Re: Wireless Power Transmission

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Ed Phillips <evp@xxxxxxxxxxx>

Original poster: SCOTT EWING <scottewing@xxxxxxxxxxxxx>

Myself, I don't think so. I belive Tesla coils, properly tuned, are 
resonant to the earths natural frequency7.83Hz.

Tesla list <tesla@xxxxxxxxxx> wrote:
Original poster: "David Thomson"

Hi Ed,

> No power transmission though - all his work obeyed the laws of nature.

So here we get to the crux of the matter. Is it your opinion that wireless
power transmission violates the laws of nature?

Dave"

Scott:

   Do you have any idea at all of what a Tesla coil designed for a 
resonant frequency of 7.83 Hz would look like?  If the secondary 
obeyed the Tesla's "1/4 wavelength" rule the wire length would need 
to be almost 5948 statute miles!  Take any coil diameter and length 
you want [or consider reasonable] and calculate the wire diameter 
needed to fit those dimensions.  Interesting excercise!  If I didn't 
slip a few decimal points I calculated the wire size for a coil 100 
feet in diameter and 500 feet high, about the limit one would want in 
the back yard.  It turns out to be 0.00125 inches.  The smallest wire 
in my wire table is #46 B&S and it has a diameter of 0.0015 
inches.  The resistance is 4.61 ohms per foot or 24, 340 ohms per 
mile.  I calculate the secondary resistance as almost 145 
megohms.  How does that sound as the receiver (or transmitter) for a 
wireless power transmission system?

Ed