APPARATUS TO STUDY PHENOMENON OF MAGNETISM Russian patent published in 1994 - IPC

FIELD: demonstration equipment. SUBSTANCE: apparatus has housing, permanent magnet manufactured in the form of circular ring magnet with asymmetric magnetization, tube made of clear material, first ferromagnetic element anchored inside tube and two additional ferromagnetic elements installed in tube for free movement along its axis within limits from first element to proper stoppers of tube. Tube is mounted in holes of ring magnet and housing for free movement along their axis. With movement of tube with respect to housing with magnetic ring first ferromagnetic element goes out of center of ring and in point where direction of field changes it reverses magnetic polarity and pushes off additional ferromagnetic element which moves in tube to proper stopper. With further movement of tube when ferromagnetic element passes special point additional ferromagnetic element is lifted by rod to touching main ferromagnetic element and it is again attracted to main ferromagnetic element. EFFECT: capability to demonstrate presence of special points in structure of magnetic field. 3 dwg