Treasures of the Earth: Metals - S44.E6 - NOVA
Gold, bronze, iron, steel... metals are pillars of our civilization, but what makes them so special? Discover their unique properties and explore how our mastery of metals has led us from the stone age to today's hi-tech world.
Treasures of the Earth: Metals - S44.E6 - NOVA
November 9, 2016
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