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Three Body Dynamics and Its Applications to Exoplanets
by Zdzislaw Musielak Billy QuarlesThis brief book provides an overview of the gravitational orbital evolution of few-body systems, in particular those consisting of three bodies. The authors present the historical context that begins with the origin of the problem as defined by Newton, which was followed up by Euler, Lagrange, Laplace, and many others. Additionally, they consider the modern works from the 20th and 21st centuries that describe the development of powerful analytical methods by Poincare and others. The development of numerical tools, including modern symplectic methods, are presented as they pertain to the identification of short-term chaos and long term integrations of the orbits of many astronomical architectures such as stellar triples, planets in binaries, and single stars that host multiple exoplanets. The book includes some of the latest discoveries from the Kepler and now K2 missions, as well as applications to exoplanets discovered via the radial velocity method. Specifically, the authors give a unique perspective in relation to the discovery of planets in binary star systems and the current search for extrasolar moons.
The Three-Body Problem and the Equations of Dynamics
by Henri Poincaré Bruce D PoppHere is an accurate and readable translation of a seminal article by Henri Poincaré that is a classic in the study of dynamical systems popularly called chaos theory. In an effort to understand the stability of orbits in the solar system, Poincaré applied a Hamiltonian formulation to the equations of planetary motion and studied these differential equations in the limited case of three bodies to arrive at properties of the equations’ solutions, such as orbital resonances and horseshoe orbits. Poincaré wrote for professional mathematicians and astronomers interested in celestial mechanics and differential equations. Contemporary historians of math or science and researchers in dynamical systems and planetary motion with an interest in the origin or history of their field will find his work fascinating.
The Three-body Problem from Pythagoras to Hawking
by Mauri Valtonen Joanna Anosova Konstantin Kholshevnikov Aleksandr Mylläri Victor Orlov Kiyotaka TanikawaThis book, written for ageneral readership, reviews and explains the three-body problem in historicalcontext reaching to latest developments in computational physics and gravitationtheory. The three-body problem is one of the oldest problems in science and itis most relevant even in today's physics and astronomy. The long history of theproblem from Pythagoras to Hawking parallels the evolution of ideas about ourphysical universe, with a particular emphasis on understanding gravity and howit operates between astronomical bodies. The oldest astronomical three-body problemis the question how and when the moon and the sun line up with the earth to produceeclipses. Once the universal gravitation was discovered by Newton, it became immediatelya problem to understand why these three-bodies form a stable system, in spiteof the pull exerted from one to the other. In fact, it was a big questionwhether this system is stable at all in the long run. Leading mathematicians attackedthis problem over more than two centuries without arriving at a definiteanswer. The introduction of computers in the last half-a-century hasrevolutionized the study; now many answers have been found while new questions aboutthe three-body problem have sprung up. One of the most recent developments hasbeen in the treatment of the problem in Einstein's General Relativity, the new theoryof gravitation which is an improvement on Newton's theory. Now it is possible tosolve the problem for three black holes and to test one of the most fundamentaltheorems of black hole physics, the no-hair theorem, due to Hawking and hisco-workers.
Three Centuries and the Island
by Andrew Hill ClarkThis study is one of the first in the field of historical geography to be published in Canada. Written after exhaustive research, it uses a particular approach to the study of historical agricultural geography which concentrates on the use of basic distributional evidence for the description and interpretation of the changing character of any region through any period of time. By the analysis of over 1200 maps, some of which form part of the text of the book, Professor Clark studies agriculture as the dominant economic activity of Prince Edward Island and traces with remarkable clarity through the changing patterns of land culture throughout the province.The book begins with a description of the natural geography of the Island which, despite its small size, shows surprising variety. It goes on to prove the necessity for careful consideration of the background of habit and prejudice of groups of different origin when studying the changing geographies of land use.The settlement of the Island is traced from the time it was used as a summer campground by the Micmac Indians. Details of the arrival of the first Acadians, the transfer to British rule, and the subsequent influx of Scottish, Irish, Loyalist, and English stock are given together with evidence of the effect their coming had on the agriculture of the region. One hundred and fifty-five maps and sixteen tables to illustrate the distribution of population by area and origin, changes in kind and distribution of crops, census of livestock, etc., from the early eighteenth century to the present day, and from the days when the potato was unknown as a crop through the fur-farming era.The author presents this study as part of his life-work, a programme of research on the settlement overseas in the seventeenth, eighteenth, and nineteenth centuries of the people from the British Isles. He is descended from Prince Edward Island settlers and writes of the province from a background of personal knowledge of, and affection for, the land of his forbears.
