Ripple Tank, Overhead, Dimensions: 15.5inx12inx4in, 6V DC power source and an overhead projector are required, demonstrates the generation, propagation, reflection, interference and diffraction of waves
Tesla Coil, Tabletop, 220/240V, 50/60Hz, hands-free. It teaches about transformer, electromagnetism, resonating electrical circuit, inductance, capacitance, power transmission. The set consists of two antenna plate, small neon lightbulb, mini discharge electrode and lamp socket.