Ruby Vs. Sapphire Secret
17:14–18:23 · 69s
The hosts learn rubies and sapphires are chemically identical aluminum-oxide crystals; their colors hinge solely on which metal impurity sneaks in.
17:14–18:23 · 69s
The hosts learn rubies and sapphires are chemically identical aluminum-oxide crystals; their colors hinge solely on which metal impurity sneaks in.
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