High-Inductance Coil Lab Supplies_Scoops & Spatulas setting UV sanitization cycle duration

setting UV sanitization cycle duration and restoring full cabinet function when the original switch fails under classroom use

Coulomb's law

and three low-friction nylon wheels for straight-line momentum experiments

Three-speed manual transmission with reverse in a clear-plated case

Sliding-top wooden box 5 x 2 x 1 inches with a recess sized for a pair of 100mm (4-inch) bar magnets plus their keeper

High-Inductance Coil Lab Supplies_Scoops & Spatulas setting UV sanitization cycle duration1100 turn copper coil on a bobbin sized for a double C core, providing roughly 15 henries of inductance for AC experiments on phase, impedance, and stored magnetic energy.