Battery Eliminator, 1A, Alternate Model Material_Polyethylene and a refractive-fluid vessel form

and a refractive-fluid vessel form the core of this 28-piece geometric optics workstation

Pack of 50 solid rubber stoppers in assorted sizes provides acid and alkali resistance for comprehensive laboratory vessel sealing applications

25-inch rods

sized so that students can compare its uniform-curvature surface charge against sphere and cone partners in the conductor set

500 and 1000 lines/mm gratings

Battery Eliminator, 1A, Alternate Model Material_Polyethylene and a refractive-fluid vessel formUsed to replace dry cell stacks at the bench, this 1A battery eliminator handles AC and DC simultaneously to power circuit experiments without rotating in fresh disposable batteries.