heat conduction

Heat conduction or thermal conduction is the spontaneous transfer of thermal energy through matter, from a region of higher temperature to a region of lower temperature, and hence acts to even out temperature differences.The thermal energy, in the form of continuous random motion of the particles of the matter, is transferred by the same forces that act to support the structure of matter, so can be said to move by 'physical' contact between the particles. It should be noted that heat can also be transferred by Thermal radiation and/or convection, and often more than one of these processes occur in a particular situation.
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