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

and root development across successive stages for dicot germination teaching

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

this wool cloth is a standard accessory for electroscope and Van de Graaff work

telophase — progress across this plant mitosis model for cell division teaching in biology courses

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.