"Shops have controlled environments, specialized tools, and experienced personnel ... must take proper safety measures throughout the granite cutting process. This includes wearing goggles ...

Three Cleveland Museum of Natural History researchers have proposed a new hypothesis for the origin of stone technology in human evolution.Associate Curator and the Robert J. and Linnet E. Fritz ...

Levallois tools result from a distinctive multistep sequence that efficiently produces lots of useful cutting tools, with minimal wasted stone. Taken together, these two finds make a strong case that ...