
Prodigal-Genius-Biography-of-Nikola-Tesla | page 93 | https://thedailydialectics.com/pdfs/tesla/Prodigal-Genius-Biography-of-Nikola-Tesla/Prodigal-Genius-Biography-of-Nikola-Tesla.pdf
while the hydraulic tunnel was under construction, the development of polyphase apparatus justified the oficial decision of May 6, 1893, five years and five days after the issuing of Tesla's patents, to use his system. The Polyphase method brought success to the Niagara project; and reciprocally…