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Spin-While-Burn: The New Approach for Tiny Medical Device Fabrication (SpringerBriefs in Applied Sciences and Technology)
by Mohd Shahir Kasim Muhammad Akmal Zakaria Saiful Bahri MohamedThis book explains the challenges and advancements in cutting precise cylindrical shapes on difficult materials through spark erosion. Titled "Spin while Burn," it addresses the drawbacks associated with this process, including unsatisfactory surface finish and limited productivity. Despite utilizing advanced computing and statistical optimization methods, achieving the ideal balance between material removal rate (MRR) and surface quality remains elusive. In response, the book introduces a hybrid ultrasonic-assisted approach in the wire electrical discharge turning (WEDT) process. By integrating a rotating workpiece with ultrasonic vibration, the authors evaluate its impact on MRR and surface finish. Through meticulous design experiments and statistical analysis, they explore various cutting parameters and machining paths. The book highlights the characterization of machined surfaces through elemental analysis and surface morphology evaluations. The results demonstrate the positiveeffects of integrating ultrasonic vibration into WEDT, even without optimized ultrasonic parameters. By reducing electrode wire debris and employing multi-objective parameter optimization using the genetic algorithm, significant improvements are achieved in MRR and surface roughness compared to conventional WEDT. "Spin while Burn" consists of five chapters, delving into the challenges, history, principles, performance, and future perspectives of the Spin-while-Burn process in manufacturing. This comprehensive book offers valuable insights into enhancing surface quality and productivity in the cutting of precise cylindrical shapes on challenging materials through spark erosion.
The Spinal Cord during the First and Early Second Trimesters 4- to 108-mm Crown-Rump Lengths: Atlas of Human Central Nervous System Development, Volume 14
by Shirley A. Bayer Joseph AltmanThis fourteenth of 15 short atlases reimagines the classic 5 volume Atlas of Human Central Nervous System Development. This volume presents sections of the spinal cord from specimens between 4 mm and 108 mm with detailed annotations. Extensive 3-D reconstructions show the early development of the germinal zones, the earliest neurons and early white matter accumulations at cervical levels only. Other 3-D reconstructions in older specimens show the progressive segregation of motor neuron columns at all levels in the ventral gray. The Glossary (available separately) gives definitions for all the terms used in this volume and all the others in the Atlas.Key Features Classic anatomical atlases Detailed labeling of the structures in the developing spinal cord offers updated terminology and the identification of unique developmental features, such as germinal matrices of specific neuronal populations and migratory streams of young neurons Appeals to neuroanatomists, developmental biologists, and clinical practitioners A valuable reference work on brain development that will be relevant for decades
The Spinal Cord during the Middle Second Trimester through the 4th Postnatal Month 130- to 440-mm Crown-Rump Lengths: Atlas of Human Central Nervous System Development, Volume 15
by Shirley A. Bayer Joseph AltmanThis last of 15 short atlases reimagines the classic 5 volume Atlas of Human Central Nervous System Development. This volume presents serial sections of the spinal cord from specimens between 130 mm and 440 mm with detailed annotations. The presentation of these specimens emphasizes the sequence of myelination in various fiber tracts.The Glossary (available separately) gives definitions for all the terms used in this volume and all the others in the Atlas.Key Features Classic anatomical atlases Detailed labeling of structures in the developing spinal cord offers updated terminology and the identification of unique developmental features, such as myelination gliosis and gradients of myelination in the spinal cord white matter Appeals to neuroanatomists, developmental biologists, and clinical practitioners A valuable reference work on brain development that will be relevant for decades
The Spinal Cord from Gestational Week 4 to the 4th Postnatal Month (Atlas of Human Central Nervous System Development)
by Shirley A. Bayer Joseph AltmanThis first volume in the Atlas of Human Central Nervous System Development series sets the stage with complete coverage of the spinal cord from gestational week 4 to the 4th postnatal month. 3D color images provide a holistic view of the structural changes during spinal cord morphogenesis. This landmark first volume provides quantitative summaries of several ontogenetic trends. It features all the stages of spinal cord development, offers fresh insights into the steps involved in the morphogenesis of the mature spinal cord, and shows the human spinal cord at its most primitive stage, when consisting mainly of neuroepithelial stem cells. This atlas is also available as part of the complete five volume series.
