High Energy Density Rechargeable Batteries for Aerospace Power Requirements

Download High Energy Density Rechargeable Batteries for Aerospace Power Requirements PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 37 pages
Book Rating : 4.:/5 (227 download)

DOWNLOAD NOW!


Book Synopsis High Energy Density Rechargeable Batteries for Aerospace Power Requirements by : Albert H. Zimmerman

Download or read book High Energy Density Rechargeable Batteries for Aerospace Power Requirements written by Albert H. Zimmerman and published by . This book was released on 1987 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: In light of power requirements for search missions the rechargeable battery and fuel cell technologies that are expected to be available for these missions are identified, and areas of technology development that will be required for each energy storage system are indicated. The general conclusions are that the nickel cadmium and nickel hydrogen battery systems will be able to satisfy the space power needs through the early 1990s, after which a significantly higher energy density system will be required, particularly for geosynchronous and mid-altitude orbit missions. The sodium sulfur battery is the only system projected to meet the requirements of the most power intensive missions that are expected to operate in higher orbits by the mid-1990s. For low earth orbit missions the nickel hydrogen battery system is expected to provide the required power levels, except in situations where very high peak power levels are required. The hydrogen oxygen regenerative fuel cell is best suited to satisfying the high peak power needs in large power systems, but must undergo significant development to obtain the needed system life.

Rechargeable Lithium Batteries

Download Rechargeable Lithium Batteries PDF Online Free

Author :
Publisher : Elsevier
ISBN 13 : 1782420983
Total Pages : 413 pages
Book Rating : 4.7/5 (824 download)

DOWNLOAD NOW!


Book Synopsis Rechargeable Lithium Batteries by : Alejandro Franco

Download or read book Rechargeable Lithium Batteries written by Alejandro Franco and published by Elsevier. This book was released on 2015-04-07 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rechargeable Lithium Batteries: From Fundamentals to Application provides an overview of rechargeable lithium batteries, from fundamental materials, though characterization and modeling, to applications. The market share of lithium ion batteries is fast increasing due to their high energy density and low maintenance requirements. Lithium air batteries have the potential for even higher energy densities, a requirement for the development of electric vehicles, and other types of rechargeable lithium battery are also in development. After an introductory chapter providing an overview of the main scientific and technological challenges posed by rechargeable Li batteries, Part One of this book reviews materials and characterization of rechargeable lithium batteries. Part Two covers performance and applications, discussing essential aspects such as battery management, battery safety and emerging rechargeable lithium battery technologies as well as medical and aerospace applications. Expert overview of the main scientific and technological challenges posed by rechargeable lithium batteries Address the important topics of analysis, characterization, and modeling in rechargeable lithium batteries Key analysis of essential aspects such as battery management, battery safety, and emerging rechargeable lithium battery technologies

Scientific and Technical Aerospace Reports

Download Scientific and Technical Aerospace Reports PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 772 pages
Book Rating : 4.:/5 (31 download)

DOWNLOAD NOW!


Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Next Generation Batteries

Download Next Generation Batteries PDF Online Free

Author :
Publisher : Springer Nature
ISBN 13 : 9813366680
Total Pages : 580 pages
Book Rating : 4.8/5 (133 download)

DOWNLOAD NOW!


