This book is the most comprehensive empirical study to date of the social and technical aspects of milling during the ancient and medieval periods.Drawing on the latest archaeological evidence and historical studies, the book examines the chronological development and technical details of handmills, beast mills, watermills and windmills from the first millennium BCE to c. 1500. It discusses the many and varied uses to which mills were turned in the civilisations of Rome, China, Islam and Europe, and the many types of mill that existed.The book also includes comparative regional studies of the social and economic significance of milling, and tackles several important historiographical issues, such as whether technological stagnation was a characteristic of late Antiquity, whether there was an industrial revolution" in the European Middle Ages based on waterpower, and how contemporary studies in the social shaping of technology can shed light on the study of pre-modern technology."
Explains The Earth Is Always Changing, How Wind And Water Can Be Useful Resources But Also Can Cause Erosion, And Discusses Weather Changes.
In reality, only a fraction of this theoretical maximum power is obtained even by the best designed turbines. 1.2.1 Practical extractable power and power coefficient Cp The power extractable by a practical wind turbine is much less than ...
A collection of maritime writings inspired by life on the New England coast captures key moments from the author's more than sixty years of cruising, sailing, and interacting with his neighbors, in a volume that explores such topics as ...
Once these 'reverse salients' – to use a term coined by Thomas Hughes – were ironed out, the technology had proven itself sufficiently to encourage its more widespread adoption. For a general discussion of reverse salients in the ...
Earth is a beautiful place See some of its most amazing sights as you find out how Wind and Water Shape the Land. Sing along as you explore What Shapes Our Earth This hardcover book comes with CD and online music access.
Wind, Water, Sun: A Solo Kayak Journey Along Baja California's Desert Coastline
A variable - delivery pump implies additional complexity and first costs not only due to the speed , or stroke , control apparatus itself but also as a consequence of the increased loads acting on the wind water pumper , particularly in ...
Caroline Wickham-Jones provides a highly readable and informative overview of Orkney's archaeological heritage, illustrated with beautiful photography.
How do you hug a spirit? Better to ask how the Spirit hugs you. It is my earnest hope and desire that you feel His embrace as you read this work. Includes illustrations, bibliography, and Scripture index.
Using a series of full-color visual breakdowns and diagrams, this book gives you a clear, concise understanding of what it takes to create credible, compelling effects in your own projects.