Description

stable triggering to 30 MHz

55mm diameter on a 125g reel

exposing every wire and hammer so students trace the bell's electromagnetic action

this enlarged Hydra dissection model reveals internal anatomy

Optically Worked Double Convex Glass Lens, 200mm Focal Length, 38mm Diameter Features_Spout stable triggering to 30 MHzOptically 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 stable triggering to 30 MHz

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