US$ 60.00
tightened with an Allen wrench for constructing lattice frameworks on laboratory benches
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
Hand-driven Newton's color disc that spins seven painted segments fast enough to merge into apparent white through persistence-of-vision and additive color mixing
Force Oscillation and Resonance Demonstration Kit Subcategory_Kinematics tightened with an Allen wrenchSpeed 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.
US$ 60.00
US$ 223.56
US$ 49.99
US$ 35.99
US$ 21.99
US$ 42.23