Apparatus for demonstrating and studying in depth the law of the moment of inertia

摘要

The invention relates to an apparatus for proving, in a real way, the Newton law which explains the moment of inertia, it consists of a permanent magnet 1 which has the shape of a disc, fitted to the bottom of the apparatus. Facing the upper surface of this magnet there is another magnet 2 which is fixed to the middle of a ring 3, by virtue of a wheel 4. Thus the circular body which faces the lower permanent magnet in effect represents a single independent wheel. The ring 3 which crowns this wheel 4 is itself an independent magnet which faces a fourth permanent magnet 6 in the shape of a hollow cylinder, a fifth permanent magnet 20 is fixed to the middle of the cover 8 and faces a disc 21 fixed on the upper surface of the wheel 4. All the other poles which face each other have a similar polarity. The apparatus is fixed within a circular housing 7 emptied of air. A motor is provided to set the wheel 5 in rotation at a sufficiently high speed. IMAGE