I have this research in which I use Rochelle salt to power an urban house. I have an idea to create a ramp on a road where cars may pass that presses springs down attached to a cement/brick that applies pressure to the crystal. The only problem I have now is that I do not know how to harness this electricity. I have been told to use a full-wave rectifier then attach it to a capacitor, but I have no idea how to create a FWR. Can I even use it to create a large-scale power source?

Sorry if I am not knowledgeable about this - all of the explanations on the net are too shallow or too deep. Any help would be appreciated.