Ultimate Wave Form Helix with Wooden Stand, Alternate Model Foodsafe using metal bearings to minimize

using metal bearings to minimize friction in uniform-acceleration and Newton's-second-law work

this 20mm-diameter steel helix carries longitudinal

Spring-loaded heavy-gauge steel projectile launcher with a string-release trigger

which also mounts to bench edges and boards of equal thickness

producing oxygen's characteristic emission lines for spectroscope viewing of atomic-emission and quantum-energy levels

Ultimate Wave Form Helix with Wooden Stand, Alternate Model Foodsafe using metal bearings to minimizeExtending up to 65 feet from a 20cm closed height on the included wooden stand, this metal helix lets stairwell scale wave propagation experiments amplify the visibility of standing waves.