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convection currents

См. также в других словарях:

  • Global Convection Currents — are one of the many forms of convection here on Earth, they are a form of small to high speed winds. These winds can be anything from a few knots to winds in the 80 100 knot range. These winds are caused by natural convection currents. These… …   Wikipedia

  • Convection — This figure shows a calculation for thermal convection in the Earth s mantle. Colors closer to red are hot areas and colors closer to blue are cold areas. A hot, less dense lower boundary layer sends plumes of hot material upwards, and likewise,… …   Wikipedia

  • convection — convectional, adj. /keuhn vek sheuhn/, n. 1. Physics. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas. 2. Meteorol. the vertical transport of atmospheric properties, esp. upward (distinguished from… …   Universalium

  • Convection heater — A convection heater is a heater which operates by air convection currents circulating through the body of the appliance, and across its heating element. This heats up the air, causing it to increase in volume and so become buoyant and rise. Oil… …   Wikipedia

  • convection — [[t]kənve̱kʃ(ə)n[/t]] N UNCOUNT Convection is the process by which heat travels through air, water, and other gases and liquids. [TECHNICAL] ...clouds which lift warm, moist air by convection high into the atmosphere. ...convection currents …   English dictionary

  • convection oven — /kənˈvɛkʃən ʌvən/ (say kuhn vekshuhn uvuhn) noun the traditional style of oven in which heat from a source is moved by convection currents around the oven …  

  • Convection — Con*vec tion, n. [L. convectio, fr. convehere to bring together; con + vehere to carry.] 1. The act or process of conveying or transmitting. [1913 Webster] 2. (Physics) A process of transfer or transmission, as of heat or electricity, by means of …   The Collaborative International Dictionary of English

  • convection — noun /kənˈvɛkʃən/ a) The process of conveying something. b) The transmission of heat in a fluid or gas by the circulation of currents …   Wiktionary

  • convection — rising warm air and falling cool air. The transfer of energy by moving currents of fluid or gas containing energy …   Mechanics glossary

  • Convection —   The transfer of heat by means of air currents.   ***   Transferring heat by moving air, or transferring heat by means of upward motion of particles of liquid or gas heat from beneath.   California Energy Comission. Dictionary of Energy Terms …   Energy terms

  • Mantle convection — Earth cross section showing location of upper and lower mantle …   Wikipedia

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