Leyden Jar Manufacturer_hBARSCI Stamped with element symbols for

Stamped with element symbols for quick identification

Built from two counter-rotating foil-sectored plates with a belt drive and a pair of Leyden-jar condensers

and connecting leads mounted on 4mm-socketed bases for building circuits from 40-plus components

and a 1-degree protractor

Fullerene C60 kit with 60 atoms and 90 bonds for building the spherical cage structure characteristic of fullerene carbon allotropes

Leyden Jar Manufacturer_hBARSCI Stamped with element symbols forReproduces Ewald von Kleist's 1745 charge storage device with concentric metal cups around a plastic dielectric, used to demonstrate capacitance and the discharge of stored static charge.