抄録
The relativistic theory of heat and temperature is investigated on the stand point of elementary case study and by means of the exact equation of motion of continuous body.
It is shown that a kind of heat conduction between two bodies in relative motion is theoretically possible and the conduction temperature must be a relativistic invariant.
The considerations on the thermodynamical variables in the presence of heat current also lead to the scalar thermodynamics, where the invariance of the thermodynamical temperature is shown in the same meaning as the invariance of the nonrelativistic temperature.