6-Piece Acrylic Prism and Lens Set with Wooden Storage Geology_Geology Charts & Models Two rectangular slots accept square

Two rectangular slots accept square or round rods up to 16 mm in this aluminum alloy multipurpose clamp holder

providing the standard mid-range value for current-limiting LEDs and dropping resistors in student circuits

Built from two counter-rotating foil-sectored plates with a belt drive and a pair of Leyden-jar condensers

and vascular tissue at greatly magnified scale

demonstrating mechanical-to-electrical energy conversion as the crank lights the bulb

6-Piece Acrylic Prism and Lens Set with Wooden Storage Geology_Geology Charts & Models Two rectangular slots accept squareSix piece transparent acrylic prism and lens set with all faces polished, packaged in a wooden storage box, covering core dispersion and refraction shapes for ray box optics work.