Book Synopsis Next Generation Batteries by : Kiyoshi Kanamura

Download or read book Next Generation Batteries written by Kiyoshi Kanamura and published by Springer Nature. This book was released on 2021-03-23 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the development of next-generation batteries is introduced. Included are reports of investigations to realize high energy density batteries: Li-air, Li-sulfur, and all solid-state and metal anode (Mg, Al, Zn) batteries. Sulfide and oxide solid electrolytes are also reviewed.A number of relevant aspects of all solid-state batteries with a carbon anode or Li-metal anode are discussed and described: The formation of the cathode; the interface between the cathode (anode) and electrolyte; the discharge and charge mechanisms of the Li-air battery; the electrolyte system for the Li-air battery; and cell construction. The Li-sulfur battery involves a critical problem, namely, the dissolution of intermediates of sulfur during the discharge process. Here, new electrolyte systems for the suppression of intermediate dissolution are discussed. Li-metal batteries with liquid electrolytes also present a significant problem: the dendrite formation of lithium. New separators and electrolytes are introduced to improve the safety and rechargeability of the Li-metal anode. Mg, Al, and Zn metal anodes have been also applied to rechargeable batteries, and in this book, new metal anode batteries are introduced as the generation-after-next batteries.This volume is a summary of ALCA-SPRING projects, which constitute the most extensive research for next-generation batteries in Japan. The work presented in this book is highly informative and useful not only for battery researchers but also for researchers in the fields of electric vehicles and energy storage.

Rechargeable Batteries

Download Rechargeable Batteries PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119661196
Total Pages : 496 pages
Book Rating : 4.1/5 (196 download)

DOWNLOAD NOW!


Book Synopsis Rechargeable Batteries by : Rajender Boddula

Download or read book Rechargeable Batteries written by Rajender Boddula and published by John Wiley & Sons. This book was released on 2020-05-27 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Battery technology is constantly changing, and the concepts and applications of these changes are rapidly becoming increasingly more important as more and more industries and individuals continue to make “greener” choices in their energy sources. As global dependence on fossil fuels slowly wanes, there is a heavier and heavier importance placed on cleaner power sources and methods for storing and transporting that power. Battery technology is a huge part of this global energy revolution. Rechargeable battery technologies have been a milestone for moving toward a fossil-fuel-free society. They include groundbreaking changes in energy storage, transportation, and electronics. Improvements in battery electrodes and electrolytes have been a remarkable development, and, in the last few years, rechargeable batteries have attracted significant interest from scientists as they are a boon for electric vehicles, laptops and computers, mobile phones, portable electronics, and grid-level electricity storage devices. Rechargeable Batteries: History, Progress, and Applicationsoutlines the history, development, future, and applications for rechargeable batteries for energy storage applications. It also provides an in-depth description of various energy storage materials and is an invaluable reference guide for electro­chemists, chemical engineers, students, faculty, and R&D professionals in energy storage science, material science, and renewable energy. This is a must-have for any engineer’s library who works with batteries and energy storage.

Towards High-energy Rechargeable Magnesium Batteries and Battery Analytics for Electric Aviation

Download Towards High-energy Rechargeable Magnesium Batteries and Battery Analytics for Electric Aviation PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)

DOWNLOAD NOW!


Book Synopsis Towards High-energy Rechargeable Magnesium Batteries and Battery Analytics for Electric Aviation by : Massé Robert Carl

