In this short message I will limit myself to presenting some initial provisions and the main conclusions of my work (see article). When considering the thermal state of a piece of solid matter (for example, a piece of gold), it is therefore necessary to take into account three surfaces: 1. An outer surface that separates a piece of solid matter from the surrounding space. 2. The inner surface of contact of the crystal grains that make up the piece. 3. The total, internal dynamic (pulsating) surface of crystalline grains.