Magnetic field viewer paper
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Description
A simple yet effective demonstration of magnetic
fields using an impressive new material which
responds visually to any magnetic field placed nearby.
The ‘paper’ consists of a thin plastic sheet which has
tiny cells containing colloidal iron. When a magnet is
placed close to the paper the iron in each of the cells
will align, and form a pattern on the paper. Great for
placing a strip around the Eddy Current/Lenz’s Law
apparatus, to watch the progress of the magnet down
the tube! The paper comes in pieces approx. 28 x 28
mm and can be cut using scissors if required.