Re: magnet on/off switch

....moves the internal magnet closer to the surface when you twist the knob.

Mjsprite@aol.com wrote:

> Hey everyone,
> I bought a magnetic stand for my dial indicator to use while blueprinting a
> 1380 engine. For the life of me, I can't figure out how this magnet works. A
> simple turn of the switch creates a very powerful magnet in the base. Turn
> the switch back and there's no attraction whatsoever. No batteries or
> electricity. This really intrigues me. Can anyone explain how this works?
> Mike