Radiation

=**//__Radiators__//**= Radiators are [|heat exchangers] used to transfer [|thermal energy] from one medium to another for the purpose of cooling and heating. The majority of radiators are constructed to function in [|automobiles], [|buildings] , and [|electronics]. The radiator is always a source of heat to its environment, although this may be for either the purpose of [|heating] this environment, or for cooling the fluid or [|coolant] supplied to it, as for [|engine cooling].