Three Decades of Progress in Control Sciences
by Ulf Jonsson Xiaoming Hu Bijoy Ghosh Bo WahlbergIn this edited collection we commemorate the 60th birthday of Prof. Christopher Byrnes and the retirement of Prof. Anders Lindquist from the Chair of Optimization and Systems Theory at KTH. These papers were presented in part at a 2009 workshop in KTH, Stockholm, honoring the lifetime contributions of Professors Byrnes and Lindquist in various fields of applied mathematics.
Three Dimensional Human Organotypic Models for Biomedical Research (Current Topics in Microbiology and Immunology #430)
by Fabio Bagnoli Rino RappuoliThis edited volume discusses the application of very diverse human organotypic models in major areas of biomedical research. The authors lay a main focus on infectious diseases, cancer, allergies, as well as drug/vaccine discovery and toxicology studies. Representing a valid alternative to laboratory animals, these models are relevant for most areas of translational research. As the contemporary research shows, many human tissues can today be cultivated in vitro and used for several research objectives. This book provides an unprecedented overview of recent developments in an exciting field of research methodology. It is a reference guide for scientists in both academia and industry. Readers can update their knowledge and get hands-on recommendations on how to set up an organotypic model in their lab. Chapters 'Progress on Reconstructed Human Skin Models for Allergy Research and Identifying Contact Sensitizers' and 'Human Organotypic Models for Anti-infective Research' of this book are available open access under a CC BY 4.0 license at link.springer.com.
Three-Dimensional Nanoarchitectures
by Weilie Zhou Zhong Lin WangDevices built from three-dimensional nanoarchitectures offer a number of advantages over those based on thin-film technology, such as larger surface area to enhance the sensitivity of sensors, to collect more sunlight to improve the efficiency of solar cells, and to supply higher density emitters for increased resolution in flat panel displays. Three-dimensional nanoscale assembly has already been used to generate many prototypes of devices and sensors, including piezoelectric nanogenerators based on ZnO nanowire arrays, photovoltaic devices based on silicon nanowire array p-n junctions, and highly sensitive gas sensors based on metal oxide nanowire arrays among others. Three-Dimensional Nanoarchitectures: Designing Next-Generation Devices describes state-of-the-art synthesis, integration, and design strategies used to create three-dimensional nanoarchitectures for functional nanodevice applications. With a focus on synthesis and fabrication methods for three-dimensional nanostructure assembly and construction, coverage includes resonators, nanophotonics, sensors, supercapacitors, solar cells, and more. This book is an essential reference for a broad audience of researchers in materials science, chemistry, physics, and electrical engineering who want the latest information on synthesis routes and assembly methods. Schematics of device integration and mechanisms as well as plots of measurement data are included.
