I&#x27;m taking this with a grain of salt.  It&#x27;s popular for fringe scientists to assert that gravity can be controlled via electromagnetism.  I&#x27;ve seen a couple UFO schematics online over the years that use electromagnetism to play with gravity and produce thrust.<p>Also, my understanding of gravity is that it really isn&#x27;t a force at all, but rather a warping of spacetime by an object with mass, which makes the concepts of a field a bit strange to me...