Parametric "amplification" of energy on capacitors Hello. My last post was about how geometry affected potential and electric energy transfers. Some people send me interesting information about that, and i've been thinking about parametric power conversion. We usually relate E to a variation of Q on a fixed geometry (parameters, like R, C or L), but it's also true that we can obtain E from fixed Q and variation of the parameters (thus geometry). If you've got a charged capacitor, the electric energy stored on it is different if you move one plate, or change the surface, or change the dielectric, etc... But this changes takes the same energy as the energy change they cause. But imagine two charged capacitors. Connecting them in series is the same as having one capacitor half of each one, and connecting them in parallel is the same as having one double of each one. So we can obtain a factor of 4 on the amount of energy stored only changing connections (with interruptors or transistors), needing almost no energy to do so. Now take a look at this page, where i talk about this case: www.geocities.com/k_pullo/cyd.htm The experiment was made with an electronics simulator based on SPICE. All of you helps me a lot to understand what concepts sound interesting and what others sounds suspicious, so thanks for your answers about this system and my thoughts.