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Re: Odd streamer photograph (fwd)
Original poster: List moderator <mod1@xxxxxxxxxx>
---------- Forwarded message ----------
Date: Mon, 21 May 2007 22:55:34 -0700
From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Odd streamer photograph (fwd)
Hi Matt,
The pixel noise is from the adjustment I made to bring our the hot areas
of the streamers. It's just the program, not the camera. The streamer
could also have influenced by ionized air to redirect upwards and then
the tip of the streamer is also playing a role to it's path. Lot's of
theory's I guess. Bert is probably the best at steamer propagation
theory that I'm aware of. The current in the streamer tip is involved in
the growth and many influences can change direction.
It is definitely a circuit. Streamers don't exist in an open circuit.
The circuit is created by the potential difference in the charged field
around the topload (charged particles around the top load). Although we
can't "see" the field, it's there. That's why streamers appear to just
jump out to nothing. But of course, there is a potential difference. It
doesn't have to be ground or a recognizable object. Steamers will start
out usually in an outward direction but can be influenced by heat,
grounded objects, unground objects, and even by voltage nodes along the
coil itself.
The only reason I mentioned a magnetic field is that a steamer itself
exerts a magnetic field and that particular little vertical steamer was
possibly influenced by a recent neighboring steamer. It is probably more
feasible that the ionization of a previous steamer changed it's
direction. But, hard to say.
Take care,
Bart
Tesla list wrote:
>Original poster: List moderator <mod1@xxxxxxxxxx>
>
>
>
>---------- Forwarded message ----------
>Date: Mon, 21 May 2007 15:59:51 -0400 (EDT)
>From: M G <gt4awd@xxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: Odd streamer photograph (fwd)
>
>p {margin-top:0px;margin-bottom:0px;}
>Bart, I noticed the large amount of what I remember being called, "Pixel
>noise". Is this because the camera can capture ions not visible to the
>eye, or some other reason due to the cameras capabilities?
>
>About the vertical streamer being influenced magnetically in some way.
>This was also my guess. Except my thinking was it reached the end of the
>coils strongest magnetic field, and decided to follow the edge of it.
>Your guess seems more likely to be the real cause of the vertical
>streamer though.
>
>Is it a good guess that the streamers follow an outward path because this
>is the direction of the electromagnetic force?
>
>Another question. A Tesla Coil emitting streamers into the air is still a
>complete circuit isn't it? The ions are following an invisible path to
>the ground because of t! he secondaries ground connection. Or am I wrong?
>
>Matt G.
>
>
> ---------[ Received Mail Content ]----------
>
> Subject : Re: Odd streamer photograph (fwd)
>
> Date : Fri, 18 May 2007 19:32:18 -0600 (MDT)
>
> From : "Tesla list" <tesla@xxxxxxxxxx>
>
> To : tesla@xxxxxxxxxx
>
>
>
> Original poster: List moderator
>
>
>
>
>
>
>
> ---------- Forwarded message ----------
>
> Date: Fri, 18 May 2007 18:19:43 -0700
>
> From: Barton B. Anderson
>
> To: Tesla list
>
> Subject: Re: Odd streamer photograph (fwd)
>
>
>
> Hi Matt,
>
>
>
> Here's an image I raised gamma to 2.4 and adjusted the
> color-balance to
>
> identify hot stops of the arc at. I cropped the left arcing
> side of the
>
> picture to reduce ! the size of the image.
>
> http://www.classictesla.com/temp/1000194 xf1-bba.jpg
>
>
>
> Note that there is a hot spot which the small vertical
> streamer appears
>
> to have resided from. Probably not a previous arc. Just a
> chosen
>
> direction for the streamer itself. There's really a lot of
> neat things
>
> going on in our streamers. This pic pretty much gives a good
> indication
>
> of the overall situation. Note the hot spot at the toroid.
> Follow those
>
> streamers to the second hot spot. You can see from the
> streamers
>
> emanating from that 2nd hot spot that the 3rd hot spot was
> developed
>
> from the 2nd hot spot. I expect that little vertical streamer
> was
>
> influenced by the 2nd hot spots magnetic fields (just a
> theory).
>
>
>
> Things like this occur with sparks. It's great that you
> noticed it and
>
> captured the subtle difference on image.
>
>
>
> Our coils are often termed disruptive coils with a chaotic
> output.
>
> Although they are disruptive coils, the streamer propaga!
> tion has a
>
> definite physics which governs the path the streamer travels,
> and part
>
> of those physics is the tip of the streamer itself. As seen
> in natural
>
> God created lightning and even our coils, streamers can
> change direction
>
> in an instance. But isn't it interesting that the change in
> path is
>
> really not all that great. Sure it diverts from time to time,
> but the
>
> general direction is "away" from the point of origin. I've
> never seen an
>
> arc in natural lightning or in man made device travel outward
> and then
>
> back near it's origin. If high power and highly mistuned
> coils, they do
>
> sometimes come close by hitting about 1/3 down the coil
> itself, but
>
> that's a different problem (I once had).
>
>
>
> Take care,
>
> Bart
>
>
>
> Tesla list wrote:
>
>
>
> >Original poster: List moderator
>
> >
>
> >
>
> >
>
> >---------- Forwarded message ---! -------
>
> >Date: Thu, 17 May 2007 21:33:54 -0400 (EDT)
>
> >From: M G
>
> >To: Tesla list
>
> >Subject: Re: Odd streamer photograph (fwd)
>
> >
>
> >Here's a link to the original sized photograph.
>
> >2576x1932
>
> >http://img526.imageshack.us/img526/2793/1000194xf1.jpg
>
> >
>
> >Thanks,
>
> >Matt G (not Hall).
>
> >
>
>
>
>
>
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>
>
>
>
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