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Audio equipment
Any device, electrical or otherwise, designed to reproduce, record or process sound.
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British thermal unit (BTU)
Energy; Geothermal
The quantity of heat required to raise the temperature of one pound of water one degree Fahrenheit at standard conditions. (Equal to 252 calories.)
carbon emission reduction scheme
Energy; Geothermal
A method such as a carbon tax or carbon trading scheme that reduces emissions of carbon (and often other greenhouse gases). A carbon tax is a tax imposed on the production or use ...
cascading heat
Energy; Geothermal
A process that uses a stream of geothermal hot water or steam to perform successive tasks requiring lower and lower temperatures.
efficiency
Energy; Geothermal
The ratio of the useful energy output of a machine or other energy-converting plant to the energy input.
electromagnetic induction
Energy; Geothermal
The production of electrical current in a conductor due to a changing magnetic field (moving magnet) or to the movement of a conductor through a magnetic field.
