International Conference on Education and Technology ICET
But it was the use of the wheel as a transformer of energy that revolutionized the application of nonhuman power sources. Continuing improvements led to the furnace and bellows and provided the ability to smelt and forge native metals . The advantages of copper tools over stone, bone, and wooden tools were quickly apparent to early humans, and native copper was probably used from near the beginning of Neolithic times (about 8000 B.C.E.). Native copper does not naturally occur in large amounts, but copper ores are quite common and some of them produce …