The discussion centers on whether the magnetic field strength increases linearly with the number of neodymium magnets, specifically comparing multiple smaller cubes to a single larger cube. It suggests using superposition to calculate the combined magnetic fields based on distance. Methods for measuring the magnetic strength include using a balance to determine the weight needed to detach a magnet from iron or employing a spring scale for tension measurements. Additionally, dropping magnets through a wire loop to measure induced voltage is proposed as a way to assess changes in magnetic flux. Overall, the strength of the magnetic field can be evaluated through various experimental approaches.
