Modern Marvels
Heavy Metals (13x18)
Fecha de emisión: Jun 14, 2006
Some metals are so critical to the US economy the the Federal Government retains a strategic stock pile of them. This program describes how these metals are produced and what they are used for that make them so valuable: copper, iron, lead, nickel, uranium and zinc.
- Estrenada: Nov 1992
- Episodios: 852
- Seguidores: 75
- Finalizado
- History
- Domingo a las 22