Circular Perspex Block for Refraction Science at Home_Earth Science Greatly magnified HIV virion model

Greatly magnified HIV virion model separates into two parts exposing the outer envelope and interior capsid with RNA

Three-wheel stacked metal pulley for maximum mechanical advantage in compound pulley systems

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

Designed for strong divergence demos

Circular Perspex Block for Refraction Science at Home_Earth Science Greatly magnified HIV virion modelRound 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.