Re: Mysterious Streamers (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 22 Aug 2007 20:57:51 -0400
From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: Mysterious Streamers (fwd)

Chris,
     After thinking about it, I believe Mr. Hanson is correct, it is a bug.  
The pulses are from the spark gap lighting it up not the 60 HZ from the 
streetlight, I disagree with Scott on one point however, the reason there 
are several parallel identical images is because of multiple internal lenses 
each having their own glare (did the camera have a telephoto lens? I don't 
remember if you mentioned it).  If I had time I would replicate the 
conditions using some of my Dads photography equipment and a spark gap (but 
I start School in a few days, and I just got out of surgery today, and Mom 
won't let me touch anything).  Some of the other pictures are clearly glare 
from the streetlight, but the toroid is skewed as well, indicating that the 
camera moved during the shot.  Your negative rendering of the picture shows 
it is rock solid, as you can even see people in the background, not blurred 
in the least.  If Chip would let me know the proper procedure, I will post 
one of the ghost images I obtained with my small coil, which are clearly 
glared streamers (green in color).  I wouldn't lose any sleep over this 
though!
Scott Bogard.


>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: Re: Mysterious Streamers (fwd)
>Date: Wed, 22 Aug 2007 06:41:06 -0600 (MDT)
>
>
>---------- Forwarded message ----------
>Date: Wed, 22 Aug 2007 13:31:16 +0100
>From: Chris Rutherford <chrismrutherford@xxxxxxxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: Mysterious Streamers (fwd)
>
>Hi All,
>
>I don't think its an insect because if you look closely at it, you can see
>mini streamers coming off it.  See pic run through filter.
>
>http://www.hackinghardware.com/tc/evenodderstreamer.JPG
>
>Thanks
>
>Chris
>
>On 8/22/07, Tesla list <tesla@xxxxxxxxxx> wrote:
> >
> >
> > ---------- Forwarded message ----------
> > Date: Tue, 21 Aug 2007 17:51:32 -0700
> > From: huil888 <huil888@xxxxxxxxxxxx>
> > To: Tesla list <tesla@xxxxxxxxxx>
> > Subject: Re: Mysterious Streamers (fwd)
> >
> > Curt -
> >
> > Here's a possible explanation  for the brightest "traces" consisting of
> > multiple linked bright spots.
> >
> > 1. It looks like this exposure had a an effective "shutter speed" of 1-3
> > seconds, and include an "on camera" flash event. The toroids are 
>in-focus,
> > and don't show any significant "ghost images" from camera movement
> > before/after the flash.
> >
> > 2.The two bright yellow traces clearly pass in front of the top toroid,
> > and
> > are therefore not artifacts of some light source (streetlight, etc) far
> > behind the coil.
> >
> > 3. These traces don't look anything like the internal reflections caused
> > by
> > a bright off-axis light source bouncing off multiple lens surfaces in a
> > compound air-spaced lens (like a zoom lens).
> >
> > 4. The paths of these traces are relatively smooth and continuous, 
>without
> > any sudden sharp angular jogs or divergence from a "smooth" trajectory.
> >
> > 5. One notable aspect of the traces are the regularly spaced dots of
> > light,
> > slightly smeared, along the axis of the trace.
> >
> > 6. Where is your spark gap located, what type of gap is it (static,
> > rotary,
> > etc) and do you know what the break rate is?
> >
> > 7. I think the evidence suggests that these traces were caused by  
>insects
> > (moths, etc) flying in the vicinity of the coil, illuminated by the
> > intense,
> > regular flashes of light from the spark gap. If you know the break rate 
>of
> > your spark gap, and have a higher-resolution copy of the image so you 
>can
> > count the dots in an estimated distance, you can calculate the 
>approximate
> > velocity of the insect and see if it "fits" the flying insect 
>hypothesis.
> > The increasing distance between dots as the "object" got closer to the
> > camera fits the hypothesis.
> >
> > Regards,
> > Scott Hanson
> >
> >
> > ----- Original Message -----
> > From: "Tesla list" <tesla@xxxxxxxxxx>
> > To: <tesla@xxxxxxxxxx>
> > Sent: Monday, August 20, 2007 8:23 PM
> > Subject: Mysterious Streamers (fwd)
> >
> >
> > >
> > > ---------- Forwarded message ----------
> > > Date: Mon, 20 Aug 2007 20:04:05 -0700 (PDT)
> > > From: C. Sibley <a37chevy@xxxxxxxxx>
> > > To: tesla@xxxxxxxxxx
> > > Subject: Mysterious Streamers
> > >
> > > I ran my big coil for about 50 people last Saturday night.  Today one 
>of
> > > the people that were there e-mailed me some pictures.  One of the
> > pictures
> > > has some really wierd "streamers" in it that I can't explain.
> > >
> > > http://www.wackorama.com/teslalist/oddstreamers.JPG
> > >
> > > I didn't notice anythng unusual while running it, but this one picture
> > is
> > > very odd.  Anyone have any ideas?
> > >
> > >
> > > Curt.
> > >
> > >

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