Spinal Evolution: Morphology, Function, and Pathology of the Spine in Hominoid Evolution
by Ella Been Asier Gómez-Olivencia Patricia Ann KramerThe vertebral spine is a key element of the human anatomy. Its main role is to protect the spinal cord and the main blood vessels. The axial skeleton, with its muscles and joints, provides stability for the attachment of the head, tail and limbs and, at the same time, enables the mobility required for breathing and for locomotion. Despite its great importance, the vertebral spine is often over looked by researchers because: a) vertebrae are fragile in nature, which makes their fossilization a rare event; b) they are metameric (seriated and repeated elements) that make their anatomical determination and, thus, their subsequent study difficult; and c) the plethora of bones and joints involved in every movement or function of the axial skeleton makes the reconstruction of posture, breathing mechanics and locomotion extremely difficult. It is well established that the spine has changed dramatically during human evolution. Spinal curvatures, spinal load transmission, and thoracic shape of bipedal humans are derived among hominoids. Yet, there are many debates as to how and when these changes occurred and to their phylogenetic, functional, and pathological implications. In recent years, renewed interest arose in the axial skeleton. New and exciting finds, mostly from Europe and Africa, as well as new methods for reconstructing the spine, have been introduced to the research community. New methodologies such as Finite Element Analysis, trabecular bone analysis, Geometric Morphometric analysis, and gait analysis have been applied to the spines of primates and humans. These provide a new and refreshing look into the evolution of the spine. Advanced biomechanical research regarding posture, range of motion, stability, and attenuation of the human spine has interesting evolutionary implications. Until now, no book that summarizes the updated research and knowledge regarding spinal evolution in hominoids has been available. The present book explores both these new methodologies and new data, including recent fossil, morphological, biomechanical, and theoretical advances regarding vertebral column evolution. In order to cover all of that data, we divide the book into four parts: 1) the spine of hominoids; 2) the vertebral spine of extinct hominins; 3) ontogeny, biomechanics and pathology of the human spine; and 4) new methodologies of spinal research. These parts complement each other and provide a wide and comprehensive examination of spinal evolution.
Spinel Nanoferrites: Synthesis, Properties and Applications (Topics in Mining, Metallurgy and Materials Engineering)
by Surender K. SharmaThis book highlights the complexity of spinel nanoferrites, their synthesis, physio-chemical properties and prospective applications in the area of advanced electronics, microwave devices, biotechnology as well as biomedical sciences. It presents an overview of spinel nanoferrites: synthesis, properties and applications for a wide audience: from beginners and graduate-level students up to advanced specialists in both academic and industrial sectors. There are 15 chapters organized into four main sections. The first section of the book introduces the readers to spinel ferrites and their applications in advanced electronics industry including microwave devices, whereas the second section mainly focus on the synthesis strategy and their physio-chemical properties. The last sections of the book highlight the importance of this class of nanomaterials in the field of biotechnology and biomedical sector with a special chapter on water purification.
Spineless: The Science of Jellyfish and the Art of Growing a Backbone
by Juli BerwaldA former ocean scientist goes in pursuit of the slippery story of jellyfish, rediscovering her passion for marine science and the sea's imperiled ecosystems.Jellyfish are an enigma. They have no centralized brain, but they see and feel and react to their environment in complex ways. They look simple, yet their propulsion systems are so advanced engineers are just learning how to mimic them. They produce some of the deadliest toxins on the planet and yet are undeniably alluring. Long ignored by science, they may be a key to ecosystem stability.Juli Berwald's journey into the world of jellyfish is a personal one. Over a decade ago she left the sea and her scientific career behind to raise a family in landlocked Austin, Texas. Increasingly dire headlines drew her back to jellies, as unprecedented jellyfish blooms toppled ecosystems and collapsed the world's most productive fisheries. What was unclear was whether these incidents were symptoms of a changing planet or part of a natural cycle.Berwald's desire to understand jellyfish takes her on a scientific odyssey. She travels the globe to meet the scientists who devote their careers to jellies, hitches rides on Japanese fishing boats to see giant jellyfish in the wild, raises jellyfish in her dining room, and throughout it all marvels at the complexity of these alluring and ominous biological wonders. Gracefully blending personal memoir with crystal-clear distillations of science, Spineless reveals that jellyfish are a bellwether for the damage we're inflicting on the climate and the oceans and a call to realize our collective responsibility for the planet we share.
Spinnen - Alles, was man wissen muss
by Wolfgang Nentwig Jutta Ansorg Angelo Bolzern Holger Frick Anne-Sarah Ganske Ambros Hänggi Christian Kropf Anna StäubliSpinnen sind Super-Raubtiere und vertilgen alles, was sie überwältigen können. Dafür haben sie unglaublich gute Fangtechniken und mit der Spinnenseide ein Werkzeug entwickelt, das die Materialtechnik vor Neid erblassen lässt. Die Männchen sind meist kleiner als die Weibchen und müssen sich, um nicht als leichte Beute missverstanden zu werden, beim Sex einiges einfallen lassen: Tanzen, Trommeln und Geschenke helfen fast immer. Spinnen benutzen ihr Gift sehr genau dosiert, und da der Mensch nicht auf ihrem Speisezettel steht, sind sie für uns harmlos. Die (unnötige) Angst vieler Menschen vor Spinnen findet kulturelle Wurzeln bereits im Mittelalter. Trotzdem ist Spinnenangst leicht therapierbar. Es gibt weder einen Lebensraum noch ein Gebäude ohne Spinnen. Und das ist gut so, denn sie verfügen über faszinierende Eigenschaften und ihre Welt ist voller Überraschungen. Alles, was man hierzu wissen muss, wird in diesem Buch in verständlicher Sprache von Fachleuten für Laien erklärt. Zudem werden einige der häufigsten Spinnenarten in Haus und Garten mit Tipps zur Beobachtung kurz vorgestellt.
The Spinning Magnet: The Force that Created the Modern World and Could Destroy It
by Alanna MitchellOur future might be a world without electronics or protection from lethal solar radiationThe magnetic North Pole will eventually trade places with the South Pole. Satellite evidence suggests to some scientists that the move has already begun, but most still think it won't happen for many decades. All agree that it has happened many times before and will happen again. But this time it will be different. It will be a very bad day for modern civilization. Award-winning science journalist Alanna Mitchell tells in The Spinning Magnet the fascinating history of one of the four fundamental physical forces in the universe, electro-magnetism. From investigations into magnetism in 13th century feudal France and the realization six hundred years later in the Victorian era that electricity and magnetism were essentially the same, to the discovery that the earth was itself a magnet, spinning in space with two poles and that those poles aperiodically reverse, this is an utterly engrossing narrative history of ideas and science that readers of Stephen Greenblatt and Sam Kean will love. But the recent finding that the Earth's magnetic force field is decaying ten times faster than previously thought, portending an imminent pole reversal, ultimately gives this story a spine tingling urgency. When the poles switch, a process that takes many years, the Earth is unprotected from solar radiation storms that would, among other things, wipe out all electromagnetic technology. No satellites, no internet, no smart phones--maybe no power grid at all. Such potentially cataclysmic solar storms are not unusual. The last one occurred in 2012 and we avoided returning to the dark ages only because the part of the sun that erupted happened to be facing away from the Earth. One leading US researcher is already drawing maps of the parts of the planet that would likely become uninhabitable.
The Spinning Magnet: The Electromagnetic Force That Created the Modern World--and Could Destroy It
by Alanna MitchellThe mystery of Earth's invisible, life-supporting powerAlanna Mitchell's globe-trotting history of the science of electromagnetism and the Earth's magnetic field--right up to the latest indications that the North and South Poles may soon reverse, with apocalyptic results--will soon change the way you think about our planet.Award-winning journalist Alanna Mitchell's science storytelling introduce intriguing characters--from the thirteenth-century French investigations into magnetism and the Victorian-era discover that electricity and magnetism emerge from the same fundamental force to the latest research. No one has ever told so eloquently how the Earth itself came to be seen as a magnet, spinning in space with two poles, and that those poles have dramatically reversed many time, often coinciding with mass extinctions. The most recent reversal was 780,000 years ago.Mitchell explores indications that the Earth's magnetic force field is decaying faster than previously thought. When the poles switch, a process that takes many years, the Earth is unprotected from solar radiation storms that would, among other disturbances, wipe out much and possible all of our electromagnetic technology. Navigation for all kinds of animals is disrupted without a stable, magnetic North Pole. But can you imagine no satellites, no Internet, no smartphones--maybe no power grids at all?Alanna Mitchell offers a beautifully crafted narrative history of surprising ideas and science, illuminating invisible parts of our own planet that are constantly changing around us.
The Spinning Magnet: The Force That Created the Modern World – and Could Destroy It
by Alanna MitchellMany times through deep history Earth&’s magnetic poles have switched places, leaving our planet&’s protective shield weaker and life vulnerable to devastating solar storms. The last time it happened was 780,000 years ago, long before humans emerged, but it won&’t be long until it happens again. And when it does, will it send us back to the Stone Age? The Spinning Magnet is a fascinating insight into what may lie ahead. From the pivotal discoveries of Victorian scientists to the possibility of solar radiation wiping out power grids, and the secrets of electromagnetism, Alanna Mitchell reveals the truth behind one of the most powerful forces in the universe.
Spinning Strings and Correlation Functions in the AdS/CFT Correspondence (Springer Theses)
by Juan Miguel NietoThis book addresses several aspects of the integrable structure of the AdS/CFT correspondence. In particular it presents computations made on both sides of the AdS/CFT correspondence, at weak and at strong coupling. On the string theory side of the correspondence, the book focuses on the evaluation of the energy spectrum of closed string solutions moving in some deformed backgrounds that preserve integrability. On the gauge theory side, it explores various formal problems arising in the computation of two and three-point functions by means of the Algebraic Bethe Ansatz and the Quantum Inverse Scattering method. The book features numerous results on integrability in the context of the AdS/CFT correspondence. Self-contained and pedagogical, it includes general discussions and detailed presentations on the use of integrable systems techniques and their applications.
Spinors in Four-Dimensional Spaces
by Gerardo F. Torres del CastilloWithout using the customary Clifford algebras frequently studied in connection with the representations of orthogonal groups, this book gives an elementary introduction to the two-component spinor formalism for four-dimensional spaces with any signature. Some of the useful applications of four-dimensional spinors, such as Yang-Mills theory, are derived in detail using illustrative examples. Spinors in Four-Dimensional Spaces is aimed at graduate students and researchers in mathematical and theoretical physics interested in the applications of the two-component spinor formalism in any four-dimensional vector space or Riemannian manifold with a definite or indefinite metric tensor. This systematic and self-contained book is suitable as a seminar text, a reference book, and a self-study guide.
Spins in Chemistry
by Roy McweenyOriginally delivered as a series of lectures, this volume systematically traces the evolution of the "spin" concept from its role in quantum mechanics to its assimilation into the field of chemistry. Author Roy McWeeny presents an in-depth illustration of the deductive methods of quantum theory and their application to spins in chemistry, following the path from the earliest concepts to the sophisticated physical methods employed in the investigation of molecular structure and properties. Starting with the origin and development of the spin concept, the text advances to an examination of spin and valence; reviews a simple example of the origin of spin Hamiltonians; and explores spin density, spin populations, and spin correlation. Additional topics include nuclear hyperfine effects and electron spin-spin coupling, the g tensor, and chemical shifts and nuclear spin-spin coupling.
Spintronics: A Primer
by Jean-Philippe AnsermetA sound understanding of magnetism, transport theory, spin relaxation mechanisms, and magnetization dynamics is necessary to engage in spintronics research. In this primer, special effort has been made to give straightforward explanations for these advanced concepts.This book will be a valuable resource for graduate students in spintronics and related fields. Concepts of magnetism such as exchange interaction, spin-orbit coupling, spin canting, and magnetic anisotropy are introduced. Spin-dependent transport is described using both thermodynamics and Boltzmann’s equation, including Berry curvature corrections. Spin relaxation phenomenology is accounted for with master equations for quantum spin systems coupled to a bath. Magnetic resonance principles are applied to describe spin waves in ferromagnets, cavity-mode coupling in antiferromagnets, and coherence phenomena relevant to spin qubits applications.Key Features:• A pedagogical approach to foundational concepts in spintronics with simple models that can be calculated to enhance understanding.• Nineteen chapters, each beginning with a historical perspective and ending with an outlook on current research.• 1200 references, ranging from landmark papers to frontline publications.
