This artifact was used to provide stone blades. Blade cores provided a portable source of stone or obsidian for manufacturing different kinds of tools by flaking off pieces from the core. The basis of ...

We know the oldest human cultures only from their most durable parts: mostly stone tools, sometimes bone. Show an experienced Pleistocene archaeologist a chert blade, and they can probably tell you ...

With all those gleaming, stainless-steel tools readied for painful prodding, few people look forward to visiting the dentist. But modern dentistry is a walk in the park compared with archaic methods ...