Download or read book Towards High-energy Rechargeable Magnesium Batteries and Battery Analytics for Electric Aviation written by Massé Robert Carl and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its commercialization in 1991, the rechargeable Li-ion battery has revolutionized how we live, work, and communicate. Further, rapidly declining costs have enabled the ongoing electrification of heavy industry, from automotive to power utilities and even aviation. Despite these important advances, reaching the targets required to minimize the effects of climate change requires improvements to battery technology across all levels of research and development – from basic materials chemistry to optimizations in manufacturing and operations in the field. This work represents a cross-cutting effort that spans the breadth of this range. In the experimental portion, the fundamental electrochemistry of magnesium was studied in the context of developing new positive and negative electrode materials for magnesium batteries. In particular, we show how considering the system as two interfaces (cathode-electrolyte and anode-electrolyte) rather than three components (cathode, anode, and electrolyte) helps explain some of the nuances of magnesium compared to lithium electrochemistry. In the second part of this work, we address applied problems in the growing field of battery data science and analytics. We develop software tools and models for industry-relevant problems in basic battery data management, cell lifetime forecasting and validation, and specific applications in electric aviation. Magnesium batteries represent a compelling candidate for the next generation of battery chemistries. It offers the prospect of safer operation at lower costs to manufacture and ~60% greater energy density compared to Li-ion batteries. However, many problems at the anode-electrolyte and cathode-electrolyte interfaces need to be resolved. Many electrolytes passivate magnesium metal and are oxidized at the cathode, and the nature of the kinetics (both reaction and diffusion) is unclear. In the two main prongs of this section of this work we propose 1) a coating that provides kinetic stability to the anode, and 2) an electrochemical protocol for studying magnesium cathode materials with greater clarity and reliability. Together we believe these approaches may be married to each other to develop a robust, high-energy magnesium battery based on a magnesium metal anode and a metal oxide cathode. We also explore battery data science as it applies to the new electric aviation industry. There are three main contributions. First, we report a user-friendly software environment for battery data science. It is designed to streamline data management, data cleaning, and data analysis to help bridge the gap between the domain expertise of most battery scientists and the tools needed as the field becomes increasingly data intensive. Second, we use a neural network model to extend state-of-the-art cell cycle life predictions to include a wider range of datasets and testing conditions, such as C-rate, cell chemistry, and temperature. Third, we train an outlier detection algorithm to rapidly identify weak cell blocks in an electric aircraft battery pack. This is significant in that identifying weak cells helps determine the remaining useful life in a battery system, which is of utmost importance for flight operators. Each of these constitute pieces of an effort that is oriented toward developing standard operating procedures for battery safety, performance, and maintenance for electric aviation.

Next-Generation Batteries and Fuel Cells for Commercial, Military, and Space Applications

Download Next-Generation Batteries and Fuel Cells for Commercial, Military, and Space Applications PDF Online Free

Author :
Publisher : CRC Press
ISBN 13 : 1466566558
Total Pages : 419 pages
Book Rating : 4.4/5 (665 download)

DOWNLOAD NOW!


Book Synopsis Next-Generation Batteries and Fuel Cells for Commercial, Military, and Space Applications by : A.R. Jha

Download or read book Next-Generation Batteries and Fuel Cells for Commercial, Military, and Space Applications written by A.R. Jha and published by CRC Press. This book was released on 2016-04-19 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distilling complex theoretical physical concepts into an understandable technical framework, Next-Generation Batteries and Fuel Cells for Commercial, Military, and Space Applications describes primary and secondary (rechargeable) batteries for various commercial, military, spacecraft, and satellite applications for covert communications, surveillan

Design and Analysis of Large Lithium-Ion Battery Systems

Download Design and Analysis of Large Lithium-Ion Battery Systems PDF Online Free

Author :
Publisher : Artech House
ISBN 13 : 1608077144
Total Pages : 241 pages
Book Rating : 4.6/5 (8 download)

DOWNLOAD NOW!


Book Synopsis Design and Analysis of Large Lithium-Ion Battery Systems by : Shriram Santhanagopalan

Download or read book Design and Analysis of Large Lithium-Ion Battery Systems written by Shriram Santhanagopalan and published by Artech House. This book was released on 2014-12-01 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new resource provides you with an introduction to battery design and test considerations for large-scale automotive, aerospace, and grid applications. It details the logistics of designing a professional, large, Lithium-ion battery pack, primarily for the automotive industry, but also for non-automotive applications. Topics such as thermal management for such high-energy and high-power units are covered extensively, including detailed design examples. Every aspect of battery design and analysis is presented from a hands-on perspective. The authors work extensively with engineers in the field and this book is a direct response to frequently-received queries. With the authors’ unique expertise in areas such as battery thermal evaluation and design, physics-based modeling, and life and reliability assessment and prediction, this book is sure to provide you with essential, practical information on understanding, designing, and building large format Lithium-ion battery management systems.

