Prodigal-Genius-Biography-of-Nikola-Tesla_page_142

Prodigal-Genius-Biography-of-Nikola-Tesla | page 142 | https://thedailydialectics.com/pdfs/tesla/Prodigal-Genius-Biography-of-Nikola-Tesla/Prodigal-Genius-Biography-of-Nikola-Tesla.pdf

oscillator was firmly fixed to a supporting column and there were similar supporting columns directly under it on each floor down to the foundations. The vibrations were transmitted through the columns to the ground. This section of the city is built on deep sand that extends down some hundreds of…