This display features several magnet model. We built this for the National Center for Atmospheric Research (NCAR) here in Colorado. This display in the NCAR showroom features a table top computer that reads the marking tags under each model. The program then displays the magnetic fields related to that object.
The program is sophisticated in that it not only represents the magnetic fields, it also shows how they interact with each other. Many adults and children visit NCAR and enjoy this interactive experience.