What is the process of heat transfer through electromagnetic waves called?

The process of heat transfer through electromagnetic waves is known as radiation. This mechanism does not require a medium, meaning it can occur in a vacuum, and it is the method by which energy from the sun reaches the Earth. Meanwhile, radiation differs from conduction and convection; conduction involves the transfer of heat through direct contact between materials, while convection involves the movement of heat through fluids (liquids and gases) as the warmer portions rise and cooler portions sink. Insulation, on the other hand, refers to materials or techniques used to slow down heat transfer rather than the process itself. In the context of thermal dynamics and fire investigations, understanding radiation is essential, as it plays a significant role in the spread of fire and heat in various environments.