Hi all, Looking at Wondermagnets products I see item #16 as a mystery magnet....I can't envision what it was ever used for? http://www.wondermagnet.com/dev/magnet16.html I've seen these before and they are basically two thick sheets of ferrite glued together and (sometimes) painted. Essentially they are 2 magnets together or using another phrase they are a 4 pole magnet. Although somewhat "U" shaped, with a semi-circular cut-out, the conflicting fields present problems with uses like seismic instruments.......they are way too big to handle anyway. The center cutout offers no outstanding field as is. Nothing is known of any accessory soft iron core material exactly. Robert Lamb says he's seen them with a backing plate, and, with a plate that covers roughly the circumference of the hole with two magnets. They almost look like they were originally designed to go part way around a pipe (roughly 3.7" diameter). Some kind of plumbing use? Some kind of early day accelerator use? Dinosaur (cow) pill from swallowing magnetic metorites? OK.....OK....I get carried away....ha. Carry on with your computer glitches.... Meredith Lamb _____________________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>