Iron, How Did They Make It, Part IVa: Steel Yourself
Will this series go on to cover the Bessemer converter?<p>That changed the world. For millennia, steel was a high-cost, low-volume item, like titanium today. Then, in the 1850s, Bessemer and others finally figured out how to scale up steel making. Suddenly production went from blacksmith-scale to tens of tons per hour.