Dry Field Mapping Kit for Electric Field Visualization Base Size_2.3" Bicycle dynamo on a 4mm-socket

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

Seamless translucent silicon tubing in a 40-inch length with 11 mm outer and 7 mm bore

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

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

and tectonics reshape terrain over geological time

Dry Field Mapping Kit for Electric Field Visualization Base Size_2.3" Bicycle dynamo on a 4mm-socketDesigned 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.