The picture diagram shows the evolution of cutting tools in the Stone Age. There are three main views compared from the cutting equipment model 1.4 million years ago and 0.6 million years letter.
From the overall view, the older cutting equipment is more rough than in 0.8 million years ago.
the front view shows that older cutting tools are thin while younger cutting tools are thick in the middle. Contrary to the side view, younger cutting tools are a lot thinner than older ones. The picture of the back view of cutting tools similar to the front one where younger cutting equipment has more volume than make it thick in the middle. The height of cutting tools from both eras are the same around 5 cm.
The overall view of both cutting tools diagrams is mostly the same with the most significant difference is the sharper cutting tools in the younger years.
