The Gilders Source
Purifying ores to metals such as gold, as well as making colours for cloth and painting is the work of chemists. The ancient past was no different. The records of the Egyptian sciences are not so clear where they do remain but the heirs of this ancient knowledge such as the Greeks and Romans did … Read more
Used in technology, photography, and decorative arts, silver is one of the most versatile metals known to man. In this episode of Modern Marvels we’ll explore the methods, men and machines that extract this precious resource from the earth. In Northern Idaho’s Lucky Friday mine, workers toil more than a mile underground in an around-the-clock … Read more