Did the ancients practice the art of coloring marble, or is it a recent American discovery ? The New York Times, of February 15, 1869, in an editorial headed Marble Coloring, says : The art of ...

The coloring of marble has been practiced a long time, but heretofore its results have not been altogether satisfactory. It has always been considered a difficult process, and the piece of marble ...

Marble machines are a fun and challenging reason to do engineering for the sake of engineering. [Engineezy] adds some color to the theme, building a machine to create 16×16 marble images ...