Wire stretching

[Wimblees@aol.com]

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Didn't someone at some time in the past do an experiment with a piece of wire 
with a heavy weight attached to it. He hung the wire for the ceiling, and 
measured the length of it over a period of time. I can't remember too many 
details, but I thought I read something about it once, maybe in a Journal. 
Will any of you with a CD do a search along those lines?

Wim

Maybe I'll spend some time tonight going through all my old Journals. It's 
time to dust those shelves anyway. :)


In a message dated 4/5/02 10:25:25 PM !!!First Boot!!!, jonpage@attbi.com 
writes:


> On the Mechanical Music Digest there are few people who insist that piano 
> wire does not stretch
> and this is not the reason for multiple tunings required for a newly strung 
> piano.  But once the
> wire has been coaxed to definite terminations, why else would it go flat 
> over the ensuing days.
> 
> They refer to: 'Hooke's Law'  and 'Young's modulus for piano wire'.
> 
> One guy even flames the PTG as to not knowing as much as he does with 
> "their accepted belief
> that piano wire stretches".
> 
> I didn't respond beyond my initial statement of wire stretching, wire 
> easing through the friction
> at bearing points, plate compression and case deformation because of the 
> intensity of a zealous tirade
> but would like to hear opinions on the matter.
> 
> %
> 
> jon Page
> 
> 



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