170 NIKOLA TESLA 



know that when this first work is completed they will follow 

 with mathematical certitude. 



When the great truth accidentally revealed and experi- 

 mentally confirmed is fully recognized, that this planet, with 

 all its appalling immensity, is to electric currents virtually 

 no more than a small metal ball and that by virtue of this fact 

 many possibilities, each baffling imagination and of incalcu- 

 lable consequence, are rendered absolutely sure of accomplish- 

 ment ; when the first plant is inaugurated and it is shown that 

 a telegraphic message, almost as secret and non-interferable 

 as a thought, can be transmitted to any terrestrial distance, 

 the sound of the human voice, with all its intonations and in- 

 flections faithfully and instantly reproduced at any other 

 point of the globe, the energy of a waterfall made available 

 for supplying light, heat or motive power, anywhere — on sea, 

 land, or high in the air — humanity will be like an ant heap 

 stirred up with a stick. See the excitement coming! 



