>>13933447Consider Permittivity and permeability.
Why do these constants, depending upon the media by which your field is composed, appear within the equations of electrodynamics? Surely there is no aether, surely we accept the double think of having no medium of propagation for a waveform, but than stick medium dependent constants in our equations
What is there relationship with the speed of light?
Now consider, side by side, two mediums of drastically different permittivity and permeabilites. So great in fact, that the speed of light in 1 is 300 000 m/s and the other is only 15 m/s . This is possible without any 'exotic' materials, but merely with a cyrostat and a gas like helium, caesium or the like.
Now consider the lines of gravitation passing through each of those media from the same source. As we know, the speed of gravity matches the speed of light.
If there is a relative difference between the imparting of gravitational force between medium and A and medium B, than, relatively speaking, an anti gravity (or supergravity) is witnissed from the others point of view.
Wrap your self in a medium of such a composition is a good first step. Now, consider what would happen if you were to spin that medium around you. So as to delay the incidence of light upon the core of your ship even greater.
We are now in the dominion of non-linear optics.