US$ 77.50
Greatly magnified HIV virion model separates into two parts exposing the outer envelope and interior capsid with RNA
and small diffraction objects in the optical-bench beam path for repeatable interference and diffraction work
a 12V/21W lamp house
Two pith balls suspended on unspun silk from a brass pillar
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.
US$ 77.50
US$ 25.00
US$ 77.50
US$ 12.95
US$ 29.99
US$ 77.50