Description
Designed for strong divergence demos
running battery-free for repeatable classroom and stockroom use
a 12V/21W lamp house
Two pith balls suspended on unspun silk from a brass pillar
sized to fit the PH0380A bar-breaking apparatus for repeated thermal-contraction fracture demonstrations
Circular Perspex Block for Refraction Science at Home_Earth Science Designed for strong divergence demosRound 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.
Exchange/Return Notes
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