Hardman POS.

[gordon stelter]

All the Hardmans I have seen are actually quite well
built. I am guessing that the beating is caused by
kinks in the wire formed by years of standing below
pitch, followed by bringing up to pitch, which moved
the kinks into the speaking length.
( A good point for convincing folks to have their
pianos tuned at least once a  year. )
     Thump


--- Alan <tune4u@earthlink.net> wrote:
> Andre's post still leaves the question unanwered,
> for me. For the system to
> wind down like that, the tension still has to go
> somewhere, i.e., if the
> string relaxes, something else is tensing up, so to
> speak.
> 
> Reminded me of this question that my old high school
> physics teacher posed:
> "I you wind a watch spring extremely tightly into
> itself, then put it in a
> stainless steel case that fits snug enough so the
> spring cannot unwind, then
> add a drop of water and acid, then seal the whole
> system shut so no moisture
> can enter or leave, the spring will eventually
> dissolve/rust away. Where did
> the energy of coiled spring go?"
> 
> This may even relate to our piano question. I'll
> post the answer later.
> This, BTW, was an experiment actually performed at
> some university or other.
> 
> Alan R. Barnard
> Salem, MO
> 
> 
> -----Original Message-----
> From: pianotech-bounces@ptg.org
> [mailto:pianotech-bounces@ptg.org] On Behalf
> Of antares
> Sent: Monday, March 28, 2005 3:45 AM
> To: Pianotech
> Subject: Re: Aha! was flat facts
> 
> 
> As I tried to say before :
> 
> Leave a piano untouched, and pitch will go down over
> time.
> It is because it is a natural way for materials
> under tension or 
> stress, to release that tension over time.
> Of course it is a combination of factors, like the
> deterioration of 
> wood and metal and the sound board losing its crown
> etc, but in the 
> end, if untouched, pitch will be down to zero.
> 
> friendly greetings
> from
> André Oorebeek
> 
> -- 
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>  
> 
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> 


		
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