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NOVA | Promotion | Treasures of the Earth: Metals Preview

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?

S43 E19 | 0:00:30 | AIRED: 10/4/2016 |
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