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| diagram of equinox and solstice: Planetary Diagrams for Roman Astronomy in Medieval Europe, Ca. 800-1500 Bruce Eastwood, |
| diagram of equinox and solstice: Planetary Diagrams for Roman Astronomy in Medieval Europe, Ca. 800-1500 Bruce Eastwood, Gerd Grasshoff, 2004 Early medieval astronomy, esp. in the era of Charlemagne & his successors, consisted of texts that went far beyond the boundaries of computus, which modern scholars have long believed to be the only significant context for astronomical studies of that time. The texts contained innovative diagrams where no other sign of divergence from the text could be seen. Such diagrams were found to provide an indication of understandings of the texts -- which were different from those of modern scholars. Contents: Astronomy & Its Teaching in Carolingian Europe; Functions & Locations of Planetary Diagrams; Sources & Topics of Planetary Diagrams; Plinian Diagrams; Macrobian Diagrams; Calcidian Diagrams; & Capellan Diagrams. Illus. This is a print on demand publication. |
| diagram of equinox and solstice: The Stones of Time Martin Brennan, 1994-10 The Stones of Time presents one of the most dramatic archaeological detective stories of our time. Predating Stonehenge by at least a thousand years, the stone complexes of ancient Ireland have been extensively studied, yet have refused to give up their mystery. The most complete record of Irish megalithic art ever published. |
| diagram of equinox and solstice: Discovering Physical Geography Alan F. Arbogast, 2017-05-08 With Wiley’s Enhanced E-Text, you get all the benefits of a downloadable, reflowable eBook with added resources to make your study time more effective, including: • Visual Concept Checks • Imbedded Glossary with clickable references & key words • Show & Hide Solutions with automatic feedback Arbogast’s Discovering Physical Geography, 4th Edition provides interactive questions that help readers comprehend important Earth processes. The Fourth Edition continues to place great emphasis on how relevant physical geography is to each reader’s life. With an enhanced focus on the interconnections between humans and their environment, this text includes increased coverage of population growth and its impact on the environment. Updated case studies are included, as well as new sections dealing with human interactions with solar energy, wind power, soils, and petroleum. This text is welcoming, taking readers on a tour of “discovery”, and delivers content that is sound and based on the most current scientific research. |
| diagram of equinox and solstice: Exploring Ancient Skies David H. Kelley, Eugene F. Milone, 2005-12-06 Exploring Ancient Skies brings together the methods of archaeology and the insights of modern astronomy to explore the science of astronomy as it was practiced in various cultures prior to the invention of the telescope. The book reviews an enormous and growing body of literature on the cultures of the ancient Mediterranean, the Far East, and the New World (particularly Mesoamerica), putting the ancient astronomical materials into their archaeological and cultural contexts. The authors begin with an overview of the field and proceed to essential aspects of naked-eye astronomy, followed by an examination of specific cultures. The book concludes by taking into account the purposes of ancient astronomy: astrology, navigation, calendar regulation, and (not least) the understanding of our place and role in the universe. Skies are recreated to display critical events as they would have appeared to ancient observers - events such as the supernova of 1054, the 'lion horoscope' or the 'Star of Bethlehem.' Exploring Ancient Skies provides a comprehensive overview of the relationships between astronomy and other areas of human investigation. It will be useful as a reference for scholars and students in both astronomy and archaeology, and will be of compelling interest to readers who seek a broad understanding of our collective intellectual history. |
| diagram of equinox and solstice: Visualizing Weather and Climate Bruce Anderson, Alan H. Strahler, 2008-09-22 Visualizing Weather and Climate Change will capture the reader's interest in weather and climate and then use that interest to engage them in activities that demonstrate the science that serves as the basis of the discipline. Sections such as Eye on the Atmosphere use beautiful imagery to help them see the atmosphere through the eyes of a meteorologist and ask scientific questions that place significant features in atmospheric context. It also includes expanded coverage of global change and recent phenomena. Chapter summaries, self-tests and critical thinking questions help prepare readers for quizzes and tests while the illustrated case studies offer a wide variety of in-depth examinations that address important issues in the field of environmental science. |
| diagram of equinox and solstice: Encyclopaedia Britannica Hugh Chisholm, 1910 This eleventh edition was developed during the encyclopaedia's transition from a British to an American publication. Some of its articles were written by the best-known scholars of the time and it is considered to be a landmark encyclopaedia for scholarship and literary style. |
| diagram of equinox and solstice: The Ages of Man Elizabeth Sears, 2019-02-19 Elizabeth Sears here combines rich visual material and textual evidence to reveal the sophistication, warmth, and humor of medieval speculations about the ages of man. Medieval artists illustrated this theme, establishing the convention that each of life's phases in turn was to be represented by the figure of a man (or, rarely, a woman) who revealed his age through size, posture, gesture, and attribute. But in selectiing the number of ages to be depicted--three, four, five, six, seven, ten, or twelve--and in determining the contexts in which the cycles should appear, painters and sculptors were heirs to longstanding intellectual tradtions. Ideas promulgated by ancient and medieval natural historians, physicians, and astrologers, and by biblical exegetes and popular moralists, receive detailed treatment in this wide-ranging study. Professor Sears traces the diffusion of well-established schemes of age division from the seclusion of the early medieval schools into wider circles in the later Middle Ages and examines the increasing use of the theme as a structure of edifying discourse, both in art and literature. Elizabeth Sears is Assistant Professor of Art History at Princeton University. Originally published in 1986. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905. |
| diagram of equinox and solstice: A New Manual of the Elements of Astronomy, Descriptive and Mathematical Compresing the Latest Discoveries and Theoretic Views, with Directions for the Use of the Globes, and for Studying the Constellations Henry Kiddle, 1875 |
