Equal Mass Cylinder Set, Aluminum, Copper, Tin, Zinc, Lead, 5 Cylinders, 0.5 Inches In Diameter, To Study The Relationship Between Mass & Density, Set Of 5 Cylinders Having Same Mass & Dia 0.50in Varying Lengths.
light leaper accessory, insulating printed circuit board carries a metallic conduction path with six breaks and a binding post at each end, When connected to an operating electrostatic generator, simultaneous sparks occur in each of the breaks as charge flows