The kook Tom Bearden and his energy from the vaccum is along the same lines.
Amazingly, he stuck a couple wires into some flour dough colored with food coloring and managed to sucker a few million dollars from people.
Even funnier; he managed to have some of his "work" published in a journal of science. LMAO!! It's still there, those nonsensical equations of a nut bar! How embarrassing to "science" that is.