superconductor

Veritasium tells the story of how Shuji Nakamura and others made the blue LED, long thought nearly impossible. It covers the materials challenge of gallium nitride and the persistence it took.

A 105-minute film of a West African smith family in Burkina Faso smelting iron from ore, from making charcoal and building the kiln to forging tools. It is a cultural recreation filmed for the camera, not current practice.

A short IBM behind-the-scenes documentary on how researchers moved individual atoms to make the world's smallest movie. It introduces the scientists and their work on atomic memory and data storage.