In a message dated 6/11/00 1:38:07 PM Eastern Daylight Time, mlamb1@.......... writes: << With enough shielding, then it may show somewhat more seismic signals, both here or in the country. >> ------------------------------------------------------------------------------ ----- Hi Meredith, I have a couple of square feet of 1/32 thick mu-metal. Tell me how much you need to shield your seismometer's magnets and I'll cut off a piece and send it to you. It will be interesting to see what shielding it can do. I'll need your postal mailing address though. << Have to confess my ignorance....what does the AAVSO stand for in your email address? Your full name? Any web site? Curiosity of course.>> AAVSO stands for American Association of Variable Star Observers. AAVSO has a solar division that publishes a monthly Solar Bulletin. The current May issue of the Bulletin has a recording of the big magnetic storm of 24 May. It was made with a homemade torsion-pendulum magnetometer. There are also complete instructions how to build a flux gate magnetometer for a little over $50. These include the schematic, a circuit board layout, parts list and two pages describing how the flux gate works. If you, or anyone else, would like a copy, just send me a self addressed envelope at my address below and I'll be glad to send a copy. Casper H. Hossfield PO Box 23 New Milford, NY 10959 __________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>