Ready to see metal rings leap into the air on their own? Our classic electromagnetic exhibit, "Lenz's Jumping Ring," reveals the secrets of electromagnetic induction through stunning visual phenomena, allowing you to experience the magical power of physics in action! The exhibit features an energized coil, a metal core, and rings made of various materials. Press the power button, place an aluminum ring on the core, and watch it suddenly jump upward when the coil is energized—as if pushed by an invisible force. Experiment with rings of different materials to observe variations in jump height; some soar high while others remain still, each outcome unveiling profound electromagnetic principles. Through the accompanying touchscreen, delve into Lenz's Law: a changing magnetic field induces currents, and these currents generate their own magnetic field that opposes the original change—this "electromagnetic resistance" creates the spectacular jumping effect. WhatsAPP?+86 18882709667