Re: Odd streamer photograph (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: List moderator <mod1@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Wed, 16 May 2007 19:56:59 -0700
From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Odd streamer photograph (fwd)

Hi Matt,

I looked at the photo's the first day you linked them. I saved the photo 
in question to my hard drive and then used PSP 8.0 to take a "better" 
look. After setting the gamma up to make some sense of it. I have no 
clue what your referring to regarding "create a vertical streamer that 
appears to have originated directly in the air". Are you talking about 
the small vertical looking streamer that is at the edge of the brushy 
discharges? Ah, that is likely what you are describing. That is a 
remnant of a previous spark channel. Camera timing can capture old and 
new sparks. Sometime bits and pieces of each and of course the main 
sparks between. I see nothing abnormal in the pics.

Take care,
Bart

Tesla list wrote:

>Original poster: List moderator <mod1@xxxxxxxxxx>
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>---------- Forwarded message ----------
>Date: Wed, 16 May 2007 21:28:35 -0400 (EDT)
>From: M G <gt4awd@xxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: Odd streamer photograph (fwd)
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>Care to go into more detail as to why a toroid that isn't perfectly
>smooth can create a vertical streamer that appears to have originated
>directly in the air? That is unless you were just talking about how the
>right breakout area would normally create longer streamers. I was hoping
>to get some more information than just, "your topload is dented, so
>maybe..", but thanks for the reply nevertheless.
>Matt G.
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>---------- Forwarded message ----------
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>Date: Tue, 15 May 2007 17:20:39 -0500
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>From: Drake Schutt
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>To: Tesla list
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>Subject: Re: Odd streamer photograph (fwd)
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>Well your topload seems like it has a lot of big dents in it, so I bet
>that
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>has something to do with it.
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>On 5/15/07, Tesla list wrote:
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>>Original poster: List moderator
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>>---------- Forwarded message ----------
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>>Date: Tue, 15 May 2007 16:42:09 -0400 (EDT)
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>>From: M G
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>>To: tesla@xxxxxxxxxx
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>>Subject: Odd streamer photograph
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>>Back when I still had my first coil setup working I took the time one
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>>to get a good amount of photographs of the it in operation. The coil, a
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>>9kv 30ma 4" secondary, was close to tuned for the photographs. Max
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>>streamer length about twelve inches. Well, the first thing that strikes
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>>me as odd in every photograph is the right side of the coil would
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>>make slightly longer streamers. This side was facing the garage door,
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>>which is all metal, but about five feet away.
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>>The right breakout streamers usually appeared to be more elongated in
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>>photographs, whereas the left streamers would be more compact and
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>>"bushy". What is really odd though is this one photograph I captured.
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>>It's of the coil running with two equally separated breakout points. In
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>>this photograph the left breakout streamers seem to have hit an
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>>"invisible wall" leaving a vertical streamer that appears to have
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>>originated directly in the air, and not from the coils breakout point.
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>>The photograph does not show this vertical streamer connected by its
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>end
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>>to any of the other streamers originating from the breakout point. I
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>was
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>>wondering if anyone has an idea as to why this odd streamer formed?
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>>Link to image;
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>>http://img214.imageshack.us/img214/2087/1000194vw8.jpg
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>>If the image does not load after twenty seconds refresh the page.
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>>Imageshack has a lot of "lag" problems from overloaded servers. Here
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>>links to the other photographs I captured that day.
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>>Links;
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>>http://img214.imageshack.us/img214/77/1000199sp5.jpg
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>>http://img214.imageshack.us/img214/6572/1000198hd7.jpg
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>>http://img214.imageshack.us/img214/4342/1000197zl1.jpg
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>>http://img214.imageshack.us/img214/7489/1000196yd8.jpg
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>>http://img214.imageshack.us/img214/3533/1000195ud2.jpg
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>>http://img214.imageshack.us/img214/5968/1000192hi2.jpg
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>>http://img214.imageshack.us/img214/1650/1000191ie2.jpg
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>>http://img214.imageshack.us/img214/1447/1000190qb9.jpg
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>>http://img214.imageshack.us/img214/3238/1000193dv9.jpg
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>>http://img164.imageshack.us/img164/9637/1000178nc0.jpg
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>>http://img81.imageshack.us/img81/7522/1000166we5.jpg
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>>http://img81.imageshack.us/img81/2921/1000165iq1.jpg
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>>Photographs were captured using different camera settings to find the
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>>best results.
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>>Thanks,
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>>Matt G.
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