J’ai trouvé une énorme boule en acier d’environ 150 livres (env. 68 kg) dans un ruisseau près de chez moi. Elle présente de minuscules trous de forage et a laissé s’écouler un liquide noir quand nous l’avons fait rouler. Une idée de ce que ça peut être ?

and laborers who supplied raw materials, and countless others whose work kept factories and processing plants running.

Much of that labor was repetitive and physically demanding.

The machines may have been enormous, but they still required human hands and human judgment.

Every polished building, manufactured product, or piece of infrastructure has a story that extends far beyond the finished object. Somewhere in that chain are the raw materials, the processing plants, the machinery, and the people who made everything possible.

A Forgotten Workhorse With a Story to Tell

Today, a