PSN-L Email List Message

Subject: Re: A diamagnetic graphite seismogram web reference
From: "Raul J. Alvarez" ralvarez@........
Date: Tue, 08 Jan 2002 15:45:25 -0700


Hi Meredith and all,

Have you published any information on this design?

Thanks,
Raul Alvarez

meredithlamb wrote:

> Hi all,
>
> David Lamb in Texas recently was successful in obtaining
> a seismogram of a quake off the coast of Nicaragua using
> his experimental diamagnetic N-S seismometer.  This gram
> appears to be the first known amateur detected quake using
> this approach with spectrographic grade graphite as the
> levitated mass with a optical/light sensing arrangement.
>
> Personally, I think the gram phases look to be quite well
> defined and quite encouraging for this seismometer method
> of quake detection.
>
> The web site page is at:
>
> http://diamagnetics.users2.50megs.com/page065.html
>
> Take care all, Meredith Lamb
>

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