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Re: Beading caught on film.

Original poster: "Mike" <mikev@xxxxxxxxxxxxxxxx>


----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, May 04, 2005 1:17 PM
Subject: Re: Beading caught on film.


> Original poster: Steve Conner <steve.conner@xxxxxxxxxxx>
>
> At 19:04 03/05/05 -0600, you wrote:
>
> >Don't know what it is...
>
> I think it's a length of arc channel that heads directly away from or
> towards the camera so you're looking right down it. That makes it seem
> brighter. You wouldn't see that with the eye because you have two eyes and
> see in 3-d.
>
ENTERING COMMENT HERE: (From work email address)
Steve,
              Those spaces or striations are quite real. I can do that with
DC or AC,
It looks the same in person as in movie. I refer to your text below.
Regardless of point of view camera still, movie camer or human eye, they
look the samefrom any position. If you lok through one striation into the
other of course you can not see the space. The space I have adjusted from
fractional inches to feet.
In the below linked movie, you can study them. I can park them in place, set
high or low speed or set the tube up to a slow creep either direction. Tube
is 22.5 inches ID, 6 feet tall. Both are interesting but for this thread go
for the flat striations movie.
File sizes also shown. Also I've done this with a NST 15/60 as well as a
2600 volt at 10 amp supply variable.
Mike
 www.hot-streamer.com/mike2004/
 Size = 97,148,416
 Flat_striations_22dot5_inches_wide_watch_for_center_hollow_toward_edges.avi

Size = 56,739,840
  Three-Round-Striations.avi



> On a related note, a while back I saw a post where someone saw two dark
> bands in a plasma tube (powered by a NST) that he photographed with 1/250
> sec shutter speed, so assumed that they couldn't be due to zero crossings
> of the 60Hz. He went on to assume that this was caused by some sort of
self
> organising plasma.
>
> Well I recently found out that this can happen with SLR cameras that have
a
> focal plane shutter. The actual shutter blinds move quite slowly and fast
> shutter speeds are achieved by narrowing the slit between them. So a given
> piece of film may only get exposed for 1/1000 sec but it can take 1/60 sec
> to expose the whole frame. Hit google for an explanation of the focal
plane
> shutter.
>
>
> Steve Conner
>
>
>
>