Before factories and automation, steel was made by hand—slowly and deliberately. This video follows the traditional Japanese process of making tamahagane steel using iron sand, charcoal, and a clay ...

Making steel produces a lot of greenhouse-gas emissions. Now, construction is underway in Sweden on an industrial-scale plant that will emit almost zero carbon dioxide. Boston Metal, LKAB, Midrex, ...

If you spend enough time working with steel, you start to notice something strange. Two parts, same material, same settings, same machine—and yet the results don’t always match. For many operators, ...