Description

classroom reference

Anhydrous 500g bottle of laboratory-grade citric acid

Hydra model on stand reveals tentacles

05A resolution

Double Concave Glass Top Spinning Base, 125mm, 20mm Focal Length Chemical_Calcium Carbonate classroom referenceUnusual double concave glass disc on a 125mm spinning base, 12mm thick with a 20mm diverging focal length, the optically true beveled surface fitting rotational and lens based optics demos.

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Double Concave Glass Top Spinning Base, 125mm, 20mm Focal Length Chemical_Calcium Carbonate classroom reference

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