Amoeba Proteus Anatomical Model with Extended Pseudopod, 1000x Magnification Material_Hardwood One-inch brass ball that threads

One-inch brass ball that threads onto a pendulum string as a heavier metal counterpart to aluminum or steel balls in mass-dependent periodic-motion investigations

and block and tackle

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

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 One-inch brass ball that threadsAmoeba Proteus model at 1000x magnification reveals extended pseudopod, contractile vacuoles, and nucleus for single celled organism anatomy teaching.