reversing layer

Mira otros diccionarios:

• reversing layer — noun : the lowest layers of the sun s chromosphere which are perhaps a few hundred miles in depth and in which occurs the absorption that produces most of the dark lines in the solar spectrum; also : a corresponding region in the atmosphere of a… …   Useful english dictionary

• re|vers|ing layer — «rih VUR sihng», the thin innermost layer of the atmosphere of the sun and other stars: »The reversing layer is a mass of vapors, entirely of the earthly elements, that stretches some 1200 miles above the photosphere (Bernhard, Bennett, and Rice) …   Useful english dictionary

• chromosphere — chromospheric /kroh meuh sfer ik, sfear /, adj. /kroh meuh sfear /, n. Astron. 1. a scarlet, gaseous envelope surrounding the sun outside the photosphere, from which enormous quantities of hydrogen and other gases are erupted. 2. a gaseous… …   Universalium

• flash spectrum — noun : a bright line spectrum produced by the sun s reversing layer and observable for a few seconds at the beginning and end of a total solar eclipse * * * Astron. the emission spectrum of the chromosphere of the sun, which dominates the solar… …   Useful english dictionary

• steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …   Universalium

• United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …   Universalium

• environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

• Compact Disc — CD redirects here. For other uses, see CD (disambiguation). Not to be confused with DVD. Compact disc The readable surface of a Compact Disc incl …   Wikipedia

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

• Heat pump — A heat pump is a machine or device that moves heat from one location (the source ) to another location (the sink or heat sink ), using work. Most heat pump technology moves heat from a low temperature heat source to a higher temperature heat sink …   Wikipedia

• Indian Ocean — an ocean S of Asia, E of Africa, and W of Australia. 28,357,000 sq. mi. (73,444,630 sq. km). * * * Indian Ocean Introduction Indian Ocean Background: The Indian Ocean is the third largest of the world s five oceans (after the Pacific Ocean and… …   Universalium