impedance and empericism

[Joe & Penny Goss]

Jim,
My bet would be that the pitch would be higher since the rod will be both
shorter and smaller at 40F  And if you do not warm the tuning fork to the
same temp as your first test at 120F  even sharper.
Joe Goss
----- Original Message -----
From: <JIMRPT@AOL.COM>
To: <pianotech@ptg.org>
Sent: Sunday, June 18, 2000 7:46 PM
Subject: Re: Re: impedance and empericism


>
> In a message dated 6/18/2000 5:09:08 PM, Marc wrote:
>
> <<Imagine a left-handed thread on a right-handed bolt... NO, WAIT,
> THAT'S THE WRONG PROBLEM!!>>
>
> Yeah course it is,.......how can a left handed nut have anything to do
with
> light being pulled , bent?, toward a gravitational source!!!  :-)
>
> from: http://www.geocities.com/CapeCanaveral/Hangar/4317/redaw.html
> ".................energy change, which manifests
> itself as a change in frequency in this case since the speed of light
> cannot change, ..............................."
>
> and contradicted by: ( not to mention considerable waffling room :)
> "We are assuming that when light slows down, its apparent frequency is
> unchanged. However, other assumptions can also be considered."
>
>  Of course Marc, all this applies to light and speeds/distances
> incomprehensible to most of us and the question was about sound (pitch)
> changing from cold to hot or hot to cold.
>  I have an 8" long  X  2" dia. iron rod.......question: will the pitch
caused
>  by an 'A' fork struck and held onto one end of that rod be attenuated
> differently when the rod is 120F and when it is 40F, with the resulting
pitch
> being measured at the opposite end of the rod in each case ? I'ma gonna be
> tries dis in de mornin.
> Jim Bryant (FL)
>