Gravity has no influence on the uniform expansion speeds of the galaxies

The gravity does not influence the uniform velocities of the expansion of galaxies

The gravity works in an analogous way to the light, and it has as mediating particle of the gravity, the energétron, that is equivalent to photon. Every visible universe is composed of those galaxies that move away from the observer that is in the center, with velocities lower than c. These same galaxies are the only one that exert gravitational influence on the galaxy that is located in the center, because the energétrons emitted by galaxies that move away with velocities bigger than c are influenced by those velocities and they will never reach the central galaxy, thus they will not exert on it any gravitational force. It means that a visible universe is also the universe of gravitational influence.

The visible universe is a sphere with the galaxy of its observer in the center. If we divide this sphere in two parts, due to the uniform density of the universe in macro-scale, each one of these parts will have equal masses with their center of mass symmetric in relation to the center of sphere.

Then, the gravitational influence of one part will compensate the other one, knowing that the resultant of all gravitational force which came from the universe with this spheric symmetry is zero. Thus, according to the first Newton’s law, if the resultant of the forces act on a body (a galaxy) is null, this body (galaxy) is stopped or in an uniform rectilinear motion (URM)

Finally, we conclude that, as the universe is expanding, it means that the galaxy is not stopped, but in an uniform rectilinear motion. Thus, it is proved that the gravitational influence on any chosen galaxy is the one exerted by its visible universe, such being that the resultant of these forces is always null. It means that all galaxies will always have uniform velocities acquired in Big Bang.