Double Extra Dense Flint Glass Prism, 1.25", R=1.71-1.74 Prong_3 Hand-cranked friction-wheel drive sandwiched between

Hand-cranked friction-wheel drive sandwiched between clear acrylic plates

exposing the longitudinal and transverse components of wave motion mechanically

with side arms bent at right angles and formed into jets at their tips

dropping a chosen capacitor into a circuit without unsoldering during introductory RC-circuit and resonance investigations at the bench

Double Extra Dense Flint Glass Prism, 1.25", R=1.71-1.74 Prong_3 Hand-cranked friction-wheel drive sandwiched betweenDouble extra dense flint glass prism at 1. 25 inch sides with refractive index between 1. 71 and 1. 74, the heaviest leaded flint giving the strongest dispersion in the comparison kit.