Science Art: The Sodium D-line Observed with a Four-Prism Spectroscope by Florence Museo FirST

One of a series of videos in which white-gloved technicians from the Florence Fondazione Scienza e Tecnica (Science and Technics Foundation) operate antique scientific equipment, demonstrating how the devices reveal the secrets of nature.

Quietly. Reverently. Meditatively. Efficiently.