Equilateral Optical Glass Prism, 26mm Length, 26mm Faces Lab Supplies_Rulers & Measuring Supplies there may be minor imperfections

there may be minor imperfections that do not affect physical function

Air-cooled rheostat with extended-tube ventilation

Demonstrates the one-way current behavior of a rectifier diode rated up to 6A at 400V

including 100 long flexible bonds for delocalized representations and crystal-lattice construction at scale

and composites in a labeled 13 x 10 inch plastic sleeve for materials-classification work

Equilateral Optical Glass Prism, 26mm Length, 26mm Faces Lab Supplies_Rulers & Measuring Supplies there may be minor imperfectionsOptical quality equilateral glass prism at 26 by 26mm, the triangular cross section blank giving classroom grade dispersion for refraction and spectral line experiments.