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[–] 11896267? 1 point 0 points (+1|-1) ago  (edited ago)

Please google it.

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[–] Melissus ago 

google it

not arguing techniqe for 5 year olds

I did and no one has a definite answer that is plausible in physical terms,hence the question.You cant use radiators because there is no medium to convey the heat and you cant transfer heat into other wavelenghts without producing even more heat so microwave radiators and alike are too out of question.Then you could circulate water in a heatpipe and when the water is hot just dump the water, but that is more than likely out of question for a car.

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[–] 11898178? 0 points 1 point (+1|-0) ago 

Please come on! You can't get it any more simpler.

https://en.wikipedia.org/wiki/Heat_transfer

Thermal radiation occurs through a vacuum or any transparent medium (solid or fluid). It is the transfer of energy by means of photons in electromagnetic waves governed by the same laws.

Thermal radiation is energy emitted by matter as electromagnetic waves, due to the pool of thermal energy in all matter with a temperature above absolute zero. Thermal radiation propagates without the presence of matter through the vacuum of space.[14]

https://en.wikipedia.org/wiki/Black-body_radiation

Black-body radiation is the thermal electromagnetic radiation within or surrounding a body in thermodynamic equilibrium with its environment, or emitted by a black body (an opaque and non-reflective body). It has a specific spectrum and intensity that depends only on the body's temperature, which is assumed for the sake of calculations and theory to be uniform and constant.