Re: Beading caught on film.

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Jim Lux" <jimlux@xxxxxxxxxxxxx>

If you've ever sat in a faraday cage with a coil striking it you'll see the
same "beading" phenomenon.  Quite unique and noticeable.

----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Tuesday, May 03, 2005 7:33 PM
Subject: Re: Beading caught on film.


> Original poster: stork <stork@xxxxxxxxxxxxxxxxxxx>
>
>
> >Don't know what it is...
> >Cheers,
> >         Terry
>
> Terry,
>
> There is a very simple explanation.  We see this effect in medical imaging
> all the time.  An example is a simple x-ray where a three dimensional
> object is reduced to two dimensions on the x-ray film.  When an image is
> taken end on or longitudinally of a cylindrical object, such as a blood
> vessel or air in a bronchus, the density of the object is greatly enhanced
> or reduced depending on density.  And, since these images are nonlinear
> this image is greatly accentuated.  If x-rayed again at 90 degrees
> orientation the object completely vanishes on the x-ray.
>
> We all know these TC arcs spiral.  The beading is nothing more than a two
> dimensional depiction of a three dimensional process. The bead
photographed
> is simply looking longitudinally down a short segment of an arc.  If two
> cameras are synchronized and at 90 degrees orientation beads will
> photograph on either, but not synchronously together.
>
> stork
>
>
>
>
>