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Irrigation has long been of interest in the study of the past. Many early civilizations were located in river valleys, and irrigation was of great economic importance for many early states because of the key role it played in producing an agricultural surplus, which was the main source of wealth and the basis of political power for the elites who controlled it. Agricultural surplus was also necessary to maintain the very features of statehood, such as urbanism, full-time labor specialization, state institutions, and status hierarchy. Yet, the presence of large-scale or complex irrigation systems does not necessarily mean that they were under centralized control. While some early states organ...
Market_Desc: Departments: Mechanical, Aerospace, Civil and Petroleum Engineering, Engineering Mechanics, Courses: Engineering Measurements & Lab, Engineering Instrumentation, Cluster with: Figliola/Measurements. Special Features: Emphasis on electronic measurements, basics of electronic circuits. · New problems throughout text. Material on the basics of electronic circuits presents the basic fundamental principles of electronics for better comprehension of the operation of instrument systems. · Detailed model of piezoelectric sensor behavior and built-in voltage follower circuit description helps the engineering student understand the implications of how the sensor is connected to the outs...
The world's bestselling thriller writer, James Patterson, is partnering with Discovery ID again to develop all-new true crime stories where murder isn't always the worst thing that can happen to you. MURDER OF INNOCENCE (with Max DiLallo) It's impossible to resist Andrew Luster. He's rich, charming, good-looking, and dozens of women have fallen under his spell. But there's a very dark, very dangerous side to his womanising. And it'll take a global manhunt to put him behind bars. A MURDEROUS AFFAIR (with Andrew Bourelle) Mark Putnam is a rookie FBI agent given his first assignment in a remote part of Kentucky. When female informant Susan Smith helps him make a big break in an important case, rumours begin circulating about an affair and a pregnancy. Then Susan suddenly disappears . . .