Demagnetizing

demagnetizing pads they use at department stores and libraries

How exactly does that system work? They can't instantly demagnetize something with a quick tap on a pad, can they? Also, what are they demagnetizing? Is it a strip embedded in the spine of the book, or is it just in a sticker on the outside? For instance, how do they do it to magazines (or do they? they go through the process with magazines, too, or is that just because they don't know better?)? -- ================================================================= Tobin Fricke, Alias Light Ray dr261@cleveland.freenet.edu TobinTech Engineering KE6WHF Amateur Radio The Digital Forest BBS (714) 586-6142, 28800bps