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Author: Richard Leslie Hills Publisher: Cambridge University Press ISBN: 9780521566865 Category : Science Languages : en Pages : 340
Book Description
The wind is a fickle source of power. Windspeeds are frequently too low to be of any practical use, so that windpower has generally remained a marginal resource. Since the inception of windpower around 1000 AD, technology has been deployed to obtain the most economical power from wind. The author traces its technical evolution, concentrating on the growth in understanding of wind and charting crucial developments in windmill design. The history of the windmill is focused on North Western Europe, drawing on the origins of the first horizontal windmills in Persia, Tibet and China. Industrial applications such as in textiles, papermaking and mining are examined. Gradually, windmills were improved but were finally eclipsed by steam engines in the nineteenth century due to increased levels of industrialisation. The book concludes with a look at the recent re-emergence of windpower as a viable source of power in the wake of the energy crisis.
Author: Richard Leslie Hills Publisher: Cambridge University Press ISBN: 9780521566865 Category : Science Languages : en Pages : 340
Book Description
The wind is a fickle source of power. Windspeeds are frequently too low to be of any practical use, so that windpower has generally remained a marginal resource. Since the inception of windpower around 1000 AD, technology has been deployed to obtain the most economical power from wind. The author traces its technical evolution, concentrating on the growth in understanding of wind and charting crucial developments in windmill design. The history of the windmill is focused on North Western Europe, drawing on the origins of the first horizontal windmills in Persia, Tibet and China. Industrial applications such as in textiles, papermaking and mining are examined. Gradually, windmills were improved but were finally eclipsed by steam engines in the nineteenth century due to increased levels of industrialisation. The book concludes with a look at the recent re-emergence of windpower as a viable source of power in the wake of the energy crisis.
Author: Stephanie Gertler Publisher: ISBN: 9780709078753 Category : College teachers Languages : en Pages : 224
Book Description
Olivia and Carl appear to have the perfect life: a son and a daughter, weekends on Cape Cod and satisfying jobs as professors at Belvedere College in a picturesque Massachusetts town. Until, one day, the seemingly stable and dependable Carl disappears without a trace, leaving behind only a cryptic note. Alone and terrified, Olivia cannot help but relive the long-buried pain she felt when she lost her first husband. While Carl travels back to his childhood hometown to confront the demons he has always hidden from his wife, Olivia must take a journey of her own to make peace with the memories that haunt her. Told with unflinching honesty, The Windmill is a story of the secrets we are entitled to keep and those that must be shared.
Author: William Kamkwamba Publisher: Harper Collins ISBN: 006193769X Category : Biography & Autobiography Languages : en Pages : 324
Book Description
Now a Netflix Film, Starring and Directed by Chiwetel Ejiofor of 12 Years a Slave William Kamkwamba was born in Malawi, a country where magic ruled and modern science was mystery. It was also a land withered by drought and hunger. But William had read about windmills, and he dreamed of building one that would bring to his small village a set of luxuries that only 2 percent of Malawians could enjoy: electricity and running water. His neighbors called him misala—crazy—but William refused to let go of his dreams. With a small pile of once-forgotten science textbooks; some scrap metal, tractor parts, and bicycle halves; and an armory of curiosity and determination, he embarked on a daring plan to forge an unlikely contraption and small miracle that would change the lives around him. The Boy Who Harnessed the Wind is a remarkable true story about human inventiveness and its power to overcome crippling adversity. It will inspire anyone who doubts the power of one individual's ability to change his community and better the lives of those around him.
Author: William Kamkwamba Publisher: Penguin ISBN: 1101637420 Category : Juvenile Nonfiction Languages : en Pages : 313
Book Description
Now a Netflix film starring and directed by Chiwetel Ejiofor, this is a gripping memoir of survival and perseverance about the heroic young inventor who brought electricity to his Malawian village. When a terrible drought struck William Kamkwamba's tiny village in Malawi, his family lost all of the season's crops, leaving them with nothing to eat and nothing to sell. William began to explore science books in his village library, looking for a solution. There, he came up with the idea that would change his family's life forever: he could build a windmill. Made out of scrap metal and old bicycle parts, William's windmill brought electricity to his home and helped his family pump the water they needed to farm the land. Retold for a younger audience, this exciting memoir shows how, even in a desperate situation, one boy's brilliant idea can light up the world. Complete with photographs, illustrations, and an epilogue that will bring readers up to date on William's story, this is the perfect edition to read and share with the whole family.
