A stone tool attached to a handle made of liquid bitumen to which 55% ocher has been added. It is no longer sticky and can be handled easily. Image courtesy of Patrick Schmidt, University of Tübingen.
Secrets about invention of Glue
Did Neanderthals use glue? Researchers find evidence of its use in the analysis of surprisingly sophisticated 40,000-year-old tools Neanderthals created stone tools held together by a multi-component adhesive, a team of…