Message-Id: <3.0.32.19970306235337.006c9354@icefog.polarnet.com>
Date: Thu, 06 Mar 1997 23:53:44 -0900
To: pinhole@exploratorium.edu
From: "J. Lahr" <jlahr@polarnet.com>
Subject: Circuit details
Paul and Doug,
I, for one, am interested in the details of both the "circuit that detects a
change in magnetic field" and the circuit "detect positive and negative
electric charges."  
Thanks,
JCLahr
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