Lithium

Download Lithium PDF Online Free

Author :
Publisher : SolveForce
ISBN 13 :
Total Pages : 716 pages
Book Rating : 4./5 ( download)

DOWNLOAD NOW!


Book Synopsis Lithium by : Ron Legarski

Download or read book Lithium written by Ron Legarski and published by SolveForce. This book was released on 2024-09-01 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lithium: From Discovery to Modern Energy Applications is an essential guide to understanding one of the most critical elements driving today’s technological and energy revolutions. Co-authored by experts Ronald Legarski, Yash Patel, and Zoltan Csernus, this comprehensive book delves into lithium’s journey from its discovery to its widespread use in electric vehicles, renewable energy storage, and consumer electronics. The book explores lithium's unique properties, the evolution of lithium-ion battery technology, and its vital role in shaping the future of clean energy. With insights into lithium mining and production, environmental and geopolitical challenges, and innovations in energy storage, this work is a definitive resource for anyone interested in the future of energy and technology. Ronald Legarski, President & CEO of SolveForce, brings decades of experience in telecommunications and energy infrastructure, highlighting how lithium powers modern connectivity and smart grid technologies. Yash Patel, nuclear engineer and founder of NanoGate Technologies, provides his expertise in advanced technologies, including nuclear energy and biopharma, offering insights into lithium's broader industrial applications. Zoltan Csernus, master electrician and owner of CZ Electric, contributes his four decades of experience in electrical engineering, focusing on lithium’s role in power quality and energy storage solutions. Whether you are a scientist, engineer, industry professional, or simply curious about the future of clean energy, Lithium: From Discovery to Modern Energy Applications provides an accessible and detailed look at how lithium is transforming industries and enabling a sustainable future.

Green Aviation

Download Green Aviation PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1118866355
Total Pages : 528 pages
Book Rating : 4.1/5 (188 download)

DOWNLOAD NOW!


Book Synopsis Green Aviation by : Ramesh Agarwal

Download or read book Green Aviation written by Ramesh Agarwal and published by John Wiley & Sons. This book was released on 2016-10-17 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Green Aviation is the first authoritative overview of both engineering and operational measures to mitigate the environmental impact of aviation. It addresses the current status of measures to reduce the environmental impact of air travel. The chapters cover such items as: Engineering and technology-related subjects (aerodynamics, engines, fuels, structures, etc.), Operations (air traffic management and infrastructure) Policy and regulatory aspects regarding atmospheric and noise pollution. With contributions from leading experts, this volume is intended to be a valuable addition, and useful resource, for aerospace manufacturers and suppliers, governmental and industrial aerospace research establishments, airline and aviation industries, university engineering and science departments, and industry analysts, consultants, and researchers.

Aircraft Design

Download Aircraft Design PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1394218230
Total Pages : 869 pages
Book Rating : 4.3/5 (942 download)

DOWNLOAD NOW!


Book Synopsis Aircraft Design by : Mohammad H. Sadraey

Download or read book Aircraft Design written by Mohammad H. Sadraey and published by John Wiley & Sons. This book was released on 2024-11-25 with total page 869 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn the aircraft design process from a systems-engineering perspective, designed for both aspiring and practicing aerospace engineers Aircraft design incorporates a range of technological areas, including aerodynamics, flight dynamics, propulsion, and structure. Aircraft engineering design therefore requires techniques from systems engineering to integrate the requirements from these disparate areas into a coherent whole. There has never been a greater need for successful aerospace engineers to have a grasp of systems engineering and its applications in the field. Aircraft Design: A Systems Engineering Approach meets this need with a volume which takes the reader from conceptual design to detail design. Offering a systems engineering approach that weighs the needs of different aircraft components holistically, it provides readers with a practical look into the process of aircraft design. Now fully updated to reflect the latest industry developments, it promises to continue as an indispensable tool for modern students in the field. Readers of the second edition of Aircraft Design will also find: Brand new material on structural design, spoiler design, winglets, aircraft modification and modernization, and more Detailed discussion of emerging topics including all-electric aircraft design, VTOL aircraft design, and many others Guidance on the latest FAA requirements with a design impact Aircraft Design is ideal for senior undergraduate and graduate students interested in aircraft design, advanced aircraft design, and air vehicle design. The book may also be of interest to mechanical, industrial, and systems engineers working in the aerospace sector.

