Offers compelling insight into how designer Eastwood battled government bureaucrats, corporate patrons, and fellow hydraulic engineers to build seventeen dams in the western U.S. during the early twentieth century based on his innovative multiple-arch design. Reprint.
Dams have been used to control water for thousands of years, with the oldest known dam being a small earthen structure in present-day Jordan dating to c.4000 BCE. Since then, cultures throughout the world have practised the art of dam-building and the technology has evolved in myriad ways. The papers selected here examine the key technical issues influencing dam construction from ancient times to the early 20th century. In addition they illustrate why various human societies have built dams and how ’social’ (or seemingly ’non-technical’) factors have influenced the process of dam design. Though hydraulic engineering is the primary focus of the book, it also reveals a keen interest in questions of water resources and environmental history.
Like many apparently simple devices, the vertical water wheel has been around for so long that it is taken for granted. Yet this "picturesque artifact" was for centuries man's primary mechanical source of power and was the foundation upon which mills and other industries developed. Stronger than a Hundred Men explores the development of the vertical water wheel from its invention in ancient times through its eventual demise as a source of power during the Industrial Revolution. Spanning more than 2000 years, Terry Reynolds's account follows the progression of this labor-saving device from Asia to the Middle East, Europe, and America-covering the evolution of the water wheel itself, the development of dams and reservoirs, and the applications of water power.
The second of a seven-volume series, The Literature of the Agricultural Sciences, this book analyzes the trends in published literature of agricultural engineering during the past century with emphasis on the last forty years. It uses citation analysis and other bibliometric techniques to identify the most important journals, report series, and monographs for the developed countries as well as those in the Third World.
This book documents the old Johnston mill site (1793), which was sold to William Robson in 1810, for $3500. Then George Johnston and his son, built a second mill, a saw mill, on New Hope Creek. This would lead to a law suit with Robson in 1823. Original documents, including many depositions and a letter to Judge Ruffin, tells the whole story. This book covers both of these mill sites and even a third mill site - Charles Johnston on New Hope Creek near Turkey Farm Road. This book has all the deed records, plats, pictures, maps and many drawings, describing the mill operations, and locations. Some basic genealogy is provided on the Johnston, and more so on for the Robson family. Cemetery locations, images of tombstones, and even the slaves burial sites are shown.
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