Resonance phenomena at rotations of artificial and natural celestial bodies.

The significance of resonance phenomena in the solar system is examined, taking into account the rotational motion of the planets and the natural satellites of the planets. A description is given of successive developments which led to the creation of a theory for the resonance rotation of celestial bodies. The laws of lunar rotation were discovered by Cassini in 1963. It is pointed out that Cassini's laws are of an empirical nature and do not satisfy the exact equations of motion. The implications of Cassini's laws are investigated, taking into account a generalization of the laws and their application to planetary rotation problems.