Re: [compost_tea]

From: Titel Ryzhomer <thegoodjob_at_hotmail.com>
Date: Sat, 20 Nov 2004 21:19:44 -0000

Hi

I just wanted to interject that an NA 1.25 Abbe Condenser with iris
diaphragm is what you should need and is easily found. I have not
seen a 2.5 Abbe Condenser on the market and Terence may have written
this accidentally.

Cheers,
Titel

--- In compost_tea_at_yahoogroups.com, T Dodge <tdodge@s...> wrote:
> Mr. Crozat
> Please consider the microscope method for a basic analysis. If you
> cannot afford SFI manual (very valuable investment) and or a scope
of
> your own, I would suggest  that a local secondary school (science
for
> 14 to 18 year olds in USA) science class "might" have the basic
scope
> that perhaps could be used for looking, France is full of
gardeners,
> some of them may be school teachers so try a connection there.
> The manual is very well illustrated and that is its purpose to
> illustrate what you should and should "NOT" find in AACT. The
scope
> should meet the following requirements:
>
> "You need a microscope with 4X, 10X, and 40X objective lenses
(that 40X
> lens is critical), 10X eyepieces (not 15X eyepieces, please.  You
may
> think more magnification is better, but it is empty magnification,
> because it doesn't give the resolution you need.  Confused by that
> statement?  Come to the class, ok?  Seeing is understanding in
this
> case).
>
> You need a microscope with a N.A. 2.5 (or greater) ABBE condenser,
with
> an iris diaphragm.  ABBE condensers should come with the iris
> diaphragm.
>
>
>
> Terence
>
> On Nov 18, 2004, at 1:51 AM, Pierre-Charles Crozat wrote:
>
> >
> > We started making ACT w. a machine that we designed. Since it is
> > winter here
> > in france we can not test our ACT in "real life". We have the
manual
> > from
> > soil food web so we can juge the ACT according to colour,
smell... but
> > that
> > is not enough for us. We need to have better indicators.
> > Does it mean that we have to have it analyzed by a lab? If so we
are
> > stuck
> > because there doesn't seem to be a lab able to do the testing
that D
> > Ingham
> > says is necessary here in France.
> > Are there any other ways to assess the quality of our ACT
knowing that
> > we
> > are fairly confident about our technology? Our compost is a
> > vermicompost
> > that comes from a reputable producer who has given us the
products
> > analysis
> > so we feel quite confident about that as well.
> > Thanks
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >




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Received on Sat Nov 20 2004 - 18:02:38 EST

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