Description

8mm rod attachment and a centered 50mm aperture together hold a lens square against an optical-bench rail for repeatable refraction

Used to compare two light sources by sliding them until both faces of a paraffin block appear equally lit

with one pair of leaves

dermal papillae

5 inches each supports crafting projects

Cylindrical Conductor, 12.5 x 5cm Ceramic Labware_Crucibles 8mm rod attachment and aMid sized brass cylinder on an ebonite insulated base, sized so that students can compare its uniform curvature surface charge against sphere and cone partners in the conductor set.

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Cylindrical Conductor, 12.5 x 5cm Ceramic Labware_Crucibles 8mm rod attachment and a

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