Petrifying process of wood

[Farrell]

This is a multi-part message in MIME format.

---------------------- multipart/alternative attachment
Wood is petrified through a process of mineral replacement. Once =
petrified, the object that was once wood becomes rock. Petrification =
occurs over a very long period of time - thousands/millions of years. It =
can occur when wood is buried in the ground and groundwater migrates =
through it - it is the groundwater carrying dissolved minerals that is =
the vehicle for wood petrification.

http://www.americansouthwest.net/arizona/petrified_forest/geology.html

Wood does not become petrified in a functioning, non-buried piano. =
Period.

Terrence M. Farrell, P.G.
Licensed Professional Geologist
  ----- Original Message -----=20
  From: jonathan stuchell=20
  To: Pianotech=20
  Sent: Saturday, December 03, 2005 2:22 PM
  Subject: Re: Petrifying process of wood


                   Isnt it mainly a matter of time leading to =
petrification?  That would be like trying to sober up a drunk quicker !
    ----- Original Message -----=20
    From: Quentin Codevelle=20
    To: pianotech=20
    Sent: Saturday, December 03, 2005 1:21 PM
    Subject: Petrifying process of wood


    Hi List,

    Some months ago, we evoked the petrifying process of wood in the =
soundboard, resulting a loss of vibration ability, and thus a loss of =
power.

    Where can I find another information about this?=20

    Can this petrification be accelerated because of humidity and =
temperature conditions, or even because of the playing of the piano?

    At what age can a soundboard be considered as "petrified", so that =
it has to be changed to get a good sound out of the piano?

    Thanks,

    Quentin
---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/92/0c/66/e2/attachment.htm

---------------------- multipart/alternative attachment--