Plano-Cylindrical Lens, +10 Diopter State_Solid Used to draw electrons from

Used to draw electrons from glass and ebonite rods during rubbing

Handmade wooden spice rack holds twelve 6-inch borosilicate glass test tubes with caps and includes a filling funnel for kitchen-to-lab cross-over gifting

5A standard rheostat with oxidized constantan winding on a vitreous-enameled steel tube

sized for stringing through small pulley systems or hanging pendulum bobs across multiple demonstration setups

Plano-Cylindrical Lens, +10 Diopter State_Solid Used to draw electrons fromPairs a 50 by 50mm plano cylindrical glass lens with +10 diopter optical power, focusing light along a single axis for astigmatism correction, line focus, and cylindrical optics demos.