Force Oscillation and Resonance Demonstration Kit Subcategory_Kinematics 5 inches with a brass-chrome

5 inches with a brass-chrome water wheel in a 10cm aluminum casing

Four-finish Leslie's cube in tinplate at 13cm per side — blackened

Sequential mitosis stages — prophase

Pivoted needle-style electroscope that swings on its axis when a charge is applied

2A with constantan winding on a vitreous-enameled steel tube and a nickel-plated phosphor-bronze sliding contact

Force Oscillation and Resonance Demonstration Kit Subcategory_Kinematics 5 inches with a brass-chromeSpeed controlled 6V motor driving two cams pumps four spring mass systems at any chosen frequency, letting students sweep through resonance and watch amplitude peak when drive matches natural pitch.