Re: Demagnetizing

[Man In Black <mib@davinci.netaxis.com>]

On Sun, 27 Aug 1995, Tobin T Fricke wrote:

> 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?)?

The way the system works at my local library is that there _is_ a strip 
embedded in the spine and it isn't demagnetized by a quick tap by rubbing 
it several times over a demagnetizer (there's a big sticker on the side 
that says not to leave any magnetic storage media near it).   As far as 
magazines go, my library simply doesn't let people borrow them (which 
means if it ain't there, it's stolen).  Anyone know how they protect 
against magazine theft (okay, no crypto relevance.  reply to me and not 
the list, then).  Later.

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