Description
Three-wheel stacked metal pulley for maximum mechanical advantage in compound pulley systems
a 12V/21W lamp house
and small diffraction objects in the optical-bench beam path for repeatable interference and diffraction work
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 Three-wheel stacked metal pulley forRound 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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