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NIKOLA TESLA ON HIS WORK WITH ALTERNATING CURRENTS
and Their Application to Wireless Telegraphy, Telephony and Transmission of Power : An Extended Interview
ISBN: 1-893817-01-6

Tesla Presents Series, Part 1

 

Leland I. Anderson, Editor

Copyright ó 1993, 21st Century Books.  All rights reserved.

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 Appendix II.

Tesla's description of Long Island plant and inventory of the installation
as reported in 1922 foreclosure appeal proceedings.

 
















177

               Nikola Tesla for DefendantóDirect.               

A. Yes. You see the underground work is one of the most expensive parts of the tower.  In this system that I have invented it is necessary for the machine to get a grip of the earth, otherwise it cannot shake the earth.  It has to have a grip on the earth so that the whole of this globe can quiver, and to do that it is necessary to carry out a very expensive construction.  I had in fact invented special machines.  But I want to say this underground work belongs to the tower.

By Mr. Hawkins :

Q. Anything that was there, tell us about.

A. There was, as your Honor states, a big shaft about ten by twelve feet goes down about one hundred and twenty feet and this was first covered with timber and the inside with steel and in the center of this there was a winding stairs going down and in the center of the stairs there was a big shaft again through which the current was to pass, and this shaft was so figured in order to tell exactly where the nodal point is, so that I could calculate every point of distance.  For instance I could calculate exactly the size of the earth or the diameter of the earth and measure it exactly within four feet with that machine.

Q. And that was a necessary appurtenance to your tower?

A. Absolutely necessary. And then the real expensive work was to connect that central part with the earth, and there I had special machines rigged up which would push the iron pipe, one length after another, and I pushed these iron pipes, I think sixteen of them, three hundred feet, and then the current through these pipes takes hold of the earth.  Now that was a very expensive part of the work, but it does not show on the tower, but it belongs to the tower.
































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