Description

a cell holder

producing oxygen's characteristic emission lines for spectroscope viewing of atomic-emission and quantum-energy levels

this clear dial provides a readable face for measuring angular displacement in physics setups

Built for the classic thermal-expansion demonstration

Double Concave Glass Lens, 50mm Diameter, 100mm Focal Length, 8mm Thick Geology a cell holderGlass double concave lens at 50mm diameter and 100mm focal length, an 8mm thick blank delivering the same diverging behavior at lower mass for ray box and small mount setups.

Exchange/Return Notes

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Double Concave Glass Lens, 50mm Diameter, 100mm Focal Length, 8mm Thick Geology a cell holder

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