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Re: Ball Lightning



Original poster: "harvey norris by way of Terry Fritz <twftesla-at-qwest-dot-net>" <harvich-at-yahoo-dot-com>


--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
> 
> Hi Nele,
> 
> The Corums and Cabbott Sanders worked with a two
> coil system to try this.
> Cabbott could not reproduce the fireballs
> convincingly.  Unfortunately,
> Tesla's notes on this are sketchy and it is not
> clear at all what he was
> doing.  
> 
> Tesla states that is Colorado Springs system
> produced fireballs in the
> arcs.  I am not sure if he thought these as being
> just like those found in
> nature or maybe just similar.  If Tesla could make
> such fireballs, the
> methods he used and those for reproducing natural
> ball lightning will have
> to be "rediscovered" since there is not enough
> verifiable information to go
> on from his known notes.  However, he seems to have
> been more successful
> that others in getting "close".
> 
> Cheers,
> 
> 	Terry
> 
> 
> At 11:49 AM 1/11/2002 +0100, you wrote:
> >73
> >Hello All!
> >
> >As for the ball lightning: what about the fact that
> Tesla mentioned in
> >his experiments, that he generated sphere lightning
> using just
> >discharging of two diferent frequencies, using the
> high frequency coil
> >to arc to the low frequency coil, the low frequency
> coil would then
> >release it`s energy rapidly, in a burst. He was
> saying also something
> >about discharging the two diferent frequency
> streamers through the
> >larger pipe, and notice little spheres inside as a
> product of a
> >colision.
> >
> >"...it became apparent that the fireballs resulted
> form the interaction
> >of two frequencies, a stray
> >                     higher frequency wave imposed
> on  the lower
> >frequency oscillations of the main circuit....
 The idea here of triggering two frequencies does seem
relevent. The first tesla coil I had built many years
ago was based on a mistaken formula for the primary
inductance where; 
   The Wheeler equation is normally used in coil
design to calculate inductance.   
     L = R^2*N^2 / (9*R + 10*B) uH
R = radius, inches
N = number of turns
B = coil length, inches
In my calculations in had mistakenly used 19 instead
of 10 for the B constant. This meant that the coil was
not tuned properly, and only several inch arcing
ensued. Now this secondary was actually 1500 ft of
insulated 14 gauge wire. wound on a 20 inch diameter
Sonotube. Each of the 500 ft segments was soldered. It
was noticed however that ~ 1FT WHITE BOLTS WERE
ACCIDENTLY MADE WHEN THE TOP TERMINAL WIRE WAS BROUGHT
INTO THAT VICINITY OF THE FIRST 500 ft solder segment.

What does this indicate? It seems possible that
perhaps the shorter 500 ft of wire may have been more
conducive to vibrate to the (mistuned)primaries. In
any case I dont think a secondary arcing to itself
would be very healthy thing to purposely do. On the
other hand there certainly does seem to be a rationale
for a beneficial aspect of reacting 3 times a source
frequency with itself.

To cite Tesla here from Sept 19, CSN, pg 191 on 6
different magnifier schemes;
In Figures 5 And 6 it is found best to make extra coil
3/4 wave length, and the secondary 1/4 for obvious
reasons.

Now it seems to me that since all the other schemes
show the secondary endings connected to the base of
the extra coil, and that in fact all the extra coils
being employed were in fact INSIDE the larger
secondary, it seems logical that Tesla also tried
schemes where this direct line connection between
coils was not employed, and the cited figures show
that no such connection exists. And then for OBVIOUS
REASONS an outer vibration can excite its first
harmonic, or 3 times the initial frequency.

So if anyone is considering obtaining ball lightning,
perhaps they might try shorting their secondaries at
1/3 the length, and mistuning the coils to begin with!
> >                    This condition acts as a
> trigger which may cause the
> >total energy of the powerful longer wave
> >                    to be discharged in a
> infinitesimally small interval
> >of time and the proportionately tremendously
> >                    great rate of energy movement
> which cannot confine
> >itself to the metal circuit and is released
> >                    into surrounding space with
> inconceivable violence.
> >
> >                    It is but a step, from the
> learning how a high
> >frequency current can explosively discharge a lower
> >                    frequency current, to using the
> principle to design
> >a system in which these explosions can be
> >                    produced by intent."   -N.
> Tesla
> >
> >But he never really explained how he acchieved the
> generation of this
> >phenomenon.
> >
> >Regards,
> >Nele
> >
> >
> >
> 
> 


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