Force Acting on a Slow-Moving Mass

The force is any, which acts on the mass. It acts, by changing its motion. The first formulation is in the equation of Newton (the change of the momentum with time), and in the second formulation, the mass is taken as constant and extracted from the differential. 

In the field of gravity, the mass takes up energy when it changes its height in positive direction, so 

In vacuum actually only this happens, although this is actually incomprehensible. A volume of the ether is moved to the place of the mass, which shifted in the medium. Obviously, the vacuum does not have mass. On the other hand, the vacuum has nevertheless electrical characteristics, in addition, characteristics, which permit a transmission to the gravitation as field effect. The concept must be wrong thus eo ipso. 

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