to be finely processed before they can become part of cement, ceramics, metals, or other manufactured products.
That means a machine capable of processing enormous quantities of hard material could become an important part of an industrial supply chain.
The final product might be visible—a building, bridge, road, machine, or manufactured object—but the grinding operation that helped create its raw materials often remained hidden from view.
From Industrial Floor to Quiet Landscape
The most intriguing part of a relic like this may be where it is found.
Instead of sitting
