PSN-L Email List Message

Subject: Re: Passing solar flare geomagnetic shock wave?
From: CapAAVSO@.......
Date: Tue, 13 Jun 2000 16:27:16 EDT

In a message dated 6/12/00 10:18:52 PM Eastern Daylight Time, 
mlamb1@.......... writes:

<< Actually; for anyone interested...Forcefield/Wondermagnet does
 have afew R45 magnets left (1/4" diameter by 1" long, with the
 poles on each half of the rod diameter,lengthwise), item #16.  This is
 the same magnet I use in the diamagnetic seismometer/aka, "pulse
 magnetometer".....ha.  See:
Hi Meredith,
    I used a row of Wondermagnet's # 13, 1/4 by 1/2"long Neodymium magnets to 
build a magnetometer. They make a very nice strong compass needle but I heard 
somewhere they are more temperature sensitive than Alnico magnets we used to 
use. Can anybody shed any light on this?

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Larry Cochrane <cochrane@..............>