> Steel wool?  Magnesium?
>
> You might want to point out that they should use real steel - common
> 'steel wool' may simply make the problem worse as its made of fine spun
> magnesium - rather flammable and difficult to put out.

Really?  I've lit of steel wool on fire by passing a moderate electric
current through it, and never gotten a flame that would make me think it was
mgnesium...

--Brendan

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