Amoeba Proteus Anatomical Model with Extended Pseudopod, 1000x Magnification Material_Hardwood Long-focal double-convex glass lens at

Long-focal double-convex glass lens at 75mm diameter and 500mm focal length

the flywheel light enough to drive by breath for hands-on reciprocating-engine study

measuring period under different loads to isolate mass from weight

sized for low-current circuit work below the 1A range where finer resolution matters more than full-scale capacity

3 glass with excellent strength against breakage

Amoeba Proteus Anatomical Model with Extended Pseudopod, 1000x Magnification Material_Hardwood Long-focal double-convex glass lens atAmoeba Proteus model at 1000x magnification reveals extended pseudopod, contractile vacuoles, and nucleus for single celled organism anatomy teaching.