PSN-L Email List Message

Subject: Re: OmniDirectional Free Hanging Pendulum and Voltage VS
From: John Lahr johnjan@........
Date: Sat, 10 Nov 2007 08:00:36 -0800

Nice picture of the sand seismoscope.

The following explanation is not correct, however:

"The "flower" in the center records the surface movements associated 
with the higher frequency waves that arrived first. The outer larger 
amplitude oscillations record the lower frequency waves that arrived later.

The lines from the largest pattern are interrupted by the rose 
pattern.  The rose is probably due to the earthquake vibrations while 
the large-scale pattern was human generated some time earlier.



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