Are there ever any long period sensors available? Seems like the vertical
ones get homes often.  

-----Original Message-----
From: John or Jan Lahr [mailto:JohnJan@......... 
Sent: Sunday, July 24, 2005 4:16 PM
To: psn-l@..............
Subject: Re: Modified sound card and datalogging and geophones

At 03:56 PM 7/24/2005, you wrote:
>I find the discussion interesting and in no-way want to censor it.  But 
>I have great respect for self responsibility, and I don't wish ill will 
>and bad results from lack of knowledge.  I'm just trying to point out 
>to anyone thinking about playing with some of these ideas
>-- remember young people read this list also -- that there are some 
>important considerations that I would at least like them to consider 
>before proceeding.

I would second this.  When I was at Rensselaer Polytechnic Institute in the
1960's there was one student who was blind and had metal pincers for hands.
He had been experimenting with explosions.

Yours,
John 


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