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Iron & Manganese (Fe, Mn) - steel-making
The two key ingredients that enabled the mass production of steel. We travel to Sheffield to get up close to the technological mid-wife, a Bessemer converter.
The two key ingredients that enabled the mass production of steel. We travel to Sheffield - the birthplace of modern steelmaking - to get up close to the technological mid-wife, a Bessemer converter. Plus we visit the modern Forgemasters steelworks, to get a taste of just how hard it is to produce unbreakable parts for nuclear power stations and oil rigs. (Photo: Steel component at Forgemasters Steelworks, Credit: Laurence Knight/成人论坛)
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Elements
Chemical elements: where do we get them and how do they fit into our economy?
