Results are In! Re: moisture in wool or wood.

[Erwinpiano]

----- Original Message -----
From: "Ron Nossaman" <RNossaman@KSCABLE.com>
To: <pianotech@ptg.org>
Sent: Saturday, January 13, 2001 10:48 AM
Subject: Re: Results are In! Re: moisture in wool or wood.


> > My first trial there was to simply see whether a flange hole
> >got bigger or smaller with increased humidity/moisture content. It is
clear
> >to me, contrary to apparent popular belief, that a hole in a flange
> >decreases in diameter with increased humidity/moisture content.
> >
> >Terry Farrell
>
> That's an assumption that's not necessarily supportable by the experiment.
> Did the hole get smaller, or narrower and oval? How can you tell if the
> average diameter of the hole is smaller or larger by testing the fit of a
> round rod? It's the average diameter that has the effect of compressing
the
> bushing cloth against the center pin, not the narrowest spot, which your
> test may be indicating. Since the rest of the hole could still be wider
> than the rod, or not, what has it told us?
>
>
> Ron N