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Effects of magnatism on mice?

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patrickl:
Maybe before you panic about magnetic fields you should test if it even emits a magnetic field  ;D  Try to see if a RVS knife sticks to it.

Won't this "vacuum cleaner engine" be way to big to use as a spinner? Or is it one of those portable dustbusters. I have seen people use harddisk motors for this. I was just cleaning out my old PC stuff and came across a 5.25" floppy drive. The drive motor had a flywheel attached and looked like a spinner already. A tad to wide maybe.

BTW, I doubt a "chicken wire fence" will hold a magnetic field.

NoBonus:
I took the outside of the engine off and I am left with a metal rod with a flywheel (the rotor), top and bottom bearings, and top and bottom brackets.  This will be no wider than the spinner knob itself, but it will be taller than the usual spinner on the inside.  Of course, I could just cut the rod down to size...  A vacuum cleaner motor is only about 6 inches across and most of that is the casing and the exterior magnetic portion of the motor.  The inside section is only about one and a half inches across.

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