Dry Field Mapping Kit for Electric Field Visualization Base Size_2.3" Non-conductive and waterproof fifteen-meter fiberglass

Non-conductive and waterproof fifteen-meter fiberglass tape measure with PVC coating and a flush winding handle

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

the shorter focus delivering more magnification at the cost of field of view

each structure individually labeled for plate-tectonics units

Dry Field Mapping Kit for Electric Field Visualization Base Size_2.3" Non-conductive and waterproof fifteen-meter fiberglassDesigned 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.