On Sun, Nov 16, 2008 at 4:25 PM, Gary Lindgren wrote:

>  For the last few months I have been working on a vertical seismometer.
>
Or................being as you're mechanically overall part way (~60%) there
already.....add more upright vertical support
and a horizontal extension (and a conventional extension spring) to the mast
and try out Randall Peters vertical setup.
His claims of; "at least 20s, etc."  sure read enticing to verify.

http://physics.mercer.edu/hpage/new-z.html

Take care, Meredith



On Sun, Nov 16, 2008 at 4:25 PM, Gary Lindgren <gel@.................> wrote:




For the last few months I have been working on a vertical seismometer. 
Or................being as you're mechanically overall part way (~60%) there already.....add more upright vertical support
and a horizontal extension (and a conventional extension spring) to the mast and try out Randall Peters vertical setup.
His claims of; "at least 20s, etc."  sure read enticing to verify.
 
http://physics.mercer.edu/hpage/new-z.html
 
Take care, Meredith