The allure of scientific exploration lies not only in observing phenomena, but also in changing conditions, comparing results, and summarizing patterns. The Lenz jumping ring provides an excellent experimental platform. The height the metal ring jumps essentially depends on the interplay between the electromagnetic repulsion generated by induced eddy currents and the ring's own weight. The magnitude of this force is related to several factors: the electrical conductivity of the metal material (e.g., aluminum has high conductivity, generating stronger eddy currents and resulting in a higher jump), the integrity of the ring (a ring with a notch cannot form a complete eddy current path, weakening the force or even preventing the jump), and the strength and rate of change of the driving magnetic field. By systematically changing these variables, visitors can uncover the rich principles of electromagnetism and materials science behind a simple "ring jumping" action, experiencing the joy of
