Precision Aluminum Force Table, 40cm Diameter Capacity_25mL relating photon frequency to the

relating photon frequency to the kinetic energy of emitted electrons for quantum physics investigations

fanning apart visibly when a charged rod approaches to demonstrate electrostatic repulsion and induction

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

Square die-cast alloy boss head with metal thumbscrews

Food-grade peroxide test strips in a 50-strip vial calibrated for the 3 to 10 percent concentration range

Precision Aluminum Force Table, 40cm Diameter Capacity_25mL relating photon frequency to theAluminum 40cm precision force table with tapped pulley positions and central ring assembly for resolving and composing force vectors under equilibrium conditions.