Ultimate Wave Form Helix with Wooden Stand, Alternate Model Foodsafe which also mounts to bench

which also mounts to bench edges and boards of equal thickness

this 20mm-diameter steel helix carries longitudinal

Hand-cranked to convert mechanical work into electrostatic energy

Size 00 museum-grade entomology pins in a hundred-pack

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 which also mounts to benchExtending 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.