The attraction of gravitation and the repulsion of radiation is nature's simple method of distribution and redistribution of all masses, so that each mass will find its proper position. [See Universal Heart Beat]
It is not proper to conceive either of these apparently opposite forces as two forces.
The south wind and the north wind are not two winds. They are the same wind blowing in opposite directions.
It is more correct to say that gravitation and radiation are processes.
The unequal divisions of the two opposites totaled together constitute an equilibrium.
The chemist uses these processes in every action and reaction.
What happens? The hydrogen falls toward the higher potential of the oxygen of the iron which is sufficiently expanded by the high temperature to absorb the hydrogen, and the hot iron is sufficiently expanded to release the oxygen.
Analytic Study of Harmonic Intervals
Finite Element Analysis