Hi again Alan and Ken S is given in The Calculating Technician as S = d^4/(139430*L^2*T) and he mentions that this is for Steel wire. I would also assume that S would vary for various kinds of wire. That would probably mean that the number 139430 is what changes... and what this number actually represents and where it comes from is still at this point a mystery.... grin... Tho I will get more time for reading tommorrow. In the mean time.. if anyone has the answer I am looking for... I sure would appreciate it. In any case... it doesnt really look like this has anything to do with McFerrins Inharmonicity Constant... or perhaps thats just another way of going about things ? Cheers RicB
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