Straight Cone to Flexible Tubing Rotaflow Stopcock Adapter, 29/32 Cone, Borosilicate Glass Base Shape_Rectangular modeling the principle behind fiber

modeling the principle behind fiber optics

Ten-pack of cast-iron replacement rods at 70mm long and 6mm diameter

230mm 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

and a right-side zero reset

spectral-line

Straight Cone to Flexible Tubing Rotaflow Stopcock Adapter, 29/32 Cone, Borosilicate Glass Base Shape_Rectangular modeling the principle behind fiberStraight cone to flexible tubing Rotaflow stopcock in borosilicate glass provides controlled flow between ground joint apparatus and rubber tubing.