Leyden Jar Manufacturer_hBARSCI each 20mm on edge with

each 20mm on edge with a top hook for suspending in water during Archimedes-principle and buoyancy experiments

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

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

this 2-pack of 20oz Griffin-shape borosilicate beakers adds a pouring spout for everyday home use

Leyden Jar Manufacturer_hBARSCI each 20mm on edge withReproduces 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.