mu-metal Altoids

At 07:54 PM 4/3/05 -0500, Riad S. Wahby wrote:

Thomas Shaddack wrote:

...

Putting the tag into an enclosure made of a feromagnetic material helps, though. Altoids can proved to be a pretty effective shielding.

Clearly we need mu-metal Altoids tins.

Mu-metal is expensive and I've heard that cold-working it reduces its permeability. The idea of ultracheap (ie, disposable) shields is a Good Thing, and better than Enemy of the State's Brin's potato-chip bag elevator stunt. ------- "...ordinary household products (if one were so inclined)..." -TD peroxide + nail polish + sulphuric drain cleaner = TATP