Dimensions 5*5cm, laminate - 66*96mm: The main application is the satisfaction of curiosity. As it turned out, a rare ferrite magnet has poles on both sides - usually their structure is more complicated. 1.JPG" /> I still don't know how it works, so I'm giving pictures of different magnets and the visualizer's reaction to them.
such a magnet is useful for "resetting" the image. In a magnetic field, the plate brightens between the poles (apparently where the magnetic field lines are located along its surface). A plate that changes color in response to a magnetic field.