Description

55mm diameter on a 125g reel

Wide-field 100mm reading magnifier with a 15cm focal length

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

Taenia solium tapeworm model demonstrates parasitic anatomy

stable triggering to 30 MHz

Optically Worked Double Convex Glass Lens, 200mm Focal Length, 38mm Diameter Features_Spout 55mm diameter on a 125gOptically 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.

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Optically Worked Double Convex Glass Lens, 200mm Focal Length, 38mm Diameter Features_Spout 55mm diameter on a 125g

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