This diagram above may be the answer to free energy , that we have all be looking for and an explanation as to how the Ed Gray Device may have workedAnd thanks to Peter Lindemann DSc, and his patent search into additional material of Ed Gray
Infographic: ElectricityA visual cheat sheet about electrical physics, containing the most important formulas of current and Ohm’s law expressed through an impossible water circuit analogy.(by Pierluigi Scotolati)
A radio that doesn't need a battery or plug? In the "Build Your Own Crystal Radio" electricity and project students build a working crystal radio and investigate how to improve it. A convenient project kit is available to do this science project!