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Prince William Sound
(Encyclopedia)Prince William Sound, large, irregular, islanded inlet of the Gulf of Alaska, S Alaska, E of the Kenai peninsula. It has many bays and good harbors; the large Columbia Glacier flows into Columbia Bay,...Croatoan
(Encyclopedia)Croatoan, unexplained letters found (1590) carved on a tree on Roanoke Island off North Carolina by Gov. John White when he returned to the colony from England and discovered the colonists gone. White...audio frequency
(Encyclopedia)audio frequency: see sound; radio. ...record player
(Encyclopedia)record player or phonograph, device for reproducing sound that has been recorded as a spiral, undulating groove on a disk. This disk is known as a phonograph record, or simply a record (see sound reco...R
(Encyclopedia)R, 18th letter of the alphabet, corresponding to Greek rho. When in Latin alphabets the letters for p and r became similar in appearance, the rho form (P; which at first was used for the r sound) was ...loudspeaker
(Encyclopedia) CE5 Electrodynamic loudspeaker loudspeaker or speaker, device used to convert electrical energy into sound. It consists essentially of a thin flexible sheet called a diaphragm that is made to vibr...phonetics
(Encyclopedia)phonetics fōnĕtˈĭks, fə– [key], study of the sounds of languages from three basic points of view. Phonetics studies speech sounds according to their production in the vocal organs (articulatory...Seward Peninsula
(Encyclopedia)Seward Peninsula, W Alaska, projecting c.200 mi (320 km) into the Bering Sea between Norton Sound and Kotzebue Sound, just below the Arctic Circle. The region is mostly bleak tundra, with long, cold w...Dolby, Ray Milton
(Encyclopedia)Dolby, Ray Milton, 1933–2013, American inventor, audio engineer, and corporate executive, B.S. Stanford, 1957, Ph.D. Cambridge, 1961. While a teenager, he worked for Ampex Corp. (1949–57), helping...shock wave
(Encyclopedia)shock wave, wave formed of a zone of extremely high pressure within a fluid, especially the atmosphere, that propagates through the fluid at a speed in excess of the speed of sound. A shock wave is ca...Browse by Subject
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