"Jeff Root" bravely wrote to "All" (09 Sep 03 16:47:11)
--- on the heady topic of " Magnetic lines of force"

JR From: (Jeff Root)

JR When I've played with iron filings and magnets in the past,
JR the effect of friction between the filings and paper has always
JR seemed obvious. I'm not sure that I would learn anything from
JR using a low-friction surface instead (what seemed obvious might
JR not even be real), but I'll try it if I can. Do you have any
JR suggestions for a low-friction material to put between the
JR filings and the magnet?

Yes try to place the iron filings in a bottle filled with oil or water.
Then shake it so they are all in suspension then try your magnets.

Asimov
******

.... Diagonally parked in a parallel universe.