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interval
(Encyclopedia)interval, in music, the difference in pitch between two tones. Intervals may be measured acoustically in terms of their vibration numbers. They are more generally named according to the number of step...Bunsen burner
(Encyclopedia)Bunsen burner, gas burner, commonly used in scientific laboratories, consisting essentially of a hollow tube which is fitted vertically around the flame and which has an opening at the base to admit a...Carnot, Nicolas Léonard Sadi
(Encyclopedia)Carnot, Nicolas Léonard Sadi kärnōˈ [key], 1796–1832, French physicist, a founder of modern thermodynamics; son of Lazare N. M. Carnot. His famous work on the motive power of heat (Réflexions ...Osheroff, Douglas Dean
(Encyclopedia)Osheroff, Douglas Dean, 1945–, American physicist, b. Aberdeen, Wash., Ph.D. Cornell, 1973. He was a professor at Cornell from 1973 to 1987, when he joined the faculty at Stanford. Osheroff was also...frost
(Encyclopedia)frost or hoarfrost, ice formed by the condensation of atmospheric water vapor on a surface when the temperature of the surface is below 32℉ (0℃). In the formation of frost, a gas (water vapor) is ...hibernation
(Encyclopedia)hibernation hīˌbərnāˈshən [key] [Lat.,= wintering], practice, among certain animals, of spending part of the cold season in a more or less dormant state, apparently as protection from cold when ...Partch, Harry
(Encyclopedia)Partch, Harry, 1901–74, American composer, b. Oakland, Calif. Highly individualistic and largely self-taught, Partch rejected many of the traditions of Western music. He developed a theory of “cor...viscosity
(Encyclopedia)viscosity, resistance of a fluid to flow. This resistance acts against the motion of any solid object through the fluid and also against motion of the fluid itself past stationary obstacles. Viscosity...ventilation
(Encyclopedia)ventilation, process of supplying fresh air to an enclosed space and removing from it air contaminated by odors, gases, or smoke. Proper ventilation requires also that there be a movement or circulati...calendering
(Encyclopedia)calendering, a finishing process by which paper, plastics, rubber, or textiles are pressed into sheets and smoothed, glazed, polished, or given a moiré or embossed surface. The material is passed thr...Browse by Subject
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