Equilateral Acrylic Prism, 63mm Length, 63mm Faces Category_Demonstrations 875 inch wooden storage box

875 inch wooden storage box for tactile spatial-reasoning drills and solid-geometry exploration

this intermediate travelling microscope slides a cast iron carriage and swing-over magnifier for precision measurement in school and college labs

energizing spectrum tubes from a 110V source to excite hydrogen

supplying enclosed-wiper variable resistance for student safety

two adjustment screws on a spring-loaded aluminum bar

Equilateral Acrylic Prism, 63mm Length, 63mm Faces Category_Demonstrations 875 inch wooden storage boxPolished 63 by 63mm equilateral acrylic prism with 60 degree angles, the wider square face proportions handling broader incident beams in dispersion and refraction demonstrations.