Applying the continuum mechanics of space to General Relativity, the mechanism of gravity has shown as one possibility. Given a priori assumption that space as a vacuum has a physical fine structure like continuum, it enables us to apply a continuum mechanics to the so-called 'vacuum' of space. In this paper, curved space, or curvature of space, is purely mathematical geometric quantities, but with the help of continuum mechanics, it is shown that they are related to actual forces. are not well explained the explanation of reason is insufficient why the force of gravity is generated when the space curves. General Relativity expresses the phenomenon of gravity very strictly, but its origin and generation mechanism of the force of gravity. Today, Einstein explained the phenomenon of gravity that the curved space was gravity. Comment: 16 pages, 3 figures, great changes made for gravitational vector potential, gravitational radiation, etc Read moreįrom ancient Greece to modern times, philosophers and scientists have developed a history of thought processes that seek to find the cause of gravity that causes objects to fall. The apsidal motion of binary system and the expansion of the universe can be explained more reasonably when observed from their respective inertial frames of center of mass than that from relative motions. This is because Newton's laws of motion only hold for inertial frames. Although inertial and non-inertial frames are equally valid in describing the motion of bodies in gravitational field, we regard inertial frame as the preferred frame of reference. The gravitational vector potential produced by a moving gravitational source can be obtained by applying Lorentz transformations in local gravitational field. The metric thus obtained has no gravitational radius and agrees with Schwarzschild metric in first order approximation. inertial frame of reference at infinity based on the influence of gravitational field on the light. We then modify the standards of space-time in local gravitational field to keep them consistent with the standards in. We first derive the mass variation of a body falling freely in static gravitational field based on the principle of equivalence and the mass-energy relation. We suggest a Lorentz-covariant theory of gravity that is equivalent to general relativity in weak gravitational field. Theory because the wave form of the scalar gravitational wave greatly depends Information of the first derivative of the coupling function contained in the In the scalar-tensor theories, it would be possible to get the Possible to determine the initial radius and mass and a parameter contained in Theory, through the observation of the scalar gravitational wave, it is Mass of the dust and parameters contained in the theory. and examine how the amplitude, characteristic frequency and waveįorm of the observed scalar gravitational wave depend on the initial radius and Wave from a spherically symmetric and homogeneous dust collapse under theĪpproximation that we can neglect the back reaction of the scalar wave on the We solve numerically the generation and propagation of the scalar gravitational Gravitational waves even from a spherically symmetric gravitational collapse. Unlike general relativity, scalar-tensor theories of gravity predict scalar

General Relativity expresses the phenomenon of gravity very strictly, but its origin and generation mechanism of the force of gravity are not well explained the explanation of reason is insufficient why the force of gravity is generated when the space curves. From ancient Greece to modern times, philosophers and scientists have developed a history of thought processes that seek to find the cause of gravity that causes objects to fall.

The curved space