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2.4 Algeria North Africa Stone tools Xihoudu [29] 2.4 Shanxi Province, China East Asia Stone tools Renzidong [30] [31] (Renzi Cave) 2.4–2.0 [32] Renzidong, southeast China East Asia Stone tools Controversial [33] [34] Shangchen [35] 2.1 Shaanxi, China East Asia Stone tools and much later hominin remains Drimolen Main Quarry (DMQ) [36] [37] 2
Tool types found in Acheulean assemblages include pointed, cordate, ovate, ficron, and bout-coupé hand-axes (referring to the shapes of the final tool), cleavers, retouched flakes, scrapers, and segmental chopping tools. Materials used were determined by available local stone types; flint is most often associated with the tools but its use is ...
For the most part, stone cores can only be used to a certain extent before they become exhausted cores. As such, it is typically the flakes, or debitage, that are the basis for stone tools. The flakes are shaped using the lithic reduction techniques, allowing for creation of various tools such as arrowheads and handaxes.
Hand axes are a type of the somewhat wider biface group of two-faced tools or weapons. Hand axes were the first prehistoric tools to be recognized as such: the first published representation of a hand axe was drawn by John Frere and appeared in a British publication in 1800. [3] Until that time, their origins were thought to be natural or ...
The earliest alloy used for the production of tools was arsenical bronze/copper, of which e.g. the tools used at Old Kingdom Giza were manufactured. [19] This alloy is harder than the "pure copper", presumed to be used by ancient Egyptians in earlier, now outdated works. [20] In the New Kingdom, the predominant practical alloy was tin bronze. [21]
An abacus (pl.: abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russia, until the adoption of the Hindu–Arabic numeral system. [1] An abacus consists of a two-dimensional array of slidable beads (or similar objects). In their ...
Flake tools can teach us much about human history. Residue analysis can be done to learn what was processed by the flake tools. Use-wear analysis can give archaeologists an idea of what the flake tool was used for. Archaeologists also use a process called re-fitting. This is the technological process of putting rock shards back together in ...
Other times, the simple shape and sharpness serves the designed role. Blades were often employed in the impression process of material culture, assisting ancient humans in imprinting ornate designs into other parts of their material culture. Scrapers, used for hide working or woodworking, or burins, used for engraving, are two common such examples.
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