Three Dimensional QSAR: Applications in Pharmacology and Toxicology (QSAR in Environmental and Health Sciences)
by Jean Pierre Doucet Annick PanayeAs a result of new statistical and mathematical approaches, improved visualization tools, and recognition by international regulatory groups, quantitative structure-activity relationships (QSARs) now play important roles in pharmacology for the design of new drugs as well as in toxicology and ecotoxicology for hazard identification and risk assessm
Three-dimensional Separated Flow Topology: Critical Points, Separation Lines and Vortical Structures
by Jean DéleryThis book develops concepts and a methodology for a rational description of the organization of three-dimensional flows considering, in particular, the case where the flow is the place of separations. The descriptive analysis based on the critical point theory of Poincaré develops conventional but rather unfamiliar considerations from aerodynamicists, who face the understanding of complex flows including multiple separation lines and vortices. These problems concern industrial sectors where aerodynamics plays a key role, such as aerospace, ground vehicles, buildings, etc. Contents 1. Skin Friction Lines Pattern and Critical Points. 2. Separation Streamsurfaces and Vortex Structures. 3. Separated Flow on a Body. 4. Vortex Wake of Wings and Slender Bodies. 5. Separation Induced by an Obstacle or a Blunt Body. 6. Reconsideration of the Two-Dimensional Separation. 7. Concluding Remarks. About the Authors Jean Délery is a Supaero (French National Higher School of Aeronautics and Space) engineer who has worked at Onera (French national aerospace research center) since 1964. He has participated in several major French and European aerospace programs, is the author of many scientific publications, and has occupied various teaching positions particularly at Supaero, the University of Versailles-Saint-Quentin, Ecole polytechnique in France and “La Sapienza” University in Rome, Italy. He is currently emeritus adviser at Onera.
Three Dimensional Solar Cells Based on Optical Confinement Geometries
by Yuan LiThree dimensional (3D) optical geometries are becoming more common in the literature and lexicon of solar cells. Three Dimensional Solar Cells Based on Optical Confinement Geometries describes and reveals the basic operational nuances of 3D photovoltaics using three standard tools: Equivalent Circuit Models, Ray Tracing Optics in the Cavity, and Absorber Spectral Response. These tools aide in understanding experimental absorption profile and device parameters including Jsc, Voc, Fill Factor, and EQE. These methods also apply to individual optical confinement geometry device, integrated optical confinement geometry device, and hybrid optical confinement geometry device. Additionally, this book discusses the importance of these methods in achieving the goal of high efficiency solar cells and suggests a possible application in large-scale photovoltaics business, like solar farms.
Three Dimensional Space-Time Analysis Theory of Geotechnical Seismic Engineering
by Changwei Yang Guotao Yang Jianjing Zhang Hongsheng MaWritten by respected experts, this book presents essential findings on the Wenchuan earthquake. It establishes a series of time–frequency analysis methods, and subsequently applies them to the layered site, slope, and earth-retaining wall. Further, it examines various cases and their solutions, and shares the results of numerous shaking-table tests and numerical simulations. As such, it is a valuable resource for researchers and engineers in the fields of geotechnical engineering and anti-seismic engineering.
The Three Ethologies: A Positive Vision for Rebuilding Human-Animal Relationships (Animal Lives)
by Matthew CalarcoA transformative vision for human-animal relations on personal, social, and environmental levels. The Three Ethologies offers a fresh, affirmative vision for rebuilding human-animal relations. Venturing beyond the usual scholarly and activist emphasis on restricting harm, Matthew Calarco develops a new philosophy for understanding animal behavior—a practice known as ethology—through three distinct but interrelated lenses: mental ethology, which rebuilds individual subjectivity; social ethology, which rethinks our communal relations; and environmental ethology, which reconfigures our relationship to the land we co-inhabit with our animal kin. Drawing on developments in philosophy, (eco)feminist theory, critical geography, Indigenous studies, and the environmental humanities, Calarco casts an inspiring vision of how ethological living can help us to reimagine our ideas about goodness, truth, and beauty.
The Three Failures of Creationism: Logic, Rhetoric, and Science
by Walter M. FitchWalter M. Fitch, a pioneer in the study of molecular evolution, has written this cogent overview of why creationism fails with respect to all the fundamentals of scientific inquiry. He explains the basics of logic and rhetoric at the heart of scientific thinking, shows what a logical syllogism is, and tells how one can detect that an argument is logically fallacious, and therefore invalid, or even duplicitous. Fitch takes his readers through the arguments used by creationists to question the science of evolution. He clearly delineates the fallacies in logic that characterize creationist thinking, and explores the basic statistics that creationists tend to ignore, including elementary genetics, the age of the Earth, and fossil dating. His book gives readers the tools they need for detecting and disassembling the ideas most frequently repeated by creationists.