Author: Justine Fontes Publisher: The Rosen Publishing Group, Inc ISBN: 1607548704 Category : Juvenile Fiction Languages : en Pages : 50
Book Description
Vampires have long captured peoples imaginations through books, movies, and even hit television shows. What is really going on with these bat-like beings that sleep in coffins and subsist on human blood? This book delves into the mystery, legends, and origins of these bizarre creatures. Your readers can decide for themselves about the existence of vampires and whether they should stock up on garlic and wooden stakes.
Author: Christopher C. Gillis Publisher: Texas A&M University Press ISBN: 1623493358 Category : Business & Economics Languages : en Pages : 298
Book Description
The Aermotor Windmill Company, which commenced operations in Chicago in 1888, is the nation’s sole remaining full-time manufacturer of water-pumping machines. The company’s imprint on rural America, particularly across the West, is still visible today in the tens of thousands of its windmills that bring water to the earth’s surface. Still Turning is the first book to explore the rise of the American windmill through the experience of this important company. Aermotor founder La Verne Noyes and engineer Thomas Perry developed and perfected the all-metal wind pump in the 1880s. Within a decade, the “mathematical windmill” began to dominate the market. Aermotor continued to expand and innovate. The ruggedness and simplicity of the American mechanical windmill has allowed it to outlast many newer water-pumping technologies over the years with minimal maintenance and oversight. Christopher C. Gillis traces this story and more, from the early days of the company to Aermotor’s present-day relevance as it continues to produce its iconic windmills. Still Turning is a significant contribution not only to the history of wind power but also to the history of American enterprise.
Author: Justine Fontes Publisher: The Rosen Publishing Group ISBN: 1607546078 Category : Juvenile Fiction Languages : en Pages : 50
Book Description
Einstein, Frank, Clarita, and Tracy, four smart kids and great friends, meet at the Windmill Bakery to use their Virtual Visors to explore stories of vampires and try to discover the truth behind them.
Author: Ted Prior Publisher: Simon and Schuster ISBN: 1761108638 Category : Juvenile Fiction Languages : en Pages : 20
Book Description
Once the top of a Burrawang tree fell to the ground and became ... Grug! This classic Aussie hero is back from the bush to enchant a new generation of youngsters! Grug teaches the basic building blocks of learning, the alphabet and numbers, in a fabulous Australian setting.
Author: Justine Fontes Publisher: The Rosen Publishing Group, Inc ISBN: 160754864X Category : Juvenile Fiction Languages : en Pages : 50
Book Description
A tremendous civilization, that may or may not have actually existed, may lurk in ruins beneath the waters between Spain, North Africa, and Central Americaor elsewhere by various accounts. New understandings of plate tectonics and studies have recently revived the long-enduring curiosity of the lost city of Atlantis. Readers will get to decide for themselves whether the discovery of a real Atlantis awaits humankind.
Author: Justine Fontes Publisher: The Rosen Publishing Group, Inc ISBN: 1607548712 Category : Juvenile Fiction Languages : en Pages : 50
Book Description
Readers are in for a riveting ride as they follow the irresistible narrative and details about unidentified flying objects and alien encounters. Is there life in outer space and have they made contact already, or are we the victims of our own incredible imagination and hoaxes? Each graphic panel invites wondrous consideration and curiosities, allowing readers of all abilities to enjoy and learn.
Author: Richard Leslie Hills
Author: Richard Leslie Hills
Author: Stephanie Gertler
Author: William Kamkwamba
Author: William Kamkwamba
Author: Justine Fontes
Author: Christopher C. Gillis
Author: Justine Fontes
Author: Ted Prior
Author: Justine Fontes
Author: Justine Fontes