>From: "John D Nelson"
I personally have not heard of any research in that regard but it certainly would be interesting to pursue it further. I would also be interested in a more detailed write up of how your barometer works.
Marino De Menech
>Reply-To: psn-l@.............. >To: >Subject: Atmospheric Pressure >Date: Tue, 14 Oct 2003 08:22:15 -0500 > >I stumbled into some posts on PSN in the 1996 era regarding atmospheric >pressure changes and their relation, if any to seismic activity. Has >there been any further research in this area? (forgive me for being too >lazy to read 7 years worth of posts to see.) I built an extremely >sensitive barometer using a manometer and optical switch based on a >Scientific American article and later modified it into a "dry" version >using a flexible diaphragm with a magnet on it and a Hall effect sensor. >It measures pressure indirectly by matching atmospheric pressure with a >heated chamber and measures the pressure indirectly as temperature >change of the heated chamber. The liquid version was sensitive to >within about 3/4 inch of water and the dry one is pretty close to that >value. It's pretty hard for me to correlate the pressure changes with >any activity here as seismic activity is pretty small on this piece of >the globe. > >John Nelson
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