Dense Flint Glass Prism, 28mm, R=1.62 Length_100mm Six-material drilled ball set with

Six-material drilled ball set with 25mm balls of wood

Used to introduce known resistance into a circuit by removing brass plugs from sealed coil contacts

configurable as a heavy pendulum bob or a demonstration mass for Newton's-first-law setups

this Wimshurst generator builds a visible high-voltage spark

Used as a basic 4mm-plug-to-plug patch wire

Dense Flint Glass Prism, 28mm, R=1.62 Length_100mm Six-material drilled ball set withDense lead flint glass prism at 28mm with refractive index 1. 62, the leaded body giving stronger refraction and dispersion than crown glass for comparing material dependent spectral spread.