Silk Cloth Square for Static Demonstrations, 12 x 12" Material_Bristle Alnico U-shape with 45mm pole

Alnico U-shape with 45mm pole spacing concentrates the field across a small gap

water vascular system

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

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

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

Silk Cloth Square for Static Demonstrations, 12 x 12" Material_Bristle Alnico U-shape with 45mm poleUsed 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.