Abstract
This work is a brief communication where there are all situations explained of the magnetic-dynamic auto-equilibrium of the spin of all particles, in the atom and nucleus, including the case that the same is in rest state occupying a inter-molecular interstice. As consequence, the carried out analysis it’s solved for the first time, the mathematical correlation of the constant of Planck with a quantum unitary physical phenomenon and the theoretical relationship to each other of all physical constants.