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Treasures of the Earth: Metals

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.

English
  • Originally Aired November 9, 2016
  • Runtime 60 minutes
  • Content Rating United States of America TV-PG
  • Network PBS
  • Created September 12, 2017 by
    Administrator admin
  • Modified September 12, 2017 by
    Administrator admin