O-Ring Belt Replacement for Van de Graaff Generator, Single Subject_Astronomy Built to demonstrate the diverging-lens

Built to demonstrate the diverging-lens eyepiece pioneered by Galileo

Paintable and stainable wooden hockey stick supports DIY finishing for display

this 500mL wide-mouth LDPE squeeze rinse bottle features a non-vented cap for controlled directed dispensing

5 mL in a two-tier stackable frame

Heavy 150 x 25 x 15mm Alnico U-shape with clearly marked poles and a keeper bar

O-Ring Belt Replacement for Van de Graaff Generator, Single Subject_Astronomy Built to demonstrate the diverging-lensReplacement Van de Graaff O ring belt sized for the PH0918A and PH0919A generators, the consumable wear part that transfers charge between the drive wheel and the high voltage dome.