Three Generations, No Imbeciles: Eugenics, the Supreme Court, and Buck v. Bell
by Paul A. LombardoWinner, 2009 Georgia Author of the Year Award for Creative Nonfiction HistoryHonorable Mention, Nonfiction. Library of Virginia Literary Awards"Three generations of imbeciles are enough." Few lines from Supreme Court opinions are as memorable as this declaration by Justice Oliver Wendell Holmes Jr. in the landmark 1927 case Buck v. Bell. The ruling allowed states to forcibly sterilize residents in order to prevent "feebleminded and socially inadequate" people from having children. It is the only time the Supreme Court endorsed surgery as a tool of government policy. Paul Lombardo’s startling narrative exposes the Buck case’s fraudulent roots.In 1924 Carrie Buck—involuntarily institutionalized by the State of Virginia after she was raped and impregnated—challenged the state’s plan to sterilize her. Having already judged her mother and daughter mentally deficient, Virginia wanted to make Buck the first person sterilized under a new law designed to prevent hereditarily "defective" people from reproducing. Lombardo’s more than twenty-five years of research and his own interview with Buck before she died demonstrate conclusively that she was destined to lose the case before it had even begun. Neither Carrie Buck nor her mother and daughter were the "imbeciles" condemned in the Holmes opinion. Her lawyer—a founder of the institution where she was held—never challenged Virginia’s arguments and called no witnesses on Buck’s behalf. And judges who heard her case, from state courts up to the U.S. Supreme Court, sympathized with the eugenics movement. Virginia had Carrie Buck sterilized shortly after the 1927 decision.Though Buck set the stage for more than sixty thousand involuntary sterilizations in the United States and was cited at the Nuremberg trials in defense of Nazi sterilization experiments, it has never been overturned. Three Generations, No Imbeciles tracks the notorious case through its history, revealing that it remains a potent symbol of government control of reproduction and a troubling precedent for the human genome era.
Three Generations, No Imbeciles: Eugenics, the Supreme Court, and Buck v. Bell
by Paul A. LombardoThis updated edition includes a new afterword that identifies the role the Buck story plays in the Supreme Court's review of emerging state laws that seek to limit access to abortion."Three generations of imbeciles are enough." Few lines from U.S. Supreme Court opinions are as memorable as this declaration by Justice Oliver Wendell Holmes Jr. in the landmark 1927 case Buck v. Bell. The ruling allowed states to forcibly sterilize residents in order to prevent "feebleminded and socially inadequate" people from having children. It is the only time the Supreme Court endorsed surgery as a tool of government policy. Though Buck set the stage for more than sixty thousand involuntary sterilizations in the United States and was cited at the Nuremberg trials in defense of Nazi sterilization experiments, it has never been overturned. It has been more than a decade since Paul A. Lombardo's classic Three Generations, No Imbeciles first exposed the Buck case's fraudulent roots. During that time, several of the remaining twentieth-century eugenic sterilization statutes have finally been repealed, and reparations to sterilization survivors have been paid in two states. Discussion of the Buck case has once again engendered controversy in the courts. The Wisconsin Supreme Court invoked Buck most recently in a debate over the power of the state to enact restrictions on citizens and businesses during the COVID-19 crisis, and the US Supreme Court cited Three Generations, No Imbeciles in arguments over the newest state laws seeking to limit access to abortion. This updated edition collects and analyzes information related to events and trends discussed in the earlier volume and includes a completely new afterword, "Looking Back at Buck," that explains how the case remains a key feature of public discourse about disability, government power, and reproductive rights. It also presents restored copies of the letters of Carrie Buck and points readers to an online archive of legal documents, images, and other material relevant to the case. The book remains a key resource for law school faculties, legal and medical historians, and anyone with an interest in the history of reproduction in the United States."Startling."—Reason"Compelling and well-researched... Three Generations, No Imbeciles gives Carrie Buck's long-untold story the attention it deserves."—Harvard Law Review"Three Generations provides valuable, new, and timely revelations for students and professional scholars across many disciplines."—Disability Studies Quarterly"Meticulously detailed and researched history... this book is enjoyable, thought provoking, and troubling in equal measure. I highly recommend it."—Psychiatric Services
