S43 E19: Treasures of the Earth: Metals

The enduring luster of gold, the conductivity of copper, the strength of steel—the special properties of metals have reshaped societies and defined eras; they have such an important role in human history that entire ages have been named after them. But what gives metals their astounding characteristics?
Aired: 8/16/2018 | 0:53:40 | Expires: 9/25/2020
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