pdp1@EARTHLINK.NET on tue 6 jan 04
Wood humidity indicators...
Hi Om,
I do not know specificly what two species would work best,
but, to some degree, almost any two different Woods would
work...
I would guess, that if one were disiduous and one not, there
would be some advantage...and..having their grain elected
for straightness...and having their ring orientations
complimentary...should encourage the bending while
discourageing any twisting...
As say maybe Cherry for one and Pine or Fir or Hemlock or
something for the other...or even Poplar I suppose...
Too, I would guess that the length of these strips should be
of short grain - should be having both Woods so their grain
orientation is perpendicular to their length, that is, the
grain should run sideways and not longways...they should
bend a good deal that way...
I think these enjoyed some popularity in America in the
latter 1700s...to have on a Wall...and that Thomas Jefferson
used to make them for friends and so on...
Some experiments maybe!
Good luck,
Phil
Las Vegas
----- Original Message -----
From: "Odin Maxwell"
> On Sun, 4 Jan 2004 20:18:23 -0800, pdp1@EARTHLINK.NET
wrote:
> >Similarly, in a way, a visual gauge for an analoge of
> >Humidity may be made as uses two species of Wood, thin
and
> >glued to gether as strips, whose differeng response to
> >ambient humidity levels will oblige them to bend one way
or
> >the other...
>
> Oh this sounds too fun to let go - any specifics on what
varieties of wood
> work best? I just gotta try this. ;-)
>
> om
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