John William Strutt, 3d Baron

(Encyclopedia)Rayleigh, John William Strutt, 3d Baron rāˈlē [key], 1842–1919, English physicist. He was professor at Cambridge (1879–84) and at the Royal Institution (1887–1905), and chancellor of Cambridg...

acoustics

(Encyclopedia)acoustics əko͞oˈstĭks [key] [Gr.,=the facts about hearing], the science of sound, including its production, propagation, and effects. Various branches of acoustics that deal with different aspects...

Tsiolkovsky, Konstantin Eduardovich

(Encyclopedia)Tsiolkovsky, Konstantin Eduardovich kənstəntyēnˈ ĕdwärˈdəvĭchˈ tsēōlkŏvˈskē [key], 1857–1935, Russian inventor and rocket expert. He lost his hearing in childhood, and, as he could no...

Gallaudet University

(Encyclopedia)Gallaudet University, at Washington, D.C.; coeducational; with federal support. It was founded (1856) as the Kendall School, a training school for deaf and blind students, by Edward Miner Gallaudet (s...

hue and cry

(Encyclopedia)hue and cry, formerly, in English law, pursuit of a criminal immediately after he had committed a felony. Whoever witnessed or discovered the crime was required to raise the hue and cry against the pe...

adenoids

(Encyclopedia)adenoids ădˈənoidzˌ [key], common name for the pharyngeal tonsils, spongy masses of lymphoid tissue that occupy the nasopharynx, the space between the back of the nose and the throat. Normally the...

Cort, Henry

(Encyclopedia)Cort, Henry, 1740–1800, English inventor. He revolutionized the British iron industry with his use of grooved rollers to finish iron, replacing the process of hammering, and through his invention of...

refining

(Encyclopedia)refining, any of various processes for separating impurities from crude or semifinished materials. It includes the finer processes of metallurgy, the fractional distillation of petroleum into its comm...

Norwegian buhund

(Encyclopedia)Norwegian buhund bo͞oˈhŭnd [key], breed of medium-sized working dog developed in Norway. The buhund is a squarely built dog with a wedge-shaped head, erect ears, and a curled tail carried over its ...

Vercingetorix

(Encyclopedia)Vercingetorix vûrˌsĭnjĕtˈərĭks [key], d. 46 b.c., leader of the Gauls, a chieftain of the Arverni. He was the leader of the great revolt against the Romans in 52 b.c. Julius Caesar, upon hearin...