Treasures of the Earth - Metals - Episode 2 (2016) | Full Documentary | NOVA

Discover how the unique properties of metals have made them a pillar of human civilization. Explore how precious metals resources are forged under extraordinary circumstances deep within the Earth, and discover how their unique properties have helped lift humanity from the Stone Age to the stars. Welcome to PBS America, a channel curated for an international audience from America's Public Broadcasting Service, PBS.

Courtesy of PBS America on YouTube. Watch on YouTube ↗

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