Three Generations, No Imbeciles: Eugenics, the Supreme Court, and Buck v. Bell
by Paul A. Lombardo"Three generations of imbeciles are enough." Few lines from Supreme Court opinions are as memorable as this declaration by Justice Oliver Wendell Holmes Jr. in the landmark 1927 case Buck v. Bell. The ruling allowed states to forcibly sterilize residents in order to prevent "feebleminded and socially inadequate" people from having children. It is the only time the Supreme Court endorsed surgery as a tool of government policy. Paul Lombardo's startling narrative exposes the Buck case's fraudulent roots. In 1924 Carrie Buck -- involuntarily institutionalized by the State of Virginia after she was raped and impregnated -- challenged the state's plan to sterilize her. Having already judged her mother and daughter mentally deficient, Virginia wanted to make Buck the first person sterilized under a new law designed to prevent hereditarily "defective" people from reproducing. Lombardo's more than twenty-five years of research and his own interview with Buck before she died demonstrate conclusively that she was destined to lose the case before it had even begun. Neither Carrie Buck nor her mother and daughter were the "imbeciles" condemned in the Holmes opinion. Her lawyer -- a founder of the institution where she was held -- never challenged Virginia's arguments and called no witnesses on Buck's behalf. And judges who heard her case, from state courts up to the U.S. Supreme Court, sympathized with the eugenics movement. Virginia had Carrie Buck sterilized shortly after the 1927 decision. Though Buck set the stage for more than sixty thousand involuntary sterilizations in the United States and was cited at the Nuremberg trials in defense of Nazi sterilization experiments, it has never been overturned. Three Generations, No Imbeciles tracks the notorious case through its history, revealing that it remains a potent symbol of government control of reproduction and a troubling precedent for the human genome era.
Three Great Tsunamis: Lisbon (1755), Sumatra-Andaman (2004) and Japan (2011)
by Harsh K. Gupta Vineet K. GahalautTsunamis are primarily caused by earthquakes. Under favourable geological conditions, when a large earthquake occurs below the sea bed and the resultant rupture causes a vertical displacement of the ocean bed, the entire column of water above it is displaced, causing a tsunami. In the ocean, tsunamis do not reach great heights but can travel at velocities of up to 1000 km/hour. As a tsunami reaches shallow sea depths, there is a decrease in its velocity and an increase in its height. Tsunamis are known to have reached heights of several tens of meters and inundate several kilometres inland from the shore. Tsunamis can also be caused by displacement of substantial amounts of water by landslides, volcanic eruptions, glacier calving and rarely by meteorite impacts and nuclear tests in the ocean. In this SpringerBrief, the causes of tsunamis, their intensity and magnitude scales, global distribution and a list of major tsunamis are provided. The three great tsunamis of 1755, 2004 and 2011are presented in detail. The 1755 tsunami caused by the Lisbon earthquake, now estimated to range from Mw 8.5 to 9.0, was the most damaging tsunami ever in the Atlantic ocean. It claimed an estimated 100,000 human lives and caused wide-spread damage. The 2004 Sumatra Andaman Mw 9.1 earthquake and the resultant tsunami were the deadliest ever to hit the globe, claiming over 230,000 human lives and causing wide-spread financial losses in several south and south-east Asian countries. The 2011 Mw 9.0 Tohoku-Oki earthquake and the resultant tsunami were a surprise to the seismologists in Japan and around the globe. The height of the tsunami far exceeded the estimated heights. It claimed about 20,000 human lives. The tsunami also caused nuclear accidents. This earthquake has given rise to a global debate on how to estimate the maximum size of an earthquake in a given region and the safety of nuclear power plants in coastal regions. This Brief also includes a description of key components of tsunami warning centres, progress in deploying tsunami watch and warning facilities globally, tsunami advisories and their communication, and the way forward.
