There are always some " occult" ideas out there. I've mentioned Vassilatos's book" secrets of cold war technology", and still recommend it, however he does paraphrase himself alot, repeats what he's just said a paragraph or two before, and keeps a mystery around things. In regard to Nicola Tesla, vassilatos mentions he broadcasted the aether to wirelessly run his motors. He mentions how Tesla had ballons adrift which were connected to his coil apparatus (i.e. terminals) and how motors he had in the park turned wirelessly. He noted that the motors had more power when connected to the ground. Now through this Vassilatos keeps mentioning the aether &quotfor almost everything&quot.