  The earlier paper, Inertial Mass, Its Mechanics - What It Is; How It
Operates, developed the mechanics of inertial mass. The present paper is for
the purpose of equivalently developing gravitation.
  The behavior of gravitation is well known, as described by Newton's Law of
Gravitation. But just what gravitational mass is, how gravitational behavior
comes about, what in material reality produces the effects of gravitational
mass, has been little understood. The only extant hypotheses involve the
unsuccessful efforts to develop "quantum gravitation" and to tie it into the
rest of quantum mechanics, and the equally failed attempts to detect
"gravitons" and "gravitational waves" in spite of very substantial efforts.
  From a starting point of only the limitation on the speed of light, the
necessity of conservation, and the impossibility of an infinity in material
reality, the present paper presents a new and comprehensive analysis of the
phenomenon gravitational mass:
  - how it appears in particles,
  - how the Newtonian gravitational behavior arises from that, and
  - how the values of inertial mass and gravitational mass are identical, or,
in other words, the mechanics of gravitational mass and gravitation.
