Electrostatic Pompon Set Light & Optics_Spectroscopy Diamond lattice kit with 39

Diamond lattice kit with 39 carbon atoms and 60 connectors for building the tetrahedral covalent network that gives diamond its exceptional hardness and optical properties

Animal cell mitosis model displays chromosome condensation

letting students measure rotational distance against linear advance to derive the mechanical advantage of the spiral

Square die-cast alloy boss head with metal thumbscrews

and renal pelvis in a single cutaway for entry-level urinary anatomy teaching

Electrostatic Pompon Set Light & Optics_Spectroscopy Diamond lattice kit with 39Pair of nylon fringed metal pompons on insulated stands that fan into wide cones under mutual repulsion when charged, dramatizing Coulomb repulsion and charge distribution on conductors.