I know the following statement to be true, being proven both mathematically, and verified by astronomical observations. What I need help understanding is HOW. . . "The law of Conservation of Angular Momentum requires that the slowing down of the rotation of the Earth around its axis caused by tidal friction must result in an equal increase of angular momentum of the Moon in its orbital motion around the Earth. . . [this] must result in the increase of its distance from the Earth and the decrease of its linear velocity." George Gammow, Gravity. Here's the question: How is the impact of tidal friction on the Earth COMMUNICATED to the Moon? By what force is the change in angular momentum of the Earth communiated to the Moon, thus affecting it's angular momentum? Gravity? If so, how? If by some supernatural occurance, the Earth suddenly stopped spinning entirely, can I assume that the Moon would immediately move rapidly farther away in its orbit? If so, why? how? what would "push" it away? Would the gravitational attraction to the Earth somehow lessen ? Thanks for any explanations in as laymen of terms as possible to a former student of first year physics only.