I have 3 names for these things. Ferrophoto, Magnagraph and magnet field imprint. A number of regular magnets were used to make this Ferrophoto. Can you guess how many ?
From @briankerr
I have 3 names for these things. Ferrophoto, Magnagraph and magnet field imprint. A number of regular magnets were used to make this Ferrophoto. Can you guess how many ?