Human Skeletal System Model Hypotenuse_50mm running directly from solar-cell output

running directly from solar-cell output to demonstrate the light-to-electrical-to-mechanical chain

4A single-phase rheostat with cover-protected constantan winding on a 200x56mm tube and 4mm safety socket terminals

Aluminum-cased plotting compass with a glass face and a dial marked with principal points

the smallest three-wire option for very early counting and number-sense work

Human Skeletal System Model Hypotenuse_50mm running directly from solar-cell outputNumbered desktop skeletal model mounted on a base positions every bone in natural anatomical alignment, supporting skeletal identification coursework with a key card.