Dry Field Mapping Kit for Electric Field Visualization Base Size_2.3" and tectonics reshape terrain over

and tectonics reshape terrain over geological time

Wide-range triple-scale moving-coil DC voltmeter at 0-3V

Portable compact magnetic stirrer with a 4-inch round plate

Bicycle dynamo on a 4mm-socket base with a parallel-wired MES lamp and 2

this simple tangent galvanometer turns Oersted's effect into a quantitative ammeter calibrated against Earth's field

Dry Field Mapping Kit for Electric Field Visualization Base Size_2.3" and tectonics reshape terrain overDesigned to let students draw their own electrodes on conductive graph paper and trace equipotential lines with a multimeter, this kit makes electric field patterns visible without high voltage.