| diagram of equinox and solstice: Fundamentals of Solar Radiation Lucien Wald, 2021-05-11 The sun radiates a tremendous amount of energy, called solar energy or solar radiation, which is the main natural source of energy on the Earth, by far. Because solar radiation is the almost unique supplier of energy to the Earth, it has a primary influence on life and activities on the Earth. The climate is a first example, but there are many others, such as plant growth or human health, or even the design of buildings, the production of energy, notably electrical and thermal, or even aging materials. This book aims to provide simple answers to anyone who has questions about solar radiation. Its ambition is to help by presenting the fundamental elements of the solar radiation received on the ground. The book includes many examples and numerous illustrations, as well as some simple but fairly precise equations to calculate the various elements covered and to reproduce the figures and graphs. The first of the three parts of this book is devoted to the relative geometry between the direction of the sun and an observer on the ground as well as to the solar radiation emitted by the sun and received at the top of the atmosphere. The orbit of the Earth around the sun and the solar declination are described. The concept of time is introduced which is closely linked to the solar cycle and the rotation of the Earth on itself. Equations are given to calculate the solar radiation received on a horizontal or inclined surface located at the top of the atmosphere. The spectral distribution of the extraterrestrial solar radiation is described. The second part of this book addresses how the solar radiation incident at the top of the atmosphere is attenuated and modified in its downward path to the ground. The reflection of the radiation by the ground is presented. The solar radiation received on the ground by a horizontal or inclined collector plane, such as a natural slope or a rooftop, is discussed, as well as its spectral distribution. The variability of the radiation is addressed in relation to the properties of solar radiation estimated from the measurements. The third part deals with direct or indirect measurements of the solar radiation received on the ground over a given integration time (minute, hour, day, or month), whether for total radiation or radiation in a spectral range such as ultraviolet (UV), or daylight, or photosynthetically active radiation (PAR). It also explains how to check the plausibility of the measurements. Fundamentals of Solar Radiation will be a valuable resource to all professionals, engineers, researchers, students, and other practitioners that seek an understanding of solar radiation. |
| diagram of equinox and solstice: Astronomy: The Human Quest for Understanding Dale A. Ostlie, 2022-08-11 Since humans first looked up at the stars, astronomy has had a particular ability to stir the imagination and challenge the thinking of scientists and non-scientists alike. Astronomy: The Human Quest for Understanding is an introductory astronomy textbook specifically designed to relate to non-science majors across a wide variety of disciplines, nurture their curiosity, and develop vital science-based critical-thinking skills. This textbook provides an introduction to how science operates in practice and what makes it so successful in uncovering nature's secrets. Given that the study of astronomy dates back thousands of years, it is the ideal subject for tracing the development of the physical sciences and how our evolving understanding of nature has influenced, and been influenced by, mathematics, philosophy, religion, geography, politics, and more. This historical approach also illustrates how wrong turns have been taken, and how the inherent self-correcting nature of science through constant verification and the falsifiability of truly scientific theories ultimately leads us back to a more productive path in our quest for understanding. This approach also points out why, as a broadly educated citizenry, students of all disciplines must understand how scientists arrive at conclusions, and how science and technology have become central features of modern society. In discussing this fascinating and beautiful universe of which we are a part, it is necessary to illustrate the fundamental role that mathematics plays in decoding nature's mysteries. Unlike other similar textbooks, some basic mathematics is integrated naturally into the text, together with interpretive language, and supplemented with numerous examples; additional tutorials are provided on the book's companion website. Astronomy: The Human Quest for Understanding leads the reader down the path to our present-day understanding of our Solar System, stars, galaxies, and the beginning and evolution of our universe, along with profound questions still to be answered in this ancient, yet rapidly changing field. |
| diagram of equinox and solstice: The Cosmology of the Bhāgavata Purāṇa Richard L. Thompson, 2007 From the flat earth to the sun`s chariot traditional spiritual texts seem wedded to outmoded cosmologies that show, at best, the scientific limitations of their authors. The Bhagavata Purana, one of the classical scriptures of Hinduism, seems, at first glance, to be no exception. However, a closer examination of this text reveals unexpected depths of knowledge in ancient cosmology. This shows that the cosmology of the Bhagavata Purana is a sophisticated system, with multiple levels of meaning that encode at least four different astronomical, geographical, and spiritual world models. By viewing the text in the light of modern astronomy, Richard Thompson shows how ancient scientists expressed exact knowledge in apparently mythological terms. Comparison with the ancient traditions of Egypt and the Near East shows early cultural connections between India and these regions including a surprisingly advanced science. However, quantitative science is only part of the picture. This work also offers a clear understanding of how the spiritual dimension was integrated into ancient Indian cosmology. Contents Introduction to Bhagavata Cosmology, 1. Introduction to Texts, 2. The Islands and Oceans of Bhu-mandala, 3. The Solar System in Projection, 4. The Solar system in three Dimensions, 5. The Earth and Local Geography, 6. The Realm of the Demigods, 7. The Greater Universe, 8. Notes on Time and Chronology, 9. General Observations, Appendices, Bibliography, List of tables, Glossary, Index. |
| diagram of equinox and solstice: A New Manual of the Elements of Astronomy Henry Kiddle, 1870 |
| diagram of equinox and solstice: The Seasons Pictured in Forty-eight Sun Views of the Earth and Twenty-four Zodiacal Maps & Other Drawings Richard Anthony Proctor, 1885 |
| diagram of equinox and solstice: A New Manual of the Elements of Astronomy, Descriptive and Mathematical Henry Kiddle, 1877 |
| diagram of equinox and solstice: Tropical Architecture Maxwell Fry, Jane Drew, 1964 In the dry and humid zones |
