US$ 25.99
110 ohms at 1-ohm resolution
holding twelve tubes up to 22 mm diameter for classroom and professional bench setups
and three low-friction nylon wheels for straight-line momentum experiments
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
sized as a class-pack for reflection
Plano-Cylindrical Lens, +10 Diopter State_Solid 110 ohms at 1-ohm resolutionPairs 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.
US$ 25.99
US$ 15.99
US$ 15.99
US$ 107.95
US$ 32.99