Re: 7.1Hz, how the heck did Tesla succeed?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: William Beaty <billb@xxxxxxxxxx>

On Sun, 17 Jul 2005, Tesla list wrote:

> Original poster: Ed Phillips <evp@xxxxxxxxxxx>

> The first step in the design process is to calculate the
> power involved in maintaining the upper strata at a voltage of 15
> million with respect to earth.  Let's start a series of calculations.
>
> 1. The conductors are two spherical shells separated by a distance of a
> number of miles.  These dimensions produce the capacitance at the
> transmitting terminal across which the high voltage is to be generated
> can be calculated as follows:

You're assuming a pure capacitance, i.e. no earth resonance, like
transmitting a frequency far from any of the earth's resonance spikes.

But as with any resonantor, at resonance there is an inductor which
cancels out the capacitive reactance.   In that case knowledge of Q is
critical.  With immense Q the system could use a tiny contiuing input to
build up immense voltages.   But if Q is really low, then there are no
narrow resonance lines, and the earth acts like a capacitance as you say.


> c. Figure out how to keep both the transmitter and the receivers "in
> synchronism" as the height of the upper atmosphere (and hence the
> capacitance of the transmission line) varies with fluctuations in the
> height due to variations in the intensity of solar radiation.

THAT'S a really serious problem, along with small antenna impedance
problem. Maybe Tesla had a way to synch the transmitter, so he could pump
up the earth resonance despite wandering frequency.  But all the receivers
all over the earth would need to follow that changing frequency too.



> f. Figure out how to bill correctly and how to disconnect non-paying
> customers.  This one item alone could make the difference between a
> practical system and one that was useless.

The Brits figured out how to charge for radio/TV receivers.  But Tesla's
device goes worldwide.  Foreign countries wouldn't like the USA to send in
all those little white "detector vans" used in the UK to find illegal
receivers.





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