Deep underground at the Serapeum of Saqqara, massive granite boxes still hold a mirror finish that reflects light even ...

A popular top polisher for polishing the curved tops of monuments, the vertical polishing machine, was introduced around 1890 by the Concord Axle Co. It was suspended from an overhead shed beam and ...

Researchers have uncovered strong evidence that the ancient Chinese used diamonds to grind and polish ceremonial stone burial axes as long as 6,000 years ago -– and incredibly, did so with a level of ...

[Michigan Rocks] says he avoided making rock spheres for a long time on account of the time and cost he imagined was involved. Well, all that is in the past in light of the fabulous results from his ...