From the equations of the ehter deduced on the basis of laws of classical mechanics, values of power levels of the basic and excited states of atom of hydrogen, corresponding to well-known experimental values, are obtained. It is shown, why and how the atom of hydrogen in the excited state is capable to absorb and radiate photons, and in the basic state - only to absorb. It is proved, that except for the basic and the excited states the atom of hydrogen can be in hydrino not radiating states that is not described by the Schrodinger equation. It is proved, that transition of atom of hydrogen into hydrino state should be accompanied by liberation of a significant amount of energy. The hypothesis about hydrino state of a dark matter in the Universe is theoretically confirmed.

Keywords: ether, excited and hydrino states of atom of hydrogen.