Moderator's note: This thread is the result of merging two similar threads by the same thread starter. Hello everyone! I have some ideas on how to build an anti-gravity toy and like to share with you. If it's realizable, perhaps you can build one. This system includes a large aluminum plate and a disk shaped craft. The craft has at least three solenoids underneath, powered by a central power unit located in the center of the craft. When the solenoids are activated with a pulsed current, Eddy currents are generated on the metallic plate, which produce counter magnetic fields which oppose to that of the craft. The result, I think, is a hovering disk on the plate. There may be more than three solenoids. The only problem is that this system requires a metallic to surface to hover. Fig. 1. Fig. 2. Circuit is in the craft. So what do you think? Is it possible to make things hover on metallic surfaces using this technique?