[modeleng] Re: RE Magnetic Chucks.

Charles said:
>Observation 1 -- If it is not electromagnetic and you disassemble it 
without a proper "keeper" between the poles, the magnets will lose much of 
their strength, just like the old two-pole motors for HO/OO trains.<


What is the mechanism that  keeper provides? On the face of it, why should 
an increase in reluctance lead to the domains re-arranging? It's one of 
those things that I know happens, but don't understand why!

Peter Chadwick (out of the country again - no wonder I can never get in 
the workshop!)

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