This publication concerns the fundamentals of the dynamics of masses interacting by gravitation. We start with the Maxwell Analogy for Gravitation (or the “Heaviside field”), and we develop a model. This model of dynamics, allow us to quantify the transfer of angular movement point by point by the means of vectors, and to bring a simple, precise and detailed explanation to a large number of cosmic phenomena. And to all appearances, the theory completes gravitation into a wave theory. With this model the flatness of our solar system and our Milky way can be explained as being caused by an angular collapse of the original orbits, creating so a density increase of the disc. Also the halo is explained. The “missing mass” (dark matter) problem is solved, and without harming the Keplerian motion law. The theory also explains the deviation of mass like in the double-lobed shape of rotary supernova having mass losses, and it defines the angle of mass losses at 0? and under 35?16′. Some quantitative calculations describe in detail the relativistic attraction forces maintaining entire the fast rotating stars, the tendency of distortion toward a toroid-like shape, and the description of the attraction fields outside of a rotary black hole. Qualitative considerations on the binary pulsars show the process of cannibalization, with the repulsion of the mass at the poles and to the equator, and this could also explain the origin of the spin-up and the spin-down process. The bursts of collapsing rotary stars are explained as well. The conditions for the repulsion of masses are also explained, caused by important velocity differences between masses. Orbit chaos is better explained as well. Finally, the demonstration is made that gyrotation is related to the Relativity Theory.
Keywords: gravity, star: rotary, disc galaxies, gravity repulsion, relativity, gyrotation, gravitomagnetism, chaos, Heaviside field, Lorentz force, angular momentum, binary star