Motor-Driven Van de Graaff Generator with Acrylic Shaft, 200,000V Chemicals_Stains & Dyes 5 inch diameter unit produces

5 inch diameter unit produces a +/-3mm controlled vibration on a string or ripple-tank dipper when driven by an external square-wave generator

ten 4 by 3-inch plane glass mirrors at ~2

microbiology

and root development across successive stages for dicot germination teaching

Half life-size liver model with attached gall bladder shows hepatic lobes

Motor-Driven Van de Graaff Generator with Acrylic Shaft, 200,000V Chemicals_Stains & Dyes 5 inch diameter unit producesVisible through a clear acrylic shaft, this motor driven Van de Graaff generator exposes every stage of charge collection on its silicone belt and aluminum comb assembly.