How can heat be transferred in an airless space?

Thermal energy from one body to another, in an airless space, is transferred by such a type of heat transfer as radiation.

Radiation is a form of heat transfer in which heat energy is transferred using electromagnetic waves. With this type of heat transfer, the presence of a medium between the bodies is not necessary, it can also occur in a vacuum.

With the help of radiation, bodies not only emit, but also absorb thermal energy.



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