Silk Cloth Square for Static Demonstrations, 12 x 12" Material_Bristle and inner ear sections support

and inner ear sections support detailed auditory anatomy teaching at 3x enlargement for classroom visibility

supporting a 1

dramatizing Coulomb repulsion and charge distribution on conductors

sized for low-current circuit work below the 1A range where finer resolution matters more than full-scale capacity

Two-inch vinyl-coated fingers on this three-finger extension clamp mount to a swivel boss head fitting rods up to 18mm

Silk Cloth Square for Static Demonstrations, 12 x 12" Material_Bristle and inner ear sections supportUsed to draw electrons from glass and ebonite rods during rubbing, this silk square gives friction rods a strong positive charge for triboelectric and electrostatic demonstrations.