The Electrification of Civil Aircraft and the Evolution of Energy Storage

Download The Electrification of Civil Aircraft and the Evolution of Energy Storage PDF Online Free

Author :
Publisher : SAE International
ISBN 13 : 0768084407
Total Pages : 86 pages
Book Rating : 4.7/5 (68 download)

DOWNLOAD NOW!


Book Synopsis The Electrification of Civil Aircraft and the Evolution of Energy Storage by : Michael Waller

Download or read book The Electrification of Civil Aircraft and the Evolution of Energy Storage written by Michael Waller and published by SAE International. This book was released on 2017-08-28 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Larger airframes drove the development of electrical systems, capable of quickly and reliably starting the new higher power engines. These soon gave rise to the need for engine-mounted electrical generators as the primary source of in-flight power for the electrical loads and onboard recharging of the aircraft battery system. Of all the backup power sources, batteries represent the most common means of storing energy for auxiliary or emergency power requirements. It is not unusual for a typical commercial airliner, such as a B-737 or A-320, to have dozens of batteries on board. Over time, multiple battery chemistries were put to the test and the industry is still working on the optimal option. The lithium-ion technology has been gaining acceptance, with some important aspects to be considered: the application type, basic safety requirements and the presence or absence of humans on the vehicle. The Electrification of Civil Aircraft and the Evolution of Energy Storage, edited by Michael Waller, presents 10 seminal SAE technical papers which address multiple aspects of specific design, cell configuration and mitigation strategies in the case of battery failure. Additionally, with all the changes resulting from monitoring, control, and performance/safety test criteria, battery manufacturers have found themselves becoming systems integrators, having to quickly acquire knowledge of electronics and system modeling. As new technologies become available, industry will attempt to take advantage of all potential benefits, in a process that can have a profound impact on the product offerings that emerge and in the way business is conducted. The Electrification of Civil Aircraft and the Evolution of Energy Storage presents a solid perspective on how civil aviation has matured in its quest to develop lighter, more efficient and less polluting aircraft, and also more electric.

The Dictionary of Civil Aviation

Download The Dictionary of Civil Aviation PDF Online Free

Author :
Publisher : Entropol
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4./5 ( download)

DOWNLOAD NOW!


Book Synopsis The Dictionary of Civil Aviation by : Umut Ataman

Download or read book The Dictionary of Civil Aviation written by Umut Ataman and published by Entropol. This book was released on 2023-11-02 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the realm of civil aviation, the sky is hardly the limit. It’s the starting line. Each day, countless professionals and enthusiasts alike engage with this dynamic sector, propelling humanity literally into new horizons. However, as we soar into these vast expanses, the necessity for a robust understanding and a shared language becomes not just beneficial, but vital. It's here that The Dictionary of Civil Aviation finds its wings, offering a solid ground of knowledge amidst the boundless skies of aviation exploration. With a reservoir of 4,681 meticulously curated entries, this dictionary stands as a testament to the colossal body of knowledge that civil aviation encompasses. It's an endeavor to foster a shared understanding, to bridge the knowledge gaps that might exist between a seasoned aviator and an aviation student, between air traffic controllers and airport managers, or between aviation policymakers and enthusiasts. The Dictionary of Civil Aviation is more than just a glossary; it’s a journey. A journey through the technicalities that ensure safety in the skies, the regulations that govern our airways, the acronyms that punctuate aviation communication, and the innovations that continue to drive this sector forward. Each term encapsulated in this dictionary is a node in the vast network that is civil aviation, offering readers a structured pathway through the complex, yet exhilarating world of flight. The objective is clear: to foster a culture of continuous learning and shared understanding within the civil aviation community. By doing so, we not only enhance the safety and efficiency of civil aviation but also honor the spirit of exploration and innovation that has always been its hallmark. As you flip through the pages of The Dictionary of Civil Aviation, you are not just encountering definitions; you are engaging with the living, evolving entity that is civil aviation. Each term is a window into a broader narrative, a narrative that you, as a reader and as a member of the civil aviation community, contribute to. We invite you to embark on this educational expedition, to delve into the nuances of civil aviation, and to emerge with a richer understanding and appreciation of the sector that makes global connectivity possible. Through this dictionary, may your curiosity take flight, and may your understanding of civil aviation soar to new heights.

