Prodigal-Genius-Biography-of-Nikola-Tesla_page_112

Prodigal-Genius-Biography-of-Nikola-Tesla | page 112 | https://thedailydialectics.com/pdfs/tesla/Prodigal-Genius-Biography-of-Nikola-Tesla/Prodigal-Genius-Biography-of-Nikola-Tesla.pdf

I think it may find practical applications in telegraphy. with such a brush it would be possible to send dispatches across the Atlantic, for instance, with any speed, since its sensitiveness may be so great the slightest changes will affect it. The "brush" in Tesla's tube was a beam of electrons.…