Description
Two pith balls suspended on unspun silk from a brass pillar
Six replacement gold leaves cut to fit the standard gold-leaf electroscope
and small diffraction objects in the optical-bench beam path for repeatable interference and diffraction work
and raised molded graduations
running battery-free for repeatable classroom and stockroom use
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.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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