Hollow Acrylic Semi-Circle for Refraction Index Study, 3 x 1.5 x 1.75" Subject_Anatomy Pea seed germination model traces

Pea seed germination model traces cotyledon splitting

2A rheostat with oxidized constantan winding on a 300x44mm vitreous-enameled tube

3125 inch thickness

sized as a generic spare in the PH1118 demonstration-meter scale series for swap-in classroom use

Pairs 75 by 50mm with 18mm thickness on an acrylic rectangular refraction block

Hollow Acrylic Semi-Circle for Refraction Index Study, 3 x 1.5 x 1.75" Subject_Anatomy Pea seed germination model tracesAcrylic semi circular block measuring 3 x 1. 5 x 1. 75 inches with a center indicator line, used to study Snell's law, total internal reflection, and critical angle behavior.