PSN-L Email List Message

Subject: Re: Folded Pendulum
From: "David H. Youden" dyouden@.........
Date: Thu, 13 Mar 2003 09:38:40 -0500


I have a hard time believing that Nils Lindenblad actually invented the
folded pendulum in 1967. I intend to do a bit of research to try to
determine whether or not he did. If anyone out there knows anything about
the history of this, or similar, devices, please let the rest of us know.

Personally, I have no objection to calling the device that I built a
"Lindenblad Seismometer", but only if he is the inventor.


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