Three Laws of Nature: A Little Book on Thermodynamics
by R. Stephen BerryA short and entertaining introduction to thermodynamics that uses real-world examples to explain accessibly an important but subtle scientific theory A romantic description of the second law of thermodynamics is that the universe becomes increasingly disordered. But what does that actually mean? Starting with an overview of the three laws of thermodynamics, MacArthur “genius grant" winner R. Stephen Berry explains in this short book the fundamentals of a fundamental science. Readers learn both the history of thermodynamics, which began with attempts to solve everyday engineering problems, and ongoing controversy and unsolved puzzles. The exposition, suitable for both students and armchair physicists, requires no previous knowledge of the subject and only the simplest mathematics, taught as needed. With this better understanding of one science, readers also gain an appreciation of the role of research in science, the provisional nature of scientific theory, and the ways scientific exploration can uncover fundamental truths. Thus, from a science of everyday experience, we learn about the nature of the universe.
Three Lectures on Complexity and Black Holes (SpringerBriefs in Physics)
by Leonard SusskindThese three lectures cover a certain aspect of complexity and black holes, namely the relation to the second law of thermodynamics. The first lecture describes the meaning of quantum complexity, the analogy between entropy and complexity, and the second law of complexity. Lecture two reviews the connection between the second law of complexity and the interior of black holes. Prof. L. Susskind discusses how firewalls are related to periods of non-increasing complexity which typically only occur after an exponentially long time. The final lecture is about the thermodynamics of complexity, and “uncomplexity” as a resource for doing computational work. The author explains the remarkable power of “one clean qubit,” in both computational terms and in space-time terms. This book is intended for graduate students and researchers who want to take the first steps towards the mysteries of black holes and their complexity.
Three Mile Island: The Meltdown Crisis and Nuclear Power in American Popular Culture (Critical Moments in American History)
by Grace HaldenThree Mile Island explains the far-reaching consequences of the partial meltdown of Pennsylvania’s Three Mile Island power plant on March 28, 1979. Though the disaster was ultimately contained, the fears it triggered had an immediate and lasting impact on public attitudes towards nuclear energy in the United States. In this volume, Grace Halden contextualizes the events at Three Mile Island and the ensuing media coverage, offering a gripping portrait of a nation coming to terms with technological advances that inspired both awe and terror. Including a selection of key primary documents, this book offers a fascinating resource for students of the history of science, technology, the environment, and Cold War culture.
The Three-Minute Outdoorsman: Wild Science from Magnetic Deer to Mumbling Carp
by Robert M. ZinkThere are days when, if we hunt or fish or watch birds, we just want to be alone with our thoughts. Other times, however, contemplating the great outdoors that contains so many unknowns, we may wish to learn about moaning moose . . . or mumbling carp . . . or magnetic deer. And this is where Robert M. Zink enters the scene. A writer who humorously bridges the gap between esoteric information and nature as we have come to know it, Zink distills the latest news from the world of science into three-minute bursts of irresistible lore for the layman. In these brief, engaging essays readers will discover, for instance, how deer use the earth&’s magnetic field for orientation; a long-gone tradition of hunting loons in North Carolina; how porcupine quills are advancing new ideas about delivering inoculations; and why deer antlers can model bone regeneration for amputees. How do predator–prey cycles get started? Should we worry about black bear attacks in the woods? Zink has the answers—often to questions we didn&’t think to ask but wish we had. This is the outdoors at its mysterious best, as the experience of nature and the findings of science combine to educate our sense of wonder and tickle our fancy—to say nothing of our highly unscientific funny bone.
The Three-Minute Outdoorsman Returns: From Mammoth on the Menu to the Benefits of Moose Drool
by Robert M. ZinkSpending time in nature can raise some serious questions. After contemplating your own mortality, you may start to wonder: Why don’t deer noses freeze in the winter? What does mammoth taste like? Do fish feel pain? These are important questions, and Robert M. Zink has the answers. Bringing together the common and the enigmatic, The Three-Minute Outdoorsman Returns includes over seventy three-minute essays in which Zink responds to the queries that have yet to cross your mind. Drawing on his zoological background, Zink condenses the latest scientific discoveries and delivers useful, entertaining information on the great outdoors. Can a sheep’s horns be too big? Was the Labrador duck a hybrid? Why did I miss that clay target? A large section on deer covers topics ranging from deer birth control backfiring, new information on Chronic Wasting Disease, supplemental feeding, and deer genetics. Other essays explore land, aquatic animals, and humanity’s relationship with nature, thus making this book of wild science an essential for any outdoors person.
