Why are metal tools superior to stone tools




















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Our eyes say it! The early human tool kit The short-haired human! The more active metal has to almost completely corrode before the less active iron or steel begins the process. Before iron can be put to any of these uses, however, it has to be mined from the ground. Ease of production plays a huge role in defining a material's worth. The inch centimeter pyramid at the tip of the Washington Monument is actually made of aluminum rather than gold, because gold was less valuable than aluminum in Sign up for our Newsletter!

Mobile Newsletter banner close. Mobile Newsletter chat close. Mobile Newsletter chat dots. It is particularly associated with Homo sapiens neanderthalensis but the tools were also used by Homo sapiens sapiens. The Mousterian stone tool working techniques involved the careful preparation of a stone core before a flake was struck from the core. This could involve shaping the core into a round surface by trimming the edges of the core and then further trimming to shape the flake that is to be struck off.

Only then would the flake be struck off. An alternative system was to shape the core into a prism and then to strike off triangular shaped flakes. Flakes would then be worked with additional trimming to sharpen their edges to produce a better cutting edge. Flakes were produced for many specialized purposes. Hand axes and tools for cutting up meat similar to earlier times were used but were better made and more efficient. New tools such as points for spear heads were made which were attached to a wooden shaft being the first evidence of composite tools being used by hominids.

The Upper Paleolithic tool industry ran from roughly 40, years ago to 12, years ago. The Upper Paleolithic period comprised a series of tool making periods known as the Aurignacian 40, to 28, year ago , the Gravettian 28, to 22, years ago , the Solutrean 22, to 19, years ago and the Magdalenian 18, to 12, years ago.

The Aurignacian was associated with both Homo sapiens neanderthalensis and Homo sapiens sapiens more particularly Cro-Magnon man. The other three periods were exclusively those of Homo sapiens sapiens due to the extinction of Homo sapiens neanderthalensis. The rate of improvement in the quality and variety of tools was much faster in the Upper Paleolithic than in the earlier periods. These improvements included better techniques for the working of raw materials. Before this time technology largely involved the use of only four techniques, those of percussion, whittling, scraping and cutting all of which required only a limited range of hand motions.

In the Upper Paleolithic new techniques were added including pressure flaking, drilling, twisting, grinding and others, which involved different motor abilities than those previously used. Secondly, in the earlier period the main raw materials used were stone, wood and skin.

Later on bone, ivory and antler and less importantly shell and clay were added to the original materials. Thirdly, the number of components in composite tools expanded considerably in the Upper Paleolithic increasing the complexity of the tools used. Fourthly, the number of stages involved in manufacturing artifacts significantly increased in the Upper Paleolithic. Before the Upper Paleolithic manufacturing involved only a short series of single stage operations, while later there were often several stages of manufacture to produce the final product.

The number of processes and techniques had increased as had the degree of conceptualization required to manufacture the product. Dennell, , In the Upper Paleolithic there were substantial improvements in the artifacts available to people.

Hunting equipment improved by the use of narrow bone or ivory points for spears which had greater penetrating power than earlier flint tipped spears. Spear throwers and the bow and arrow were also introduced allowing prey to be killed from a greater distance. That may accidentally have produced metallic tin and lead at the bottom of the campfire because the temperatures to smelt tin and lead are easily achieved in a campfire.

These metals can then be re-melted and cast into the form of ornaments, tools or weapons. Copper created some impact on the ancient world, as it produces good blunt weapons and reasonable armor, but it is still too soft to produce useful blade weapons. Therefore, the smelting of copper did not replace the manufacture of stone weapons, which still produced superior blades.

The presence of arsenic and tin dramatically increased the hardness of copper, producing war-winning weapons and armor. A noble wearing bronze armor was basically impervious to the stone tools of the times, and his bronze sword kept its edge and shattered the older stone-based weapons. The knowledge of how to produce bronze allowed kings to overcome their enemies, and caused such a revolution that it marked the end of the Stone Age and the beginning of the Bronze Age.

It would be millennia, though, until bronze could be used by common soldiers and townsfolk, and for a long time they were luxury items used by nobility. Stone Age All tools and weapons were made of stone.

Though the Bronze Age came before the Iron Age, bronze is actually superior to iron in many ways: Bronze is — less brittle has a lower casting temperature it resists corrosion and rust is stronger However, other factors came into play: 1.



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