A Textbook of Engineering Physics

Download A Textbook of Engineering Physics PDF Online Free

Author :
Publisher : S. Chand Publishing
ISBN 13 : 8121908175
Total Pages : 1204 pages
Book Rating : 4.1/5 (219 download)

DOWNLOAD NOW!


Book Synopsis A Textbook of Engineering Physics by : M N Avadhanulu

Download or read book A Textbook of Engineering Physics written by M N Avadhanulu and published by S. Chand Publishing. This book was released on 2008 with total page 1204 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Txtbook of Engineering Physics is written with two distinct objectives:to provied a single source of information for engineering undergraduates of different specializations and provied them a solid base in physics.Successivs editions of the book incorporated topic as required by students pursuing their studies in various universities.In this new edition the contents are fine-tuned,modeinized and updated at various stages.

Energy

Download Energy PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 418 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!


Book Synopsis Energy by :

Download or read book Energy written by and published by . This book was released on 1982 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sustainable Aviation Technology and Operations

Download Sustainable Aviation Technology and Operations PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1118932587
Total Pages : 549 pages
Book Rating : 4.1/5 (189 download)

DOWNLOAD NOW!


Book Synopsis Sustainable Aviation Technology and Operations by : Roberto Sabatini

Download or read book Sustainable Aviation Technology and Operations written by Roberto Sabatini and published by John Wiley & Sons. This book was released on 2023-10-16 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable Aviation Technology and Operations Comprehensively covers research and development initiatives to enhance the environmental sustainability of the??aviation sector Sustainable Aviation Technology and Operations provides a comprehensive and timely outlook of recent research advances in aeronautics and air transport, with emphasis on both long-term sustainable development goals and current achievements. This book discusses some of the most promising advances in aircraft technologies, air traffic management and systems engineering methodologies for sustainable aviation. The topics covered include: propulsion, aerodynamics, avionics, structures, materials, airspace management, biofuels and sustainable lifecycle management. The physical processes associated with various aircraft emissions — including air pollutants, noise and contrails — are presented to support the development of computational models for aircraft design, flight path optimization and environmental impact assessment. Relevant advances in systems engineering and lifecycle management processes are also covered, bridging some of the existing gaps between academic research and industry best practices. A collection of research case studies complements the book, highlighting opportunities for a timely uptake of the most promising technologies, towards a more efficient and environmentally sustainable aviation future. Key features: Contains important research and industry relevant contributions from world-class experts. Addresses recent advances in aviation sustainability including multidisciplinary design approaches and multi-objective operational optimisation methods. Includes a number of research case studies, addressing propulsion, aerostructures, alternative aviation fuels, avionics, air traffic management, and sustainable lifecycle management solutions. Sustainable Aviation Technology and Operations is an excellent book for aerospace engineers, aviation scientists, researchers and graduate students involved in the field.

Government Reports Announcements & Index

Download Government Reports Announcements & Index PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 1642 pages
Book Rating : 4.:/5 (319 download)

DOWNLOAD NOW!


Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1992 with total page 1642 pages. Available in PDF, EPUB and Kindle. Book excerpt: