Copper smelting - a critical process in metal production - often generates slag, which contains valuable metals. This slag has historically been thrown away, causing harm to the environment and ...

The New York-based International Copper Association Ltd. (ICA) says several of its member corporations are making strides in their work with copper byproducts and circular industry partnerships to ...

Spanish conquerors depended on indigenous expertise to keep up their munitions supplies, archaeologists have found. When Spanish invaders arrived in the Americas, they were generally able to subjugate ...