The natural process can turn stones like the “ball” of these charts found in fields in Oman into sharp flakes
Michelle R. Beber and Methane I. Ellen
When ancient humans first invented stone tools, they may have been trying to emulate sharp stones that were naturally formed. In other words, there was no need for a major leap in inspiration.
“What our hypothesis does is that it really changes the origin of technology above its head.” Metin Eren at Kent State University in Ohio. Instead of imagining a sharp tool and understanding it…
Source: www.newscientist.com