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Ancient American engineering
Ancient American Engineering refers to early American applied scientific and mathematical knowledge used to design and build structures, machines, devices, systems and material prior to the arrival and influence of Western and Eastern Civilizations. This knowledge belonged to the Aztecs, Incas, Mayans, and Anasazi, and covered two continents.
==History==
An analysis of Ancient American Engineering works shows that the engineers adhered strictly to two important principles: the efficient use of the resources available and the effectiveness of a project design. Of the resources available then, the tools were quite rudimentary: none of iron, some of copper and other metals, but mostly of wood and stone. Nor was there any sophisticated means of transportation - only animals for carrying cargo and, even these, only in certain regions. The manual labor, abundant when mobilized by a strong socio-political organization, produced the bulk of the work. Another abundant resource then, compared to now, was time. The construction of many ancient works seems to have been prolonged for decades, if not centuries.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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