Force Oscillation and Resonance Demonstration Kit Subcategory_Kinematics Pivoted needle-style electroscope that swings

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

5 newtons for measuring small forces during spring-law and tension-force classroom investigations

Sequential mitosis stages — prophase

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 Pivoted needle-style electroscope that swingsSpeed 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.