The Earth Battery As A Free Energy Generator

If you use larger surface areas and bury the metal deeper so that all the of the surface is making contact... it will increase the voltage dramatically. Also make a 5 gallon bucket of salt water. An entire box of salt to make it strong, and pour around the area where the metal is buried, you will increase the conductivity of the soil.... Also you can drive a nail into a nearby tree and connect to the nail for positive, and the metal buried as negative. The wind blowing through the branches and leaves generates a current down to the roots because of the constant movement of the branches and leaves due to the wind.