Superposition of forward and backward motion

Abstract I consider black body radiation. The wall of the black body exchanges photons with the radiation field in equilibrium, therefore with a common temperature in Planck’s radiation law. The underlying process of radiation consists of creation and annihilation of photons. I want to present an alternate model of motions, where the process of radiation consists of small steps in positive and negative direction, not zero in mean. The detection of radiation consists of storing and restoring of packages of energy. I get an analogue of Planck’s radiation law, where the common temperature emerges from the underlying common model of small steps. The object of the law is not the radiation, but a storage of packages of energy, which belongs to the wall of the black body.