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Monday, August 23, 2010

Technological Evolution




* Originally fields were cleared of weeds and prepared for planting by hand at great effort, using primitive hoes or digging sticks

* The invention of the scratch plow (also called 'plough') about 6,000 years ago was a great labor-saving device for humans - the beginning of systematic substitution of other forms of energy, in this case animal power, for human muscles

* The Muslim Farmers in North Africa and the Near East of the Medieval world are credited with inventions of extensive irrigation based on hydraulic and hydrostatic principles such as norias, water mills, water raising machines, dams and reservoirs



* The Renaissance saw the innovation of the three field system of crop rotation and wide spread usage of the moldboard plow

* The early phase of Industrial Revolution witnessed new agricultural practices like enclosure, mechanization, four-field crop rotation and selective breeding

* The science-driven innovations of 19th and 20th centuries led to the mechanization of the cultivation, i.e. the use of tractors.

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