Description
Two pith balls suspended on unspun silk from a brass pillar
and raised molded graduations
and small diffraction objects in the optical-bench beam path for repeatable interference and diffraction work
sized to fit the PH0380A bar-breaking apparatus for repeated thermal-contraction fracture demonstrations
Circular Perspex Block for Refraction Science at Home_Earth Science Two pith balls suspended onRound perspex refraction block, the curved face geometry letting beams enter along any radius for clean Snell's law angle work in ray box and refraction setups.
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