hmm... i believe that for long distances, tesla planned to use the conductivity of the earth itself, because of it's low impedance, to send AC current to any po

hmm... i believe that for long distances, tesla planned to use the conductivity of the earth itself, because of it's low impedance, to send AC current to any point on the plannet's surface (http://www.google.com/patents/US1119732?printsec=abstract http://www.google.com/patents/US1119732?printsec=abstract). for short distances, air transmission was possible, but there is strong drop-off in efficiency because of air being an insulator (https://www.google.com/patents/US645576?printsec=abstract https://www.google.com/patents/US645576?printsec=abstract). also, people do consider his work "workable:" http://web.mit.edu/newsoffice/2010/wireless-power-0409 http://web.mit.edu/newsoffice/2010/wireless-power-0409 the rumor is that tesla intentionally left out key details in his patents to keep from dangerous tech being in the wrong hands, while maintaining the rights to the tech. so, we aren't even able to reproduce tesla's levels of efficiency or distance without re-discovering certain aspects... but to say that physicists consider his concepts unworkable is false. edit: typo