Optically Worked Double Convex Glass Lens, 200mm Focal Length, 38mm Diameter Features_Spout this enlarged Hydra dissection model

this enlarged Hydra dissection model reveals internal anatomy

55mm diameter on a 125g reel

sized for resistivity experiments and rheostat construction where small-cross-section copper-nickel is required

guided exercises that interact with the Emission Control simulator

sized for measuring direction and field strength on the lab bench

Optically Worked Double Convex Glass Lens, 200mm Focal Length, 38mm Diameter Features_Spout this enlarged Hydra dissection modelOptically worked glass double convex lens with a 200mm focal length and 1. 5 inch diameter, polished and ground for image formation and refraction demonstrations in physics.