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Re: very long sparks

to: John

Note the darkened sky.  I, too, was wondering if perhaps it wasn't a
horizontal lightning strike.

Dr. Resonance


-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Saturday, January 08, 2000 9:48 PM
Subject: Re: very long sparks


>Original Poster: "Dr. John W. Gudenas" <jgudenas-at-admin.aurora.edu>
>
>Mark
>Brazelyan and Raizer have produced an excellent book which
>I expect will take me quite a while to fully comprehend. This work
>is devoted to its title "Spark Discharge". That particular picture is
>quite incidental to the text, except to indicate that existing research
>facilities can produce long sparks with surprising results.
>( Get the book ) Twin towers built by GE at the 1939 Worlds
>Fair produced 5mev each for a potential difference of 10mev
>and delighted spectators with around 50' arcs. It is not proper
>to equate the behavior of Marx or Fitch circuits with TC behavior.
>
>The reference list in the back of Brazelyn is alone worth the price
>of the book. No mystery, no doctored photo, just science.
>My thanks to Bert Hickman for suggesting this work for my library.
>If you want to understand spark discharge, this book is a must
>have, however if your calculus is bad, the old professor suggests
>that you brush up and get sparking before purchasing! (An expensive
>book if it makes no sense)
>Cheers
>John W. G.
>
>John W. Gudenas, Ph.D.                       Aurora University
>Department Chair of Computational And Natural Sciences
>347 S. Gladstone,  Aurora, IL 60506    Tel# 630-844-5539
>-----Original Message-----
>From: Tesla List <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
>Date: Saturday, January 08, 2000 6:24 AM
>Subject: Re: very long sparks
>
>
>>Original Poster: Mark Finnis <mefinnis-at-medicine.adelaide.edu.au>
>>
>>At 08:40  06/01/2000 -0700, Bert Hickman wrote:
>>
>>>Certainly! I've scanned in a jpeg of the picture and you can see it at
>>>http://people.ce.mediaone-dot-net/bert-hickman/frames/longarc.htm
>>
>>Couple of comments:
>>
>>1.  Having taken a look at the discharge, what amazes me is the path
taken.
>>
>>The discharge terminal at top of the building (you couldn't refer to
>>something this size as a "coil") is of comparatively small dimension and
>>the e-field should be such that the ground would have been a "better"
>>target long before the transmission tower ? 100m away.
>>
>>Seems odd.  I bet if we built a coil to a scale of this and placed a
>>grounded tower equidistant as per the photo we would be waiting 'till hell
>>freezes over before the tower was hit.
>>
>>2.  I think it is hard to ascertain the true distance of this
>>discharge.  Granted it is large (and I'd be bloody pleased if it were my
>>coil !) but the perspective of the photo is "optimized" to make it look
>>larger.  Look at the fence leading to the towers, they are in fact well in
>>the distance and we don't see the actual tower hit (which appears to be
>>back towards the viewer).
>>
>>3.  The other thing which is strange is some of the shadowing in the
>>photo.  Seems to be lit from above ???   I would be interested to get an
>>expert photographic opinion !
>>
>>Bert ...... I am just a little skeptical of this shot :-(
>>
>>What do you & others think ??
>>
>>Cheers
>>
>>Mark
>>
>>
>>___________________________________________________________
>>
>>Mark Finnis Hm:  61  8  8431 2889
>>Staff Specialist Wk:  61  8  8222 4000
>>Intensive Care Unit Fax:  61  8  8223 6340
>>Royal Adelaide Hospital Mbl:  041 2324268
>>www.health.adelaide.edu.au/icu
>>___________________________________________________________
>>
>>
>>
>
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