In some electromechanical systems electrically charged rotor is used to create propulsion force. Quite old idea is to use diamagnetic vapor that is accelerating in the permanent magnet field. High electric potential systems are known by Tesla and T.T.Brown research work. The asymmetry lead to centrifugal force gradient and non-zero linear component of this force. There are some research program on superconductivity gravitation connection.
Special case is thermo-gravitation propulsion technologies.
Fig.1.1 show plan for experiment that was described by Alexander Shegolev, Russia as weight changes in heated metal ball if in the top of the ball the cone part was removed to create non-zero total heat flow of this mass. It is known that interaction between atom or molecule and space-time demonstrated as chaotic oscillations or movements those are considered as heat processes in matter. One of many versions for it is the cooling of the flow by means of special vortex process. Like for Fig.1.1 the active force is result of non-zero vector sum for heat processes of each particle of the matter. To continue we have to make some supposition about the nature of the heat energy.