HOW FAR HAVE WE COME SINCE THE STONE AGE? by Viv Forbes, ©2018, carbon-sense.com Allmann, Pixabay, License (Apr. 22, 2018) — Most chapters of human history are defined by the tools and machines that were used. In the Stone Age, the first tools were “green tools” – digging sticks, spears, boomerangs, bows and arrows made […]