The Three-Minute Philosopher: Inspiration for Modern Life
by Fabrice MidalFrench philosophy and meditation expert Fabrice Midal's The Three-Minute Philosopher includes forty brief essays for tapping into a deeper understanding of your existence, with experiences that will transform, enlighten, and invite you to see the world in a new way. Philosophy takes us by surprise. It challenges us, awakens us, and opens our minds. It does not tell us to be "wise" or to be a perfect being, but instead to nurture our own humanity. Philosophical thinking is the antithesis of the rampant dogmatism that dominates so much public discussion, of the vehemently expressed opinions of those who think they know everything and who insist you agree with them. Self-proclaimed experts tell us to listen to and obey their injunctions, but philosophers encourage us to think for ourselves. After all, philosophy addresses what makes us human and helps us navigate everyday life, from dealing with that annoying colleague at work, to the panic of realizing that your fridge is empty when guests arrive out of the blue.Fabrice Midal teaches the power of trusting in our own thoughts and strengthening our connection to humanity, as he guides us through the inspirational ideas of forty writers, artists, thinkers, and seers from Baudelaire to Nietzsche, Emily Dickinson to Toni Morrison, Pablo Picasso to James Baldwin, and of course, Socrates to Aristotle. Simple, smart, and approachable, Midal's three-minute essays ask us to step back, reflect, and meditate, and encourage us to think about the world a little differently.
Three-Phase Electrical Power
by Joseph E. Fleckenstein<p>Three-Phase Electrical Power addresses all aspects of three-phase power circuits. The book treats the transmission of electrical power from the common sources where it is generated to locations where it is consumed. At typical facilities where electrical power is used, the book covers the important topics of grounding, currents, power, demand, metering, circuit protection, motors, motor protection, power factor correction, tariffs, electrical drawings, and relays. Included in the text are the necessary methods of computing currents and power in all possible types of circuit applications as those that are balanced, unbalanced, leading, lagging, three-wire, and four-wire. <p>Focusing on electrical gear, programs, and issues related to the generation and use of three-phase electrical power, this contemporary educational guide: <p> <li>Uses simple, straightforward language to explain key concepts and their underlying theory <li>Introduces numerous examples, illustrations, and photographs to aid in comprehension <li>Employs phasor concepts throughout the text to aid in the analysis of three-phase circuits <li>Encourages applied learning by supplying practical problems at the end of each chapter <li>Provides extensive references and a glossary of symbols, acronyms, and equations</li> <p> <p>Three-Phase Electrical Power delivers a much-needed modern-day treatment of three-phase electrical power for electrical engineering students and practitioners alike.</p>
Three Roads To Quantum Gravity
by Lee SmolinThe Holy Grail of modern physics is a theory of the universe that unites two seemingly opposing pillars of modern science: Einstein's theory of general relativity, which deals with large-scale phenomena (planets, solar systems and galaxies), and quantum theory, which deals with the world of the very small (molecules, atoms, electrons). In Three Roads to Quantum Gravity, Lee Smolin provides the first concise and accessible overview of current attempts to reconcile these two theories in a final "theory of everything. " This is the closest anyone has ever come to devising a completely new theory of space, time and the universe to replace the Newtonian ideas that were the foundation of all science until the beginning of the twentieth century. Lee Smolin, who has spent his career at the forefront of these new discoveries, presents for the first time the main ideas behind the new developments that have brought a quantum theory of gravity in sight. He explains in simple terms what scientists are talking about when they say the world is made from exotic entities such as loops, strings, and black holes. As he does so, he tells the fascinating stories behind these discoveries: the rivalries, epiphanies, and intrigues he witnessed firsthand. Science Masters Series