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seismology

(Encyclopedia)seismology sīzmŏlˈəjē, sīs– [key], scientific study of earthquakes and related phenomena, including the propagation of waves and shocks on or within the earth by natural or artificially genera...

musical instruments

(Encyclopedia)musical instruments are classified in various ways, but the system devised in 1914 by Kurt Sachs and E. M. von Hornbostel has been accorded recognition by both anthropologists and musicologists becaus...

Loyola University

(Encyclopedia)Loyola University loi-ōˈlə [key], at New Orleans, La.; Jesuit; coeducational. The university was established through a merger in 1911 of the College of the Immaculate Conception (opened 1849) and L...

Saint Louis University

(Encyclopedia)Saint Louis University, mainly at St. Louis, Mo.; Jesuit; coeducational; opened 1818 as an academy, became a college 1820, chartered as a university 1832. Parks College (est. 1927 as Parks College of ...

Aki, Keiiti

(Encyclopedia)Aki, Keiiti, 1930–2005, American seismologist, b. Yokohama, Japan, Ph.D. Univ. of Tokyo, 1958. Associated with the Univ. of Tokyo 's Earthquake Research Institute from 1963, Aki joined the faculty o...

Winthrop, John, 1714–79, American scientist

(Encyclopedia)Winthrop, John, 1714–79, American scientist, b. Boston, Mass., grad. Harvard, 1732. Because of his study of earthquakes, he is sometimes called the founder of seismology. He made scientific observat...

Milne, John

(Encyclopedia)Milne, John, 1850–1913, British seismologist, b. Liverpool, educated at King's College and the Royal School of Mines. He worked as a mining engineer in Newfoundland and Labrador and served (1874) as...

Dutton, Clarence Edward

(Encyclopedia)Dutton, Clarence Edward, 1841–1912, American geologist, b. Wallingford, Conn., grad. Yale, 1860. After service in the army during and after the Civil War, he was a member (1875–91) of the U.S. Geo...

avionics

(Encyclopedia)avionics āˌvēŏnˈĭks [key], electronic instruments used in air or space flight; also the design and production of such instruments. Early planes had few instruments, but as aviation and aircraft ...

bull-roarer

(Encyclopedia)bull-roarer, an instrument consisting of slit board or chamber attached to a cord. When swung around in the air, it emits a deep, vibrant, “whirrrrrr”-like sound. The mythology of some Native Sout...