| diagram of equinox and solstice: An Introduction to Satellite Image Interpretation Eric D. Conway, Maryland Space Grant Consortium, 1997-04 The program requires a Macintosh, Windows, or Windows 95 operating system. |
| diagram of equinox and solstice: The Reference Catalogue of Current Literature , 1893 |
| diagram of equinox and solstice: The Canadian Teacher ... Gideon E. Henderson, Matthew Parkinson, 1898 |
| diagram of equinox and solstice: Physical Geography William M. Marsh, Martin M. Kaufman, 2013 A systems-based approach to physical geography written in an easy-to-understand narrative style that is closely integrated with clear, single-concept illustrations. |
| diagram of equinox and solstice: Heating, Cooling, Lighting Norbert M. Lechner, 2014-09-23 Sustainable environmental control through building design Heating, Cooling, and Lighting is the industry standard text on environmental control systems with the emphasis on sustainable design. By detailing the many factors that contribute to the comfort in a building, this book helps architects minimize mechanical systems and energy usage over the life of the building by siting, building design, and landscaping to maximize natural heating, cooling, and lighting. This new fourth edition includes new information on integrated design strategies and designing for the Tropics. Resources include helpful case studies, checklists, diagrams, and a companion website featuring additional cases, an image bank, and instructor materials. Designing buildings that require less energy to heat, cool, and light means allowing the natural energy of the sun and wind to reduce the burden on the mechanical and electrical systems. Basic design decisions regarding size, orientation, and form have a great impact on the sustainability, cost, and comfort of a building. Heating, Cooling, and Lighting provides detailed guidance for each phase of a design project. Readers will: Understand the concept of sustainability as applied to energy sources Review the basic principles of thermal comfort, and the critical role of climate Learn the fundamentals of solar responsive design, including active and passive solar systems as well as photovoltaics Discover how siting, architectural design, and landscaping can reduce the requirements for mechanical and electrical systems In sustainable design, mechanical, and electrical systems should be used to only accomplish what the architect could not by the design of the building itself. With this in mind, designers require a comprehensive understanding of both the properties of energy and the human factors involved in thermal comfort. Heating, Cooling, and Lighting is the complete, industry-leading resource for designers interested in sustainable environmental control. |
| diagram of equinox and solstice: The History and Practice of Ancient Astronomy James Evans, 1998-10 Birth of astronomy -- Celestial sphere -- Some applications of spherics -- Calendars and time reckoning -- Solar theory -- Fixed stars -- Planetary theory -- Frequently used tables -- Appendix : patterns for models. |
| diagram of equinox and solstice: Mastering Photographic Composition, Creativity, and Personal Style Alain Briot, 2010-12-14 Alain Briot states that, The personality of the photographer must be present in the image for an artistic photograph to have value. And in this book he sets out to teach the things that are essential in achieving this goal. Following his successful first book, Mastering Landscape Photography, Briot goes beyond the conventional rules of composition and takes on a fresh, new approach to teaching the art of photography. Based upon his personal experiences as an artist, teacher, and photographer, he opens new doors to the reader-doors leading to new ways of seeing and composing images. Briot approaches fine art photography as being a combination of art and technique. In this new book he addresses both of these by presenting artistic and technical information. On the artistic side, Briot introduces artistic concepts that have been rarely, if ever, associated with photography. On the technical side, he presents numerous tools that can help you learn how to create better photographs and provides technical solutions to common photographic problems. The author practices photography as a fine art. What matters most to him is how photography can be used to express feelings and emotions. For Briot, a good photograph must be both artistically inspired and technically excellent. To have just one of these two elements is not enough for a fine art photograph to be successful. Topics include: - How to compose with color, with black and white, and with light - Why you need to consider your audience while composing a photograph - Recreate the emotions you felt when you captured your photographs - How the elements of color-hue, contrast, and saturation-work in your images - How to control the elements that have a visual effect in your photographs - How to draw upon your personal way of seeing and then share your vision - How to diagnose image maladies and apply the proper remedies - How to define a color palette for a specific photograph - How to use compositional elements to develop a personal style Forweword by Tony Sweet |
| diagram of equinox and solstice: Astronomy Simon Newcomb, Edward Singleton Holden, 1890 |
| diagram of equinox and solstice: Archaeoastronomy and the Maya Gerardo Aldana y Villalobos, Edwin L. Barnhart, 2014-05-30 Archaeoastronomy and the Maya illustrates archaeoastronomical approaches to ancient Mayan cultural production. The book is contextualized through a history of archaeoastronomical investigations into Mayan sites, originating in the 19th century discovery of astronomical tables within hieroglyphic books. Early 20th century archaeological excavations revealed inscriptions carved into stone that also preserved astronomical records, along with architecture that was built to reflect astronomical orientations. These materials provided the basis of a growing professionalized archaeoastronomy, blossoming in the 1970s and expanding into recent years. The chapters here exemplify the advances made in the field during the early 21st century as well as the on-going diversity of approaches, presenting new perspectives and discoveries in ancient Mayan astronomy that result from recent studies of architectural alignments, codices, epigraphy, iconography, ethnography, and calendrics. More than just investigations of esoteric ancient sciences, studies of ancient Mayan astronomy have profoundly aided our understanding of Mayan worldviews. Concepts of time and space, meanings encoded in religious art, intentions underlying architectural alignments, and even methods of political legitimization are all illuminated through the study of Mayan astronomy. |
| diagram of equinox and solstice: The Science of the Stars Alfred John Pearce (astrologer.), 1881 |
| diagram of equinox and solstice: Time-saver Standards for Architectural Design Data John Hancock Callender, 1974 |
