These are great old magazines, like going back in time...........One =
thing of interest was the magnifying arm.   Has anyone tried this?
Ted
  ----- Original Message -----=20
  From: K.-Benoit Evans=20
  To: psn-l@.................
  Sent: Wednesday, March 10, 2010 5:58 AM
  Subject: Re: Popular Science Seismograph plans (1965)


  Does anyone have an opinion on the Pop Sci seismograph plans from =
1965? Could it be modernized and be useful today?


  =
http://www.popsci.com/archive-viewer?id=3DWiYDAAAAMBAJ&pg=3D135&query=3De=
arthquake+detector




  Regards,


  Beno=EEt Evans








These are great old magazines, like =
going back in=20
time...........One thing of interest was the magnifying arm.   =
Has=20
anyone tried this?
Ted

  
----- Original Message ----- 
  From:=20
  K.-Benoit=20
  Evans 
  
To: psn-l@.............. 
  
Sent: Wednesday, March 10, 2010 =
5:58=20
  AM
  
Subject: Re: Popular Science =
Seismograph=20
  plans (1965)
  

Does anyone have an opinion on the Pop Sci seismograph =
plans=20
  from 1965? Could it be modernized and be useful today?
  


  
http://www.popsci.com/archive-viewer?=
id=3DWiYDAAAAMBAJ&pg=3D135&query=3Dearthquake+detector
  


  

  


  

  

  
Regards,
  


  
Beno=EEt =
Evans