Best sparks

From:  Richard Hull [SMTP:rhull-at-richmond.infi-dot-net]
Sent:  Wednesday, July 01, 1998 11:58 PM
To:  Tesla List
Subject:  Re: Best sparks

Tesla List wrote:

> ----------
> From:  terryf-at-verinet-dot-com [SMTP:terryf-at-verinet-dot-com]
> Sent:  Tuesday, June 30, 1998 8:49 PM
> To:  Tesla List
> Subject:  Re: Best sparks
>         What I suspect is that once the arc breaks out, it needs additional
> current very quickly to sustain and help the arc.  In order to get this
> current out fast, the top capacitance should be able to deliver charge at
> maximum speed.  This event is fairly local to the top terminal and the
> surrounding charged space.  There should not be too much coupling back to
> the secondary ground except by capacitance around the secondary.
>         It is obvious that arcs have very powerful high frequency
> oscillations.  We don't quite understand why but it is probably best to help
> those oscillations occur.  When the top discharges at high speed it may be
> causing high local field stresses that help push the arc to greater distances.
>         Terry Fritz

I think the source of most of the high frequencies were identified over a year ago
on this list.  It is the arc itself creating a new resonating antenna of its own
every varying length.  This is most definitely modified by the large terminal
capacitance.  Tesla noted similar happenings in his 1899 Colorado Springs notes.
Typical ranges are from a low of 5mhz to a high of over 200mhz.  Depending on about
a billion variables.

I hope no one still thinks that the resonant frequency of the coil is the frequency
of all the electrical energy the visible arc channel of a TC!  Lots of pure
unpulsating single polarity DC is to found in and around sparking TC's also.
Remember the TCBOR electrometer measurements of 1996 and 1997?  The 100 gram
rotored DC electrostatic motors run up to 500 rpm using a tesla coil in 1997?  The
charging of a .1uf, 30KV capacitor from a TC in 1996?   A TC at full tilt outputs
DC to light!  Many of the mechanisms are supposedly well understood.  All are
simple physics laws coming into play in an insane web of chaotic, naturally self
adjusting, multipathed events over often microsecond and submicrosecond time
frames.  Attempting to following all the paths will simply make you nuts

 Lightning is a prime example of self excited resonating arc channels.  The
hundreds of streamerlets, leaders, etc give lightning a very wide range of
frequencies.....DC to light!

Richard Hull, TCBOR