US$ 76.05
the diverging curvature producing virtual upright images for refraction work
and Moon on repositionable rods
geometry-matched to companion iron
sized for fine-pitch breadboard work where 4mm hardware is too large for the apparatus
Volcanic System Teaching Model State_Solid the diverging curvature producing virtualHand painted volcanic system model on a 75 by 100 cm wall mountable backboard, demonstrating how eruptions unfold and what structural conditions trigger them, with each feature labeled.
US$ 76.05
US$ 112.50
US$ 16.13