Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 362
Book Description
Mountain View IV Wind Energy Project
Author: Wind Energy
Author: David E. NewtonPublisher: Bloomsbury Publishing USA
ISBN:
Category : Science
Languages : en
Pages : 170
Book Description
While covering the fascinating history of wind power as a whole, this timely handbook focuses on current technological developments and the promise—and pitfalls—of wind energy as part of the world's energy future. The use of wind power for the generation of electricity holds vast potential for solving the world's energy problems, but numerous technical and social issues must be addressed before that potential can be realized. This handbook will both educate students about current issues related to wind energy and introduce the ways in which mankind has harnessed the wind through the ages. The book covers topics as diverse as early windmills in Europe, the United States, China, and the Middle East; the development of wind farms for electricity generation; and political factors involved in the development of wind energy today. Conventional wind turbine mechanics are explained, as are the technical improvements that drive modern wind turbines and other wind systems. What makes the handbook unique is that it combines hard science with perspective pieces that address topics such as potential environmental damage that can result from modern wind technology, and how recent developments in wind turbine technology hold the promise for considerably reducing the cost of this alternate energy source, making it competitive with conventional fossil fuels. Readers will be engaged by extensive discussion of the economic, political, and ethical issues raised by the expanding use of wind energy in the United States and elsewhere, and they will be intrigued by a look at what wind power can mean to the planet's energy future.
The California State Water Project
Author: California. Dept. of Water ResourcesPublisher:
ISBN:
Category : Water resources development
Languages : en
Pages : 120
Book Description
Preserving the Desert
Author: Lary M. DilsaverPublisher:
ISBN: 9781938086465
Category : Desert conservation
Languages : en
Pages : 0
Book Description
National parks are different from other federal lands in the United States. Beginning in 1872 with the establishment of Yellowstone, they were largely set aside to preserve for future generations the most spectacular and inspirational features of the country, seeking the best representative examples of major ecosystems such as Yosemite, geologic forms such as the Grand Canyon, archaeological sites such as Mesa Verde, and scenes of human events such as Gettysburg. But one type of habitat--the desert--fell short of that goal in American eyes until travel writers and the Automobile Age began to change that perception. As the Park Service began to explore the better-known Mojave and Colorado deserts of southern California during the 1920s for a possible desert park, many agency leaders still carried the same negative image of arid lands shared by many Americans--that they are hostile and largely useless. But one wealthy woman--Minerva Hamilton Hoyt, from Pasadena--came forward, believing in the value of the desert, and convinced President Franklin D. Roosevelt to establish a national monument that would protect the unique and iconic Joshua trees and other desert flora and fauna. Thus was Joshua Tree National Monument officially established in 1936, with the area later expanded in 1994 when it became Joshua Tree National Park. Since 1936, the National Park Service and a growing cadre of environmentalists and recreationalists have fought to block ongoing proposals from miners, ranchers, private landowners, and real estate developers who historically have refused to accept the idea that any desert is suitable for anything other than their consumptive activities. To their dismay, Joshua Tree National Park, even with its often-conflicting land uses, is more popular today than ever, serving more than one million visitors per year who find the desert to be a place worthy of respect and preservation. Distributed for George Thompson Publishing
Mirror Symmetry
Author: Kentaro HoriPublisher: American Mathematical Soc.
ISBN: 0821829556
Category : Mathematics
Languages : en
Pages : 954
Book Description
This thorough and detailed exposition is the result of an intensive month-long course on mirror symmetry sponsored by the Clay Mathematics Institute. It develops mirror symmetry from both mathematical and physical perspectives with the aim of furthering interaction between the two fields. The material will be particularly useful for mathematicians and physicists who wish to advance their understanding across both disciplines. Mirror symmetry is a phenomenon arising in string theory in which two very different manifolds give rise to equivalent physics. Such a correspondence has significant mathematical consequences, the most familiar of which involves the enumeration of holomorphic curves inside complex manifolds by solving differential equations obtained from a ``mirror'' geometry. The inclusion of D-brane states in the equivalence has led to further conjectures involving calibrated submanifolds of the mirror pairs and new (conjectural) invariants of complex manifolds: the Gopakumar-Vafa invariants. This book gives a single, cohesive treatment of mirror symmetry. Parts 1 and 2 develop the necessary mathematical and physical background from ``scratch''. The treatment is focused, developing only the material most necessary for the task. In Parts 3 and 4 the physical and mathematical proofs of mirror symmetry are given. From the physics side, this means demonstrating that two different physical theories give isomorphic physics. Each physical theory can be described geometrically, and thus mirror symmetry gives rise to a ``pairing'' of geometries. The proof involves applying $R\leftrightarrow 1/R$ circle duality to the phases of the fields in the gauged linear sigma model. The mathematics proof develops Gromov-Witten theory in the algebraic setting, beginning with the moduli spaces of curves and maps, and uses localization techniques to show that certain hypergeometric functions encode the Gromov-Witten invariants in genus zero, as is predicted by mirror symmetry. Part 5 is devoted to advanced topi This one-of-a-kind book is suitable for graduate students and research mathematicians interested in mathematics and mathematical and theoretical physics.
Waste Not, Want Not
Author: Peter H. GleickPublisher:
ISBN: 9781893790094
Category : Industrial water supply
Languages : en
Pages : 165
Book Description
A Planner's Guide for Oak Woodlands
Author: CEQA Deskbook
Author: Ronald E. BassSub-Saharan Africa
Author: World BankPublisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 324
Book Description
3. Investing in people.
San Francisco Bay Plan
Author: Publisher:
ISBN:
Category : Coastal zone management
Languages : en
Pages : 41
Book Description