Spintronics: Fundamentals and Applications
by Puja Dey Jitendra Nath RoyThis book highlights the overview of Spintronics, including What is Spintronics ?; Why Do We Need Spintronics ?; Comparative merit-demerit of Spintronics and Electronics ; Research Efforts put on Spintronics ; Quantum Mechanics of Spin; Dynamics of magnetic moments : Landau-Lifshitz-Gilbert Equation; Spin-Dependent Band Gap in Ferromagnetic Materials; Functionality of ‘Spin’ in Spintronics; Different Branches of Spintronics etc. Some important notions on basic elements of Spintronics are discussed here, such as – Spin Polarization, Spin Filter Effect, Spin Generation and Injection, Spin Accumulation, Different kinds of Spin Relaxation Phenomena, Spin Valve, Spin Extraction, Spin Hall Effect, Spin Seebeck Effect, Spin Current Measurement Mechanism, Magnetoresistance and its different kinds etc. Concept of Giant Magnetoresistance (GMR), different types of GMR, qualitative and quantitative explanation of GMR employing Resistor Network Theory are presented here. Tunnelling Magnetoresistance (TMR), Magnetic Junctions, Effect of various parameters on TMR, Measurement of spin relaxation length and time in the spacer layer are covered here. This book highlights the concept of Spin Transfer Torque (STT), STT in Ferromagnetic Layer Structures, STT driven Magnetization Dynamics, STT in Magnetic Multilayer Nanopillar etc. This book also sheds light on Magnetic Domain Wall (MDW) Motion, Ratchet Effect in MDW motion, MDW motion velocity measurements, Current-driven MDW motion, etc. The book deals with the emerging field of spintronics, i.e., Opto-spintronics. Special emphasis is given on ultrafast optical controlling of magnetic states of antiferromagnet, Spin-photon interaction, Faraday Effect, Inverse Faraday Effect and outline of different all-optical spintronic switching. One more promising branch i.e., Terahertz Spintronics is also covered. Principle of operation of spintronic terahertz emitter, choice of materials, terahertz writing of an antiferromagnetic magnetic memory device is discussed. Brief introduction of Semiconductor spintronics is presented that includes dilute magnetic semiconductor, feromagnetic semiconductor, spin polarized semiconductor devices, three terminal spintronic devices, Spin transistor, Spin-LED, and Spin-Laser. This book also emphasizes on several modern spintronics devices that includes GMR Read Head of Modern Hard Disk Drive, MRAM, Position Sensor, Biosensor, Magnetic Field sensor, Three Terminal Magnetic Memory Devices, Spin FET, Race Track Memory and Quantum Computing.
Spintronics
by Claudia Felser Gerhard H FecherSpintronics is an emerging technology exploiting the spin degree of freedom and has proved to be very promising for new types of fast electronic devices. Amongst the anticipated advantages of spintronics technologies, researchers have identified the non-volatile storage of data with high density and low energy consumption as particularly relevant. This monograph examines the concept of half-metallic compounds perspectives to obtain novel solutions and discusses several oxides such as perovskites, double perovskites and CrO2 as well as Heusler compounds. Such materials can be designed and made with high spin polarization and, especially in the case of Heusler compounds, many material-related problems present in current-day 3d metal systems, can be overcome. Spintronics: From Materials to Devices provides an insight into the current research on Heusler compounds and offers a general understanding of structure-property relationships, including the influence of disorder and correlations on the electronic structure and interfaces. Spintronics devices such as magnetic tunnel junctions (MTJs) and giant magnetoresistance (GMR) devices, with current perpendicular to the plane, in which Co2 based Heusler compounds are used as new electrode materials, are also introduced. From materials design by theoretical methods and the preparation and properties of the materials to the production of thin films and devices, this monograph represents a valuable guide to both novices and experts in the fields of Chemistry, Physics, and Materials Science.
Spintronics Handbook, Second Edition: Volume One: Metallic Spintronics
by Igor Žutić Evgeny TsymbalSpintronics Handbook, Second Edition offers an update on the single most comprehensive survey of the two intertwined fields of spintronics and magnetism, covering the diverse array of materials and structures, including silicon, organic semiconductors, carbon nanotubes, graphene, and engineered nanostructures. It focuses on seminal pioneering work, together with the latest in cutting-edge advances, notably extended discussion of two-dimensional materials beyond graphene, topological insulators, skyrmions, and molecular spintronics. The main sections cover physical phenomena, spin-dependent tunneling, control of spin and magnetism in semiconductors, and spin-based applications.
Spintronics Handbook, Second Edition: Volume Two: Semiconductor Spintronics
by Igor Žutić Evgeny TsymbalThe second edition offers an update on the single most comprehensive survey of the two intertwined fields of spintronics and magnetism, covering the diverse array of materials and structures, including silicon, organic semiconductors, carbon nanotubes, graphene, and engineered nanostructures. It focuses on seminal pioneering work, together with the latest in cutting-edge advances, notably extended discussion of two-dimensional materials beyond graphene, topological insulators, skyrmions, and molecular spintronics. The main sections cover physical phenomena, spin-dependent tunneling, control of spin and magnetism in semiconductors, and spin-based applications.
