Re: Odd streamer photograph (fwd)

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Original poster: List moderator <mod1@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Thu, 17 May 2007 03:52:08 -0400 (EDT)
From: M G <gt4awd@xxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Odd streamer photograph (fwd)

Hello Bart, yes, I was referring to the vertical streamer developed on
the left discharge area. It may be possible, as you have said, that the
camera just didn't capture the streamers trail leading back to the
breakout point. I still find it odd how the streamer is vertical instead
of mostly horizontal though. This is the only photograph where I have
captured a vertical streamer. By the way, that image is not the original
format, and not the easiest to see. If you would like to see the full
sized photograph (5.0MP size) I could post it.
Thanks,
Matt G.

---------- Forwarded message ----------

Date: Wed, 16 May 2007 19:56:59 -0700

From: Barton B. Anderson

To: Tesla list

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


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