Prodigal-Genius-Biography-of-Nikola-Tesla_page_115

Prodigal-Genius-Biography-of-Nikola-Tesla | page 115 | https://thedailydialectics.com/pdfs/tesla/Prodigal-Genius-Biography-of-Nikola-Tesla/Prodigal-Genius-Biography-of-Nikola-Tesla.pdf

whether this be possible or not, and whether the earth contains a charge or not, and whatever may be its period of vibration, it is certainly possible--for of this we have daily evidence--to produce some electrical disturbance suficiently powerful to be perceptible by suitable instruments at any…