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Re: Wireless power transmission

Original poster: "Paul B. Brodie" <pbbrodie@xxxxxxxxxxxxx>

You say a coil of 264 ft. in diameter. The coil at Tesla's project at Wardenclyffe wasn't even anywhere near that large.
Paul Brodie
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, March 14, 2005 6:55 PM
Subject: Re: Wireless power transmission

> Original poster: Harvey Norris <harvich@xxxxxxxxx>
> --- Tesla list <tesla@xxxxxxxxxx> wrote:
> > > Original poster: "Paul B. Brodie"
> > <pbbrodie@xxxxxxxxxxxxx>
> > >
> > > I know we all love big sparks but has anyone done
> > any serious research and
> > > tried to duplicate Tesla's claims of wireless
> > transmission of electric
> > > power?
> I would start with the study of lower frequency
> resonators since apparently the great problem is that
> resonant circuits in the 8 to 12 hz range are not
> easily buildable, so first we can study existing
> models and speculate from there what the requirements
> would be if the same circuit were to be lowered in
> frequency. I have a particular low frequency resonator
> that might be used as a model; where it exhibits a
> 30,000 hz resonance from 25-30pf scopings; but the
> coil is only a square succession of 20 zig zag spiral
> layers of 30 winds, for a total of 600 winds. The
> layering method is responsible for a certain amount of
> internal capacity in the multiwound coil where it is
> the voltage between layers that becomes predominant in
> the internal CV^2 term, and not the voltage between
> actual winds that makes little contribution. One
> mathematical model based on comparing a diagonal
> layering method for a 25 unit array compared to the
> conventional zig zag layering showed that the
> diagonally wound model would have almost 6 times more
> internal capacity, where if this were true the
> existing inductor using diagonal windings resonating
> at 30,000 hz would now resonate at 5,000 hz. Now this
> particular inductor already resonates 13 times slower
> then what quarter wave value estimations give, where
> each wind is only 20 inches in circumference.
> Supposing then the wire route change were able to
> accomplish a 5000 hz resonance, how far would I have
> to expand the circumference to match 500 hz from an
> alternator? Ten times the initial 20 inch per wind
> equals 200/12 = 16.6 ft per wind, or a diameter of
> only 5.3 ft. To model a further reduction down to 10
> hz, this would be a 50 fold reduction yeiding 830 ft
> per wind, for a huge diameter coil of some 264 ft.
> Just some idle speculation of what a earth frequency
> resonant coil might look like...