From the spear, axe, and sword to today's high tech arsenal, iron weapons have revolutionized warfare. Visit the mines of Minnesota and discover how iron ore is extracted and made into steel. Learn how military-metallurgists create the latest weapons and demonstrate their firepower. Discover iron super magnets, and study the biggest iron magnet of all--the earth! See how iron oxide plays a significant role in creating paints for cars and houses and ink for tattoos and the dollar bill. Finally, it's off to the Moon and Mars to mine iron in space.
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