Part 4/10:
A subtle but significant aspect of the experiment involves the orientation of the magnets' poles. Paul demonstrates how he glues two magnets together with like poles facing each other—north to north and south to south. By doing so, the magnetic field configuration is altered, providing a different dynamic as the magnet passes through the copper tube.
Using magnetic viewing paper, he visually confirms the poles' orientation and observes that the axial divisions of north and south poles are slightly offset from the center, with the lands of the magnetic lines curving upward. This visual confirmation underscores the complexity of magnetic fields and their interaction with conductive materials.