Ticker Tape Holder Stand with Steel Rod and Base Capacity_125mL Plastic-resin Hall's carriage at 5

Plastic-resin Hall's carriage at 5

providing a measurable projection surface for sizing real images formed by lenses and concave mirrors

Four 153 x 76mm plates - each holding 98 iron-rod plotting compasses in a 14 x 7 matrix - assemble flat or as the faces of a cube to display 2D and 3D field-line patterns

Stable-resistance 22 SWG bare constantan wire on a 125g reel

and refraction blocks during ray-box and spectrometer experiments

Ticker Tape Holder Stand with Steel Rod and Base Capacity_125mL Plastic-resin Hall's carriage at 5Ticker tape holder stand with a 10mm stainless steel rod on a textured metal base, sized for adjustable tape roll mounting during velocity and acceleration experiments.