Hartley's Rotatable Optical Disc Material_Muslin and troubleshooting exercises

and troubleshooting exercises

a step up from the 70mm model with extended pole separation that gives field-mapping experiments more room along the magnet axis

with a (Br) marking visible on one face for easy identification

a 125 by 65 by 18mm acrylic rectangular block with beveled edges widens the visible refraction shift in Snell's law setups

and 26 SWG - sized as the matched replacement set for the PH0730 sonometer

Hartley's Rotatable Optical Disc Material_Muslin and troubleshooting exercises230mm disc graduated 0 360 degrees in 1 degree steps locks in any position alongside a rotatable lamp house and six magnetic acrylic elements for full ray tracing studies of reflection and refraction.