Klarinet Archive - Posting 000061.txt from 1994/03

From: edgar pearlstein <e_p@-----.EDU>
Subj: Re: Material properties
Date: Fri, 4 Mar 1994 17:57:09 -0500

:
: On Fri, 11 Feb 1994, Jay Heiser, asked:
:
: > Is grenadilla harder or softer than hard rubber?
:
: Try pushing a thumbtack into a hard rubber mouthpiece. Then try pushing
: it into a piece of grenadilla using the same force. I think you'll find
: that the grenadilla is noticeably softer.
:
This may be deceiving. Wood has grain, so pushing a thumbtack into it
will just spread the grain. A better test would be to press with a knife
blade, using a calibrated force, and see which gets the greater indentation.

   
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