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The earliest recognized use o f wind power is the crusing s hip; the earliest record of a ship under sail is that of a Nile boat dating to the 8th-millennium BCE. From prehistoric instances, Egyptians probably used the power of the annual flooding of the Nile to irrigate their lands, progressively studying to regulate much of it through purposely built irrigation channels and "catch" basins. The historical Sumerians in Mesopotamia used a fancy system of canals and levees to divert water from the Tigris and Euphrates rivers for irrigation. It has helped develop more superior economies (including right now's international economy) and has allowed the rise of a leisure class. Many technological processes produce unwanted by-products often recognized as pollution and deplete pure resources to the detriment of Earth's setting. Innovations have always influenced the values of a society and raised new questions in the ethics of technology. The wheel might be one of the ne...

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