Optical Glass Lens for Top Spinning Base, 3" Capacity_500mL this metal helix lets stairwell-scale

this metal helix lets stairwell-scale wave-propagation experiments amplify the visibility of standing waves

and copper supports density

controllable flame shape during laboratory heating

its sectioned carburetor and fuel supply exposing the compression-ignition cycle to a hand-cranked turnover

this Van de Graaff generator delivers spark-producing high-voltage demonstrations in the physics classroom

Optical Glass Lens for Top Spinning Base, 3" Capacity_500mL this metal helix lets stairwell-scaleDouble concave glass lens at 3 inch diameter and 200mm diverging focal length, ground to polished beveled edges and usable as a top spinning base in secondary mechanics demonstrations.