PSN-L Email List Message
Subject: Re: Mystery item and its potential seismometry uses/s?
From: John Lahr johnjan@........
Date: Thu, 25 Oct 2007 13:07:55 -0700
At 10:52 AM 10/25/2007, you wrote:
>...I've added another 6th picture and text for a crude "crossed rod"
>the same item.
It would be interesting to test this arrangement of rods. I think
that due to the angles,
the pivot point will need to rub rather than roll. If that's the
case there will be much
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