Half Ebonite / Half Brass Friction Rod, 0.5 x 12" Lab Supplies_Filtering Supplies Used to draw electrons from

Used to draw electrons from glass and ebonite rods during rubbing

sized so that students can charge an outer pail and watch the inner pails register zero charge during the classic ice-pail demonstration

Built for disarticulated skeleton storage

providing the high-turns winding for transformer ratio and electromagnetic induction demonstrations

5 inch plastic case

Half Ebonite / Half Brass Friction Rod, 0.5 x 12" Lab Supplies_Filtering Supplies Used to draw electrons fromTwelve inch friction rod machined half from ebonite and half from brass, generating opposite charges along its length to compare negative and positive triboelectric behavior side by side.