| diagram of equinox and solstice: Astrology, Almanacs, and the Early Modern English Calendar Phebe Jensen, 2020-11-23 Astrology, Almanacs, and the Early Modern English Calendar is a handbook designed to help modern readers unlock the vast cultural, religious, and scientific material contained in early modern calendars and almanacs. It outlines the basic cosmological, astrological, and medical theories that undergirded calendars, traces the medieval evolution of the calendar into its early modern format against the background of the English Reformation, and presents a history of the English almanac in the context of the rise of the printing industry in England. The book includes a primer on deciphering early modern printed almanacs, as well as an illustrated guide to the rich visual and verbal iconography of seasons, months, and days of the week, gathered from material culture, farming manuals, almanacs, and continental prints. As a practical guide to English calendars and the social, mathematical, and scientific practices that inform them, Astrology, Almanacs,and the Early Modern English Calendar is an indispensable tool for historians, cultural critics, and literary scholars working with the primary material of the period, especially those with interests in astrology, popular science, popular print, the book as material artifact, and the history of time-reckoning. |
| diagram of equinox and solstice: Reuse and Recycling of Lithium-Ion Power Batteries Guangjin Zhao, 2017-05-16 A comprehensive guide to the reuse and recycling of lithium-ion power batteries—fundamental concepts, relevant technologies, and business models Reuse and Recycling of Lithium-Ion Power Batteries explores ways in which retired lithium ion batteries (LIBs) can create long-term, stable profits within a well-designed business operation. Based on a large volume of experimental data collected in the author’s lab, it demonstrates how LIBs reuse can effectively cut the cost of Electric Vehicles (EVs) by extending the service lifetime of the batteries. In addition to the cost benefits, Dr. Guangjin Zhao discusses how recycling and reuse can significantly reduce environmental and safety hazards, thus complying with the core principles of environment protection: recycle, reuse and reduce. Offering coverage of both the fundamental theory and applied technologies involved in LIB reuse and recycling, the book's contents are based on the simulated and experimental results of a hybrid micro-grid demonstration project and recycling system. In the opening section on battery reuse, Dr. Zhao introduces key concepts, including battery dismantling, sorting, second life prediction, re-packing, system integration and relevant technologies. He then builds on that foundation to explore advanced topics, such as resource recovery, harmless treatment, secondary pollution control, and zero emissions technologies. Reuse and Recycling of Lithium-Ion Power Batteries: • Provides timely, in-depth coverage of both the reuse and recycling aspects of lithium-ion batteries • Is based on extensive simulation and experimental research performed by the author, as well as an extensive review of the current literature on the subject • Discusses the full range of critical issues, from battery dismantling and sorting to secondary pollution control and zero emissions technologies • Includes business models and strategies for secondary use and recycling of power lithium-ion batteries Reuse and Recycling of Lithium-Ion Power Batteries is an indispensable resource for researchers, engineers, and business professionals who work in industries involved in energy storage systems and battery recycling, especially with the manufacture and use (and reuse) of lithium-ion batteries. It is also a valuable supplementary text for advanced undergraduates and postgraduate students studying energy storage, battery recycling, and battery management. |
| diagram of equinox and solstice: Finding Our Place in the Solar System Todd Timberlake, Paul Wallace, 2019-03-28 Details the science behind the Copernican Revolution, the transition from the Earth-centered cosmos to a modern understanding of planetary orbits. |
| diagram of equinox and solstice: Ordering the Heavens Bruce Eastwood, 2007 Based on scores of medieval manuscript texts and diagrams, the book shows how Roman sources were used in the age of Charlemagne to reintroduce and expand a qualitative picture of articulated geometrical order in the heavens. |
| diagram of equinox and solstice: Town Planning in Practice Sir Raymond Unwin, 1932 |
| diagram of equinox and solstice: DSCOVR EPIC/NISTAR: 5 years of observing earth from the first lagrangian point Alexei Lyapustin, Alexander Marshak, Gregory Schuster, 2022-12-12 |
| diagram of equinox and solstice: Part 2. Matter, Energy, and Our Planet Michael Pidwirny, 2023-06-28 This document consists of two chapters from the eBook Understanding Physical Geography: Chapter 3: Matter, Energy and the Universe and Chapter 4: Solar Radiation and the Earth. This eBook was written for students taking introductory Physical Geography taught at a college or university. For the chapters currently available on Google Play presentation slides (Powerpoint and Keynote format) and multiple choice test banks are available for Professors using my eBook in the classroom. Please contact me via email at Michael.Pidwirny@ubc.ca if you would like to have access to these resources. The various chapters of the Google Play version of Understanding Physical Geography are FREE for individual use in a non-classroom environment. This has been done to support life long learning. However, the content of Understanding Physical Geography is NOT FREE for use in college and university courses in countries that have a per capita GDP over $25,000 (US dollars) per year where more than three chapters are being used in the teaching of a course. More specifically, for university and college instructors using this work in such wealthier countries, in a credit-based course where a tuition fee is accessed, students should be instructed to purchase the paid version of this content on Google Play which is organized as one of six Parts (organized chapters). One exception to this request is a situation where a student is experiencing financial hardship. In this case, the student should use the individual chapters which are available from Google Play for free. The cost of these Parts works out to only $0.99 per chapter in USA dollars, a very small fee for my work. When the entire textbook (30 chapters) is finished its cost will be only $29.70 in USA dollars. This is far less expensive than similar textbooks from major academic publishing companies whose eBook are around $50.00 to $90.00. Further, revenue generated from the sale of this academic textbook will provide “the carrot” to entice me to continue working hard creating new and updated content. Thanks in advance to instructors and students who abide by these conditions. IMPORTANT - This Google Play version is best viewed with a computer using Google Chrome, Firefox or Apple Safari browsers. |
| diagram of equinox and solstice: Astrowatch Ben Mayer, 1988 The author of Starwatch now offers astronomically precise photographic maps which enable the readers to find the 12 constellations of the zodiac between sunset and dawn on any day of the year. Each zodiacal system is illustrated with a traceable photographic map of the starfield as it appears to the unaided eye, so home astronomers can locate and identify its brightest stars. Illustrated. |
| diagram of equinox and solstice: The Copernican Revolution Thomas S. Kuhn, 1957 An account of the Copernican Revolution, focusing on the significance of the plurality of the revolution which encompassed not only mathematical astronomy, but also conceptual changes in cosmology, physics, philosophy, and religion. |
| diagram of equinox and solstice: A Textbook of ICSE Geography Class IX (A.Y. 2023-24)Onward VEENA BHARGAVA, 2023-05-20 A TEXTBOOK OF ICSE GEOGRAPHY for Class IX has been especially written to comply with the norms set by the Council for the Indian School Certificate Examinations (ICSE) and it strictly conforms to the latest syllabus prescribed by the Council for the year. I have made sincere efforts giving explanations, instructions and guidelines so as to inculcate interest, understanding and self-confidence in the pupils and help them to prepare better for the examination. Salient features of this book are : • A student friendly and examination oriented book with scientific, logical and practical approach. The book has been updated with the latest information, till date. • All the chapters are given in simple language, using appropriate diagrams, coloured pictures and illustrations. • A complete set of solved maps in colour is given for ready reference. It is a compulsory question in Board Examination carrying 10 marks. It will serve as a helpline for the students. • A glossary of technical terms has been given at the end of each chapter for a better understanding of the subject. • A step-by-step guideline is given for the internal assessment, an integral part of the syllabus, i.e., three records (10 marks) and a sample project carrying 10 marks. • Teacher's Resource Book containing answers of the exercises given at the back of each lesson is available. • Sample Question Paper (solved) is given. • As per the latest addition in the Board Examinations for ICSE, MCQs (Multiple choice questions) have been incorporated for exercise in each chapter. It is my belief that this comprehensive book will provide an ideal platform for the interaction between the teachers and students. Any constructive suggestions for further improvement of the book are welcome. -Author |
| diagram of equinox and solstice: Bird Migration Thomas Alerstam, 1993-03-25 Bird migration is one of the most astonishing feats in the natural world. Millions of birds migrate, often over very large distances, to benefit from seasonal resource surpluses and to avoid predators and competitors. The aim of this study is to survey the phenomena. |
| diagram of equinox and solstice: On Time Kenneth Mondschein, 2020-09-15 An approachable, accessible history of timekeeping and the impact of the increasing precision and accuracy of time on humanity. Western culture has been obsessed with regulating society by the precise, accurate measurement of time since the Middle Ages. In On Time, Ken Mondschein explores the paired development of concepts and technologies of timekeeping with human thought. Without clocks, he argues, the modern world as we know it would not exist. From the astronomical timekeeping of the ancient world to the tower clocks of the Middle Ages to the seagoing chronometer, the quartz watch, and the atomic clock, greater precision and accuracy have had profound effects on human society—which, in turn, has driven the quest for further precision and accuracy. This quest toward automation—which gave rise to the Gregorian calendar, the factory clock, and even the near-disastrous Y2K bug—has led to profound social repercussions and driven the creation of the modern scientific mindset. Surveying the evolution of the clock from prehistory to the twenty-first century, Mondschein explains how both the technology and the philosophy behind Western timekeeping regimes came to take over the entire world. On Time is a story of thinkers, philosophers, and scientists, and of the thousand decisions that continue to shape our daily lives. |
| diagram of equinox and solstice: Practical Solar Tracking Automatic Solar Tracking Sun Tracking Автоматическое удержание Солнечная слежения ВС 太陽能自動跟踪太陽跟踪 Gerro Prinsloo, Robert Dobson, 2015-11-01 This book details Practical Solar Energy Harvesting, Automatic Solar-Tracking, Sun-Tracking-Systems, Solar-Trackers and Sun Tracker Systems using motorized automatic positioning concepts and control principles. An intelligent automatic solar tracker is a device that orients a payload toward the sun. Such programmable computer based solar tracking device includes principles of solar tracking, solar tracking systems, as well as microcontroller, microprocessor and/or PC based solar tracking control to orientate solar reflectors, solar lenses, photovoltaic panels or other optical configurations towards the sun. Motorized space frames and kinematic systems ensure motion dynamics and employ drive technology and gearing principles to steer optical configurations such as mangin, parabolic, conic, or cassegrain solar energy collectors to face the sun and follow the sun movement contour continuously. In general, the book may benefit solar research and solar energy applications in countries such as Africa, Mediterranean, Italy, Spain, Greece, USA, Mexico, South America, Brazilia, Argentina, Chili, India, Malaysia, Middle East, UAE, Russia, Japan and China. This book on practical automatic Solar-Tracking Sun-Tracking is in .PDF format and can easily be converted to the .EPUB .MOBI .AZW .ePub .FB2 .LIT .LRF .MOBI .PDB .PDF .TCR formats for smartphones and Kindle by using the ebook.online-convert.com facility. The content of the book is also applicable to communication antenna satellite tracking and moon tracking algorithm source code for which links to free download links are provided. In harnessing power from the sun through a solar tracker or practical solar tracking system, renewable energy control automation systems require automatic solar tracking software and solar position algorithms to accomplish dynamic motion control with control automation architecture, circuit boards and hardware. On-axis sun tracking system such as the altitude-azimuth dual axis or multi-axis solar tracker systems use a sun tracking algorithm or ray tracing sensors or software to ensure the sun's passage through the sky is traced with high precision in automated solar tracker applications, right through summer solstice, solar equinox and winter solstice. A high precision sun position calculator or sun position algorithm is this an important step in the design and construction of an automatic solar tracking system. From sun tracing software perspective, the sonnet Tracing The Sun has a literal meaning. Within the context of sun track and trace, this book explains that the sun's daily path across the sky is directed by relatively simple principles, and if grasped/understood, then it is relatively easy to trace the sun with sun following software. Sun position computer software for tracing the sun are available as open source code, sources that is listed in this book. Ironically there was even a system called sun chaser, said to have been a solar positioner system known for chasing the sun throughout the day. Using solar equations in an electronic circuit for automatic solar tracking is quite simple, even if you are a novice, but mathematical solar equations are over complicated by academic experts and professors in text-books, journal articles and internet websites. In terms of solar hobbies, scholars, students and Hobbyist's looking at solar tracking electronics or PC programs for solar tracking are usually overcome by the sheer volume of scientific material and internet resources, which leaves many developers in frustration when search for simple experimental solar tracking source-code for their on-axis sun-tracking systems. This booklet will simplify the search for the mystical sun tracking formulas for your sun tracker innovation and help you develop your own autonomous solar tracking controller. By directing the solar collector directly into the sun, a solar harvesting means or device can harness sunlight or thermal heat. This is achieved with the help of sun angle formulas, solar angle formulas or solar tracking procedures for the calculation of sun's position in the sky. Automatic sun tracking system software includes algorithms for solar altitude azimuth angle calculations required in following the sun across the sky. In using the longitude, latitude GPS coordinates of the solar tracker location, these sun tracking software tools supports precision solar tracking by determining the solar altitude-azimuth coordinates for the sun trajectory in altitude-azimuth tracking at the tracker location, using certain sun angle formulas in sun vector calculations. Instead of follow the sun software, a sun tracking sensor such as a sun sensor or webcam or video camera with vision based sun following image processing software can also be used to determine the position of the sun optically. Such optical feedback devices are often used in solar panel tracking systems and dish tracking systems. Dynamic sun tracing is also used in solar surveying, DNI analyser and sun surveying systems that build solar infographics maps with solar radiance, irradiance and DNI models for GIS (geographical information system). In this way geospatial methods on solar/environment interaction makes use use of geospatial technologies (GIS, Remote Sensing, and Cartography). Climatic data and weather station or weather center data, as well as queries from sky servers and solar resource database systems (i.e. on DB2, Sybase, Oracle, SQL, MySQL) may also be associated with solar GIS maps. In such solar resource modelling systems, a pyranometer or solarimeter is normally used in addition to measure direct and indirect, scattered, dispersed, reflective radiation for a particular geographical location. Sunlight analysis is important in flash photography where photographic lighting are important for photographers. GIS systems are used by architects who add sun shadow applets to study architectural shading or sun shadow analysis, solar flux calculations, optical modelling or to perform weather modelling. Such systems often employ a computer operated telescope type mechanism with ray tracing program software as a solar navigator or sun tracer that determines the solar position and intensity. The purpose of this booklet is to assist developers to track and trace suitable source-code and solar tracking algorithms for their application, whether a hobbyist, scientist, technician or engineer. Many open-source sun following and tracking algorithms and source-code for solar tracking programs and modules are freely available to download on the internet today. Certain proprietary solar tracker kits and solar tracking controllers include a software development kit SDK for its application programming interface API attributes (Pebble). Widget libraries, widget toolkits, GUI toolkit and UX libraries with graphical control elements are also available to construct the graphical user interface (GUI) for your solar tracking or solar power monitoring program. The solar library used by solar position calculators, solar simulation software and solar contour calculators include machine program code for the solar hardware controller which are software programmed into Micro-controllers, Programmable Logic Controllers PLC, programmable gate arrays, Arduino processor or PIC processor. PC based solar tracking is also high in demand using C++, Visual Basic VB, as well as MS Windows, Linux and Apple Mac based operating systems for sun path tables on Matlab, Excel. Some books and internet webpages use other terms, such as: sun angle calculator, sun position calculator or solar angle calculator. As said, such software code calculate the solar azimuth angle, solar altitude angle, solar elevation angle or the solar Zenith angle (Zenith solar angle is simply referenced from vertical plane, the mirror of the elevation angle measured from the horizontal or ground plane level). Similar software code is also used in solar calculator apps or the solar power calculator apps for IOS and Android smartphone devices. Most of these smartphone solar mobile apps show the sun path and sun-angles for any location and date over a 24 hour period. Some smartphones include augmented reality features in which you can physically see and look at the solar path through your cell phone camera or mobile phone camera at your phone's specific GPS location. In the computer programming and digital signal processing (DSP) environment, (free/open source) program code are available for VB, .Net, Delphi, Python, C, C+, C++, PHP, Swift, ADM, F, Flash, Basic, QBasic, GBasic, KBasic, SIMPL language, Squirrel, Solaris, Assembly language on operating systems such as MS Windows, Apple Mac, DOS or Linux OS. Software algorithms predicting position of the sun in the sky are commonly available as graphical programming platforms such as Matlab (Mathworks), Simulink models, Java applets, TRNSYS simulations, Scada system apps, Labview module, Beckhoff TwinCAT (Visual Studio), Siemens SPA, mobile and iphone apps, Android or iOS tablet apps, and so forth. At the same time, PLC software code for a range of sun tracking automation technology can follow the profile of sun in sky for Siemens, HP, Panasonic, ABB, Allan