Description

5 inch base for precise angle measurement during wave-optics investigations

7 inches with stopper

a cell holder

Two-hundred-fifty-gram push-pull balance in an acrylic tubular body

producing a spread of spring constants for Hooke's-Law and mass-spring comparison work in introductory mechanics

Double Concave Glass Lens, 50mm Diameter, 100mm Focal Length, 8mm Thick Geology 5 inch base for preciseGlass 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.

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Double Concave Glass Lens, 50mm Diameter, 100mm Focal Length, 8mm Thick Geology 5 inch base for precise

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