Electrostatic Pompon Set Light & Optics_Spectroscopy letting students measure rotational distance

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

MEETS DIN ISO STANDARDS || Conforms with DIN ISO 1773 standards for narrow neck conical flasks

sized for repeated classroom-scale field-line mapping with a GHS-compliant safety label

Needle valve and flame stabilizer deliver fine flame control on this liquid propane Bunsen burner for precision chemistry and biology heating work

Square die-cast alloy boss head with metal thumbscrews

Electrostatic Pompon Set Light & Optics_Spectroscopy letting students measure rotational distancePair 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.