Variable Angle Glass Prism, 10° x 10° x 160° Geology_Globes Amoeba Proteus model at 1000x

Amoeba Proteus model at 1000x magnification reveals extended pseudopod

Six-slot polished wood rack with integrated draining pins holds 25mm test tubes and supports post-wash inversion drying in teaching chemistry labs

Polystyrene electrolyzer with a transparent cone-shaped cup over a banana-socket base

237kg hooked masses for measuring spring extension under load and calculating spring constants

Variable Angle Glass Prism, 10° x 10° x 160° Geology_Globes Amoeba Proteus model at 1000xPairs a 10 apex with 10 x 10 x 160 geometry on a glass prism, the slightly wider apex stepping deviation up from the 5 prism for systematic angle versus deviation series.