Part 8/13:
Further tests with gauge 26 wire (diameter 0.016 inches), with 390 turns, demonstrate a lower levitation height—around 1.5 inches—due to increased resistance and lower current capacity, despite maintaining the same coil surface area.
Heat Management and Coil Resistance
Throughout the experiments, Paul notes that coils tend to heat up swiftly, especially those with higher windings or resistance. Heat buildup not only affects the coil's structural integrity but also diminishes magnetic field strength, leading to lower levitation heights. He employs heat sensors—tiny tape strips that change color with temperature—to monitor coil temperature and prevent overheating.