N. LEVASHOV'S «SVETL BROOM» IN A. KHATYBOV'S «BATH SCHOOL» AND A LABOUR SPADE. BOOK 4. THE PHYSICS OF THE REALITIES

Book 4. The Physics of the Realities. Chapter 6. Reflection in the future time... 322 Dj =4 p G µ , (5) where µ is the mass density of the source of the gravitational field; D = ⁄ + + ⁄ ⁄ is the Laplace operator. The gravitational field created by the central-symmetric mass distribution outside this distribution coincides with the field of the point mass equal to the total mass M of the object and located at the center of symmetry: = − BC D (6) Since force F acting on the test body is proportional to its mass, the acceleration acquired by the body depends only on the gravitational potential: a=-grad j , (7) that is, bodies of different masses move in the gravitational field along identical trajectories with the coincidence of the initial conditions . Thus, this conclusion about the equality of inertial and gravitational masses with high accuracy confirmed experimentally lies at the basis of the relativistic 62 theory of gravitation. The law of universal gravitation in the context of the general theory of relativity should be understood as a property of universality of gravitational interaction, expressed in the fact that the constant of interaction of the gravitational field with all physical fields (including gravitational field) is the same. This leads to the possibility of a complete geometrization of the theory, in which the action of the gravitational field is actually replaced by the effect of space-time geometry on matter, and the components of the metric tensor of the corresponding pseudo-Riemannian 63 space-time play the role of the gravitational potential. 62 Relativism (from Latin relativus – relative) is a methodological principle, consisting in the metaphysical absolutism of the relativity and conventionality of the content of knowledge. Relativism comes from the one-sided underscoring of the constant variability of reality and the negation of the relative stability of things and phenomena. The fact of the development of knowledge, in the course of which any level of knowledge is overcome, relativists are regarded as evidence of its untruth, subjectivity, which leads to the denial of the objectivity of cognition in general. Relativistic mechanics is a branch of physics that considers the laws of mechanics (the laws of motion of bodies and particles) at speeds comparable to the speed of light. At speed much lower than the speed of light, it goes over into classical (Newton mechanics 63 Actually pseudo-Riemannian metric tensor (or indefinite metric), when the form is not sign- definite. A manifold with a distinguished pseudo-Riemannian metric tensor is called a (proper) pseudo- Riemannian