25. Manganese: Undercover Operations

From giant prehistoric sharks to clandestine Cold War projects, manganese is an element that has concealed a lot of secrets.

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23. Vanadium: Beauty In The Background

From freeways to firefights to unfathomable depths, vanadium can often be found quietly doing the hardest work.

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14. Silicon: Tool Of All Trades

From prehistoric times right through today, our hand-held tools have been made of silicon.

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