Bradley, OMRON, SEW, Festo, Beckhoff, Rockwell, Schneider, Endress Hauser, Fudji electric. Honeywell, Fuchs, Yokonawa, or Muthibishi platforms. Sun path projection software are also available for a range of modular IPC embedded PC motherboards, Industrial PC, PLC (Programmable Logic Controller) and PAC (Programmable Automation Controller) such as the Siemens S7-1200 or Siemens Logo, Beckhoff IPC or CX series, OMRON PLC, Ercam PLC, AC500plc ABB, National Instruments NI PXI or NI cRIO, PIC processor, Intel 8051/8085, IBM (Cell, Power, Brain or Truenorth series), FPGA (Xilinx Altera Nios), Intel, Xeon, Atmel megaAVR, MPU, Maple, Teensy, MSP, XMOS, Xbee, ARM, Raspberry Pi, Eagle, Arduino or Arduino AtMega microcontroller, with servo motor, stepper motor, direct current DC pulse width modulation PWM (current driver) or alternating current AC SPS or IPC variable frequency drives VFD motor drives (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) for electrical, mechatronic, pneumatic, or hydraulic solar tracking actuators. The above motion control and robot control systems include analogue or digital interfacing ports on the processors to allow for tracker angle orientation feedback control through one or a combination of angle sensor or angle encoder, shaft encoder, precision encoder, optical encoder, magnetic encoder, direction encoder, rotational encoder, chip encoder, tilt sensor, inclination sensor, or pitch sensor. Note that the tracker's elevation or zenith axis angle may measured using an altitude angle-, declination angle-, inclination angle-, pitch angle-, or vertical angle-, zenith angle- sensor or inclinometer. Similarly the tracker's azimuth axis angle be measured with a azimuth angle-, horizontal angle-, or roll angle- sensor. Chip integrated accelerometer magnetometer gyroscope type angle sensors can also be used to calculate displacement. Other options include the use of thermal imaging systems such as a Fluke thermal imager, or robotic or vision based solar tracker systems that employ face tracking, head tracking, hand tracking, eye tracking and car tracking principles in solar tracking. With unattended decentralised rural, island, isolated, or autonomous off-grid power installations, remote control, monitoring, data acquisition, digital datalogging and online measurement and verification equipment becomes crucial. It assists the operator with supervisory control to monitor the efficiency of remote renewable energy resources and systems and provide valuable web-based feedback in terms of CO2 and clean development mechanism (CDM) reporting. A power quality analyser for diagnostics through internet, WiFi and cellular mobile links is most valuable in frontline troubleshooting and predictive maintenance, where quick diagnostic analysis is required to detect and prevent power quality issues. Solar tracker applications cover a wide spectrum of solar applications and solar assisted application, including concentrated solar power generation, solar desalination, solar water purification, solar steam generation, solar electricity generation, solar industrial process heat, solar thermal heat storage, solar food dryers, solar water pumping, hydrogen production from methane or producing hydrogen and oxygen from water (HHO) through electrolysis. Many patented or non-patented solar apparatus include tracking in solar apparatus for solar electric generator, solar desalinator, solar steam engine, solar ice maker, solar water purifier, solar cooling, solar refrigeration, USB solar charger, solar phone charging, portable solar charging tracker, solar coffee brewing, solar cooking or solar dying means. Your project may be the next breakthrough or patent, but your invention is held back by frustration in search for the sun tracker you require for your solar powered appliance, solar generator, solar tracker robot, solar freezer, solar cooker, solar drier, solar pump, solar freezer, or solar dryer project. Whether your solar electronic circuit diagram include a simplified solar controller design in a solar electricity project, solar power kit, solar hobby kit, solar steam generator, solar hot water system, solar ice maker, solar desalinator, hobbyist solar panels, hobby robot, or if you are developing professional or hobby electronics for a solar utility or micro scale solar powerplant for your own solar farm or solar farming, this publication may help accelerate the development of your solar tracking innovation. Lately, solar polygeneration, solar trigeneration (solar triple generation), and solar quad generation (adding delivery of steam, liquid/gaseous fuel, or capture food-grade CO$_2$) systems have need for automatic solar tracking. These systems are known for significant efficiency increases in energy yield as a result of the integration and re-use of waste or residual heat and are suitable for compact packaged micro solar powerplants that could be manufactured and transported in kit-form and operate on a plug-and play basis. Typical hybrid solar power systems include compact or packaged solar micro combined heat and power (CHP or mCHP) or solar micro combined, cooling, heating and power (CCHP, CHPC, mCCHP, or mCHPC) systems used in distributed power generation. These systems are often combined in concentrated solar CSP and CPV smart microgrid configurations for off-grid rural, island or isolated microgrid, minigrid and distributed power renewable energy systems. Solar tracking algorithms are also used in modelling of trigeneration systems using Matlab Simulink (Modelica or TRNSYS) platform as well as in automation and control of renewable energy systems through intelligent parsing, multi-objective, adaptive learning control and control optimization strategies. Solar tracking algorithms also find application in developing solar models for country or location specific solar studies, for example in terms of measuring or analysis of the fluctuations of the solar radiation (i.e. direct and diffuse radiation) in a particular area. Solar DNI, solar irradiance and atmospheric information and models can thus be integrated into a solar map, solar atlas or geographical information systems (GIS). Such models allows for defining local parameters for specific regions that may be valuable in terms of the evaluation of different solar in photovoltaic of CSP systems on simulation and synthesis platforms such as Matlab and Simulink or in linear or multi-objective optimization algorithm platforms such as COMPOSE, EnergyPLAN or DER-CAM. A dual-axis solar tracker and single-axis solar tracker may use a sun tracker program or sun tracker algorithm to position a solar dish, solar panel array, heliostat array, PV panel, solar antenna or infrared solar nantenna. A self-tracking solar concentrator performs automatic solar tracking by computing the solar vector. Solar position algorithms (TwinCAT, SPA, or PSA Algorithms) use an astronomical algorithm to calculate the position of the sun. It