But, in my opinion, what caused all these changes was the invention of hand tools. The first known tool dates from 3.3 million years ago, in the middle of the Pliocene era in Kenya, and was implemented to shape raw materials into the desired shape. Axes are believed to date back to 8000 BC. C., when sharp reindeer horns were used.
Modified versions of these antler axes remained popular until 3000 BC. C., when copper and bronze axes were introduced to the Middle East. Iron axes, similar to the classic axes we use today, were invented in 200 BC. C.
If it's not broken, why fix it? There are now approximately 47 different shapes of axes for various trades. These were the new tools used in the 1800s to cut down trees. They were called misery whips because of the past frustration of using a saw. The whips of misery could be kept sharp, and could be a saw for one man or a saw for two people.
These were used to cut down trees, especially large trees. Humans began using stone tools as early as the Paleolithic Age, 2 million years ago. In the museum, stone axes were used to cut meat or skin from animals. In ancient times, bones were even applied as a material for making needles and other tools.
In the Stone Age, humans knew how to use fire. To transfer fire safety, a human being can use two bones to grasp fire. I suppose our ancestors should have discovered that, in order to grasp heavy things, they use the principle of the lever with less effort by tying the sticks with an X-shaped rope. This may be the first clamp.
Technology begins in human history when the first stones, flint or spearheads were deliberately cut. They are known as Oldowan tools or eoliths. It is often difficult for archaeologists to prove that the sharp edges of some stone artifacts are man-made and not the result of natural processes. However, certain improvised tools, such as pebbles and animal bones, show clear signs of wear and tear.
Other tools that have been found with human remains in areas that archaeologists have defined as settlements are clearly man-made. Thus, as the screws unify the specification, the standardization of the tools follows the same pattern. Hand tool, any of the instruments used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing or forging. The current range of tools has as common ancestors the sharp stones that were the keys to early human survival.
Nowadays, rotation is essential for the operation of a multitude of technological hand tools of all families, both percussion and cutting (electric drills, circular saws, etc.). The common denominator of these tools is the extraction of material from a workpiece, usually by some type of cutting. Once understood, the fire helped shape the wooden implements before the right rock tools were available. The first hand tools date back to the Old Stone Age (Paleolithic), the earliest period of human development, which began approximately two million years ago.
Then come the tools of the second family, whose most arcane representatives are the awl and the needle. Among the lever tools, a major breakthrough is the blade with a handle and a concave blade to pierce the ground with an edge under the pressure of the foot. Today, however, the boundaries between some and others have varied, since they have also been renamed hand tools. Some tools, such as electric screwdrivers or drilling machines, for example, despite the fact that they do not use human energy for their operation, are easily transportable and constitute, in fact, a extension of the human hand.
Despite these qualifications, the sequence of stone, bronze and iron is a valuable concept in the early history of tools. The shoemaker (former term for shoemaker) used to make shoes by hand, but now people buy mass-produced shoes and only take them to a repair shop to be worked on by hand. During colonial times, only the metal parts of a tool were sold to a user, who then made his own wooden handle to fit perfectly in his hand. .