For creating frictional electricity with materials wool, fur for charging electroscopes etc. Approximate dimensions of solid rods are: (l x 250-300 x 10-13mm. Soda glass, solid.
For creating frictional electricity with materials wool, fur for charging electroscopes etc. Approximate dimensions of solid rods are: (l x 250-300 x 10-13mm. Soda glass, solid.