uses astronomical software algorithms and equations for solar tracking in the calculation of sun's position in the sky for each location on the earth at any time of day. Like an optical solar telescope, the solar position algorithm pin-points the solar reflector at the sun and locks onto the sun's position to track the sun across the sky as the sun progresses throughout the day. Optical sensors such as photodiodes, light-dependant-resistors (LDR) or photoresistors are used as optical accuracy feedback devices. Lately we also included a section in the book (with links to microprocessor code) on how the PixArt Wii infrared camera in the Wii remote or Wiimote may be used in infrared solar tracking applications. In order to harvest free energy from the sun, some automatic solar positioning systems use an optical means to direct the solar tracking device. These solar tracking strategies use optical tracking techniques, such as a sun sensor means, to direct sun rays onto a silicon or CMOS substrate to determine the X and Y coordinates of the sun's position. In a solar mems sun-sensor device, incident sunlight enters the sun sensor through a small pin-hole in a mask plate where light is exposed to a silicon substrate. In a web-camera or camera image processing sun tracking and sun following means, object tracking software performs multi object tracking or moving object tracking methods. In an solar object tracking technique, image processing software performs mathematical processing to box the outline of the apparent solar disc or sun blob within the captured image frame, while sun-localization is performed with an edge detection algorithm to determine the solar vector coordinates. An automated positioning system help maximize the yields of solar power plants through solar tracking control to harness sun's energy. In such renewable energy systems, the solar panel positioning system uses a sun tracking techniques and a solar angle calculator in positioning PV panels in photovoltaic systems and concentrated photovoltaic CPV systems. Automatic on-axis solar tracking in a PV solar tracking system can be dual-axis sun tracking or single-axis sun solar tracking. It is known that a motorized positioning system in a photovoltaic panel tracker increase energy yield and ensures increased power output, even in a single axis solar tracking configuration. Other applications such as robotic solar tracker or robotic solar tracking system uses robotica with artificial intelligence in the control optimization of energy yield in solar harvesting through a robotic tracking system. Automatic positioning systems in solar tracking designs are also used in other free energy generators, such as concentrated solar thermal power CSP and dish Stirling systems. The sun tracking device in a solar collector in a solar concentrator or solar collector Such a performs on-axis solar tracking, a dual axis solar tracker assists to harness energy from the sun through an optical solar collector, which can be a parabolic mirror, parabolic reflector, Fresnel lens or mirror array/matrix. A parabolic dish or reflector is dynamically steered using a transmission system or solar tracking slew drive mean. In steering the dish to face the sun, the power dish actuator and actuation means in a parabolic dish system optically focusses the sun's energy on the focal point of a parabolic dish or solar concentrating means. A Stirling engine, solar heat pipe, thermosyphin, solar phase change material PCM receiver, or a fibre optic sunlight receiver means is located at the focal point of the solar concentrator. The dish Stirling engine configuration is referred to as a dish Stirling system or Stirling power generation system. Hybrid solar power systems (used in combination with biogas, biofuel, petrol, ethanol, diesel, natural gas or PNG) use a combination of power sources to harness and store solar energy in a storage medium. Any multitude of energy sources can be combined through the use of controllers and the energy stored in batteries, phase change material, thermal heat storage, and in cogeneration form converted to the required power using thermodynamic cycles (organic Rankin, Brayton cycle, micro turbine, Stirling) with an inverter and charge controller. В этой книге подробно Автоматическая Solar-Tracking, ВС-Tracking-Systems, Solar-трекеры и ВС Tracker Systems. Интеллектуальный автоматический солнечной слежения является устройством, которое ориентирует полезную нагрузку к солнцу. Такое программируемый компьютер на основе солнечной устройство слежения включает принципы солнечной слежения, солнечных систем слежения, а также микроконтроллер, микропроцессор и / или ПК на базе управления солнечной отслеживания ориентироваться солнечных отражателей, солнечные линзы, фотоэлектрические панели или другие оптические конфигурации к ВС Моторизованные космические кадры и кинематические системы обеспечения динамики движения и использовать приводной техники и готовится принципы, чтобы направить оптические конфигурации, такие как Манжен, параболических, конических или Кассегрена солнечных коллекторов энергии, чтобы лицом к солнцу и следовать за солнцем контур движения непрерывно. В обуздывать силу от солнца через солнечный трекер или практической солнечной системы слежения, системы возобновляемых контроля энергии автоматизации требуют автоматического солнечной отслеживания программного обеспечения и алгоритмов солнечные позиции для достижения динамического контроля движения с архитектуры автоматизации управления, печатных плат и аппаратных средств. На оси системы слежения ВС, таких как высота-азимут двойной оси или многоосевые солнечные системы трекер использовать алгоритм отслеживания солнце или трассировки лучей датчиков или программное обеспечение, чтобы обеспечить прохождение солнца по небу прослеживается с высокой точностью в автоматизированных приложений Солнечная Tracker , прямо через летнего солнцестояния, солнечного равноденствия и зимнего солнцестояния.Высокая точность позиции ВС калькулятор или положение солнца алгоритм это важный шаг в проектировании и строительстве автоматической системой солнечной слежения. 這本書詳細介紹了全自動太陽能跟踪，太陽跟踪系統的出現，太陽能跟踪器和太陽跟踪系統。智能全自動太陽能跟踪器是定向向著太陽的有效載荷設備。這種可編程計算機的太陽能跟踪裝置，包括太陽跟踪，太陽能跟踪系統，以及微控制器，微處理器和/或基於PC機的太陽跟踪控制，以定向太陽能反射器，太陽透鏡，光電板或其他光學配置朝向太陽的原理。機動空間框架和運動系統，確保運動動力學和採用的驅動技術和傳動原理引導光學配置，如曼金，拋物線，圓錐曲線，或卡塞格林式太陽能集熱器面向太陽，不斷跟隨太陽運動的輪廓。 從陽光透過太陽能跟踪器或實用的太陽能跟踪系統利用電力，可再生能源控制的自動化系統需要自動太陽跟踪軟件和太陽位置算法來實現控制與自動化架構，電路板和硬件的動態運動控制。上軸太陽跟踪系統，如高度，方位角雙軸或多軸太陽跟踪系統使用太陽跟踪算法或光線追踪傳感器或軟件，以確保通過天空中太陽的通道被跟踪的高精度的自動太陽跟踪器的應用，通過正確的夏至，春分太陽和冬至。一種高精度太陽位置計算器或太陽位置算法是這樣的自動太陽能跟踪系統的設計和施工中的重要一步。 |
Flowchart Maker & Online Diagram Software
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Flowchart Maker & Online Diagram Software
draw.io is free online diagram software. You can use it as a flowchart maker, network diagram software, to create UML online, as an ER diagram tool, to design database schema, to build …
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