Energy Tube, teaching resource for an array of scientific concepts: open and closed circuits, conductors vs. Insulators, light waves, sound waves,currents, and energy, When a conductor touches both of the electrodes on tube, tube emits a sound and flashing red/green/blue LED lights
Dry Field Mapping Kit, includes cork-covered base, 30cmx26cm; pad of 25 sheets pre-printed conductive paper 28cmx21.5cm; pad of 100 sheets preprinted paper for drawing fields; ten metal-headed push pins; a silver conductive pen
Induction Apparatus, Operating Voltage: 2-12 V, Dcframe Coil: Approx. 185X125 mm2, Total Dimensions: Approx. 585X200X55 mm3, Demonstrating The Induced Voltage In A Frame Coil That Is Moved Through The Magnetic Field Produced By A Magnet Plate Of Limited Area.