Hand-Painted 3D Starfish Sectional Anatomical Model on Base, 18 x 16 inch Light & Optics_Spectroscopy Graphite lattice kit whose atoms

Graphite lattice kit whose atoms and connecting rods assemble into planar carbon sheets

Copper-block plug key switch with two 4mm terminals and a removable plastic-guarded plug

with both 4mm stackable sockets and screw terminals so leads wire in without an adapter to either bench standard

Used to produce concentric Newton's rings under monochromatic light

exposing the longitudinal and transverse components of wave motion mechanically

Hand-Painted 3D Starfish Sectional Anatomical Model on Base, 18 x 16 inch Light & Optics_Spectroscopy Graphite lattice kit whose atomsThree dimensional starfish sectional model reveals echinoderm anatomy, water vascular system, and radial symmetry for marine biology teaching.