**3. How the gravitational field bends space.**

Consider the motion of photons in the gravitational field of a point body with mass M. the Trajectories of photon motion under the action of gravity of this body will be curved,

and the radius of curvature of the photon trajectory at each point in space will be approximately described by the equation

Now let's consider the movement of photons inside a sphere of transparent dielectric with zero density and variable dielectric and magnetic permeability

In accordance with the law of refraction of light, the trajectories of photons inside this sphere will be curved in the same way,

as in the case of motion in the gravitational field of a point body.

Thus, we can build a model of the interaction of the gravitational field with the electromagnetic field,

in which gravity does not bend space, but changes the dielectric and magnetic permeability of the vacuum,

filling this space according to the equation

This assumption about the change in the dielectric constant of the vacuum by gravity fully corresponds to the hypothesis of Jamie Farnes

that the vacuum of the Universe is filled with electric dipoles with negative mass. After all, the higher the concentration in the area of space

electric dipoles, the higher the dielectric constant in this region..