My 7th grade class watched this entertaining and informative gem before our tour of the Bethlehem Steel plant. The visit included views of multiple towering blast furnaces as well as the recently constructed BOF (basic oxygen furnace). Alas, the mill is no longer operating, however this time-capsule of mid-20th Century American industrial hegemony remains. Disney created this short industrial cartoon documentary for the American Iron and Steel Institute. The science and history of turning iron into steel are presented by the effusive Donald Duck, in possibly his most demanding roll.