A strong bright TE can also come from a whole lot of small
particles. It's available total reflective surface area that determines
brightness.
Particles sizes affect the 'texture' of the light in the beam where
largish ones contribute a sort of graininess and small ones promote a sort
of fuzziness in a beam of the same intensity.
The eye can pick up on a single photon but doesn't have the resolution to
differentiate between photons...but it can tell a comparative difference in
photon cluster sizes or, said badly another way, the diameter of photon
streams.
The effect of linear light amplifies the differentiation ability of the eye
dramatically.
If the photon stream diameters are close to the eyeballs resolution
limit, it will appear fuzzy.
The properties of laser diffraction can be calibrated to determine particle
sizes quite accurately. I believe this is how the Malvern Particle Sizer
works.
Ode
By the way, a strong Tyndall effect certainly indicates the presence of
particles, and usually the larger the particles, the brighter is the light
beam. Tyndall effect thus depends on both quantity and size of particles.
Your brew may very well have a good percentage of particles, but they are
very small and therefore do not cause much of a Tyndall effect. List wisdom
says smaller particles are best.
--Steve Y.
----- Original Message -----
From: "Peter M. Stellas" <stel...@foxinternet.net>
To: <silver-list@eskimo.com>
Sent: Sunday, November 12, 2006 5:16 PM
Subject: CS>Puzzled!
> I just received a bottle of CS from Meso silver (Colloids for life LLC),
> which is supposed to be 20 PPM, and 80% particles versus 20% ions.
>
>
>
> It has a light yellow-green hue, resembling the water that you get after
> boiling mustard greens. When tested with a Hanna PWT meter and a laser
pen,
> it gave the following results:
>
>
>
> 1. PPM = 8.1
>
> 2. Tyndal effect = Very strong
>
>
>
> The CS that I have been producing measures up to 15 PPM, is clear, and has
> virtually no Tyndall effect.
>
>
>
> I have read that a good batch is supposed to be clear, but Meso's is
> colored, but without visible particles.
>
>
>
> Meso was rated as the top quality CS in a table which gave detailed
> comparison of the products of several vendors who sent it their samples
for
> evaluation.
>
>
>
> Can anyone help me understand what is going on? How can I be measuring 15
> PPM for my product and 8.1 PPM for Meso's. How can I have clear water at
15
> PPM and Meso a colored water at 8.1 PPM? I must be missing something here.
>
>
>
> Peter
>
>
>
> P.S. In previous correspondence I mentioned using a PPM meter, when I
> really meant the Hannah PWT meter that I got from Silver-Gen.
>
>
>
>
--
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