christopher wrote:

snip
Didn't Tesla propose using DC current, basically broadcast/produced from
thousands of transmitters. In order to use the electrical current/field,
all one had to do was ground one side/wire to Earth. The other side or
wire would be the receptor/antenna for lack of a better term.

FWIW, the Wikipedia article:
http://en.wikipedia.org/wiki/Wireless_energy_transfer
describes some of Tesla's ideas and also has a list of references to more
recent wireless energy distribution schemes.

Michael