Spintronics Handbook, Second Edition: Volume Three: Nanoscale Spintronics and Applications
by Igor Žutić Evgeny TsymbalSpintronics Handbook, Second Edition offers an update on the single most comprehensive survey of the two intertwined fields of spintronics and magnetism, covering the diverse array of materials and structures, including silicon, organic semiconductors, carbon nanotubes, graphene, and engineered nanostructures. It focuses on seminal pioneering work, together with the latest in cutting-edge advances, notably extended discussion of two-dimensional materials beyond graphene, topological insulators, skyrmions, and molecular spintronics. The main sections cover physical phenomena, spin-dependent tunneling, control of spin and magnetism in semiconductors, and spin-based applications. Features: Presents the most comprehensive reference text for the overlapping fields of spintronics (spin transport) andmagnetism. Covers the full spectrum of materials and structures, from silicon and organic semiconductors to carbon nanotubes, graphene, and engineered nanostructures. Extends coverage of two-dimensional materials beyond graphene, including molybdenum disulfide and study of their spin relaxation mechanisms Includes new dedicated chapters on cutting-edge topics such as spin-orbit torques, topological insulators, half metals, complex oxide materials and skyrmions. Discusses important emerging areas of spintronics with superconductors, spin-wave spintronics, benchmarking of spintronics devices, and theory and experimental approaches to molecular spintronics. Evgeny Tsymbal's research is focused on computational materials science aiming at the understanding of fundamental properties of advanced ferromagnetic and ferroelectric nanostructures and materials relevant to nanoelectronics and spintronics. He is a George Holmes University Distinguished Professor at the Department of Physics and Astronomy of the University of Nebraska-Lincoln (UNL), Director of the UNL’s Materials Research Science and Engineering Center (MRSEC), and Director of the multi-institutional Center for NanoFerroic Devices (CNFD). Igor Žutić received his Ph.D. in theoretical physics at the University of Minnesota. His work spans a range of topics from high-temperature superconductors and ferromagnetism that can get stronger as the temperature is increased, to prediction of various spin-based devices. He is a recipient of 2006 National Science Foundation CAREER Award, 2005 National Research Council/American Society for Engineering Education Postdoctoral Research Award, and the National Research Council Fellowship (2003-2005). His research is supported by the National Science Foundation, the Office of Naval Research, the Department of Energy, and the Airforce Office of Scientific Research.
The Spiral Galaxy M33
by P. HodgeThis book summarizes the gathering of information on and the growing understanding of M33 from the 1920s, when Hubble first determined its true nature, to the 21st century, when the Hubble Telescope probed deeply into its many secrets. With its regular symmetrical spiral structure, and its being not tilted too much and near enough to allow detailed studies of its stars, M33 is well-suited for the study of a typical spiral galaxy. In this work, Paul Hodge places current research on M33 (and similar galaxies) in both historical and global perspectives. The book is written in a language accessible for specialists and non-specialists, for professional and amateur astronomers, for scientists and the curious public and, most importantly, for students.
The Spiral Galaxy M33 (Astrophysics and Space Science Library #379)
by P. HodgeThis book summarizes the gathering of information on and the growing understanding of M33 from the 1920s, when Hubble first determined its true nature, to the 21st century, when the Hubble Telescope probed deeply into its many secrets. With its regular symmetrical spiral structure, and its being not tilted too much and near enough to allow detailed studies of its stars, M33 is well-suited for the study of a typical spiral galaxy. In this work, Paul Hodge places current research on M33 (and similar galaxies) in both historical and global perspectives. The book is written in a language accessible for specialists and non-specialists, for professional and amateur astronomers, for scientists and the curious public and, most importantly, for students.
Spirals and Vortices: In Culture, Nature, and Science (The Frontiers Collection)
by Stefan C. Müller Kinko TsujiThis richly illustrated book explores the fascinating and ubiquitous occurrence of spirals and vortices in human culture and in nature. Spiral forms have been used as elements in the arts for thousands of years, whereas their role in nature and science – from DNA and sea shells to galaxies – is still a topic of investigation in numerous fields. Following an introduction to the cultural history of spiral forms, the book presents contributions from leading experts, who describe the origins, mechanisms and dynamics of spirals and vortices in their special fields. As a whole the book provides a valuable source of information, while also taking the reader on an aesthetic and scientific journey through the world of spiral forms.
Spirit and Reason: The Vine Deloria Jr. Reader
by Barbara Deloria Samuel Scinta Vine Deloria Jr. Kristen FoehnerA collection of Vine Deloria Jr.'s writings from books, essays, and articles, as well as previously unpublished pieces.