Message-Id: <l03110711b379d16440db@[192.174.2.173]>
In-Reply-To: <v01510102b3778711e7f8@[205.134.240.103]>
Date: Tue, 1 Jun 1999 10:16:33 -0800
To: "Pinhole Listserv" <pinhole@exploratorium.edu>
From: Paul Doherty <pauld@exploratorium.edu>
Subject: Re: pinhole Bats' Noses
Hi Burt
It is reasonable that the open ended tube of the outer ear would resonate
and amplify a range of frequencies. It is about the same size as a BIC pen
cap.
If you excite the resonance of the BIC pen cap you will hear a real
screeching sound, the sound of a screaming human baby.
Paul D
Paul "But it is more complicated than that!" Doherty,
Senior Staff Scientist, The Exploratorium.
pauld@exploratorium.edu, www.exo.net/~pauld