The Gravity Gate Experiment
Its simplistic form utilises a copper disk, attached to a conventional motor , spinning between the poles of two diametrically opposed horseshoe magnets. These magnets induce a heavy D.C. current to flow within the disk forming a field opposing that of the magnets inducing it. The low voltage high D.C. current is collected, by brushes, between its periphery (-) and its axis (+).
It appears that spinning self inducing disks ( by taking the high current output from the disk and feeding it into the coils) produce some rather amazing affects by breaking down the homogeneous either around about the disk. [rather like a mini-black hole ].
This in its simplistic form is what some of repute call a "gravity gate". Initially it takes a lot of mechanical power to achieve the necessary r.p.m. until resonating at its self perpetuating stage where the phenomena take effect. Experiment with both copper and steel disks with short slots cut in the disk to limit back e.m.f. Also try a two disk perspex Wimshurst configuration with the coils being energised by the static magnetism on the conducting plates. Go as far as you can see and when you get there you will see farther.