Miniature Articulated Human Skeleton Model with Stand, 17.5" Tall Physics_Light & Optics Rotation-to-linear gear-rack simple-machine model converting

Rotation-to-linear gear-rack simple-machine model converting circular gear motion into straight-line rack travel

bottle in borosilicate glass holds 125mL with glass stopper for biological oxygen demand testing and water quality analysis

this analog DC ammeter at 0

Converts flowing-water kinetic energy into electricity through a mini water turbine coupled to a dynamo

Miniature Articulated Human Skeleton Model with Stand, 17.5" Tall Physics_Light & Optics Rotation-to-linear gear-rack simple-machine model convertingArticulated joints allow posing the 17. 5 inch skeleton in various positions for kinesiology demonstrations, mounted on a rod stand for tabletop reference.