Below is a great read i found on another website about Tesla’s system for transmitting electricity by disturbed ground and air method. If you like Tesla’s work then have a read of this.
Sept 1999 by William Beaty
While experimenting with a long, thin Secondary coil from Tesla Coil, I suddenly connected up several things in my mind which had been separate up to that moment. After years of messing with Tesla Coils, I finally see what Tesla was up to with single wire transmission, with resonant coils, and with longitudinal waves. See if the following doesn’t make sense.