Dense Flint Glass Prism, 28mm, R=1.62 Length_100mm Used to introduce known resistance

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

Collisions kit with a 48-inch track

Hinged V-section arms grip lenses and mirrors up to 75mm in diameter

Dense Flint Glass Prism, 28mm, R=1.62 Length_100mm Used to introduce known resistanceDense 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.