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  free astronomy books online: Astronomy Andrew Fraknoi, David Morrison, Sidney C. Wolff, 2017-12-19 Astronomy is written in clear non-technical language, with the occasional touch of humor and a wide range of clarifying illustrations. It has many analogies drawn from everyday life to help non-science majors appreciate, on their own terms, what our modern exploration of the universe is revealing. The book can be used for either aone-semester or two-semester introductory course (bear in mind, you can customize your version and include only those chapters or sections you will be teaching.) It is made available free of charge in electronic form (and low cost in printed form) to students around the world. If you have ever thrown up your hands in despair over the spiraling cost of astronomy textbooks, you owe your students a good look at this one. Coverage and Scope Astronomy was written, updated, and reviewed by a broad range of astronomers and astronomy educators in a strong community effort. It is designed to meet scope and sequence requirements of introductory astronomy courses nationwide. Chapter 1: Science and the Universe: A Brief Tour Chapter 2: Observing the Sky: The Birth of Astronomy Chapter 3: Orbits and Gravity Chapter 4: Earth, Moon, and Sky Chapter 5: Radiation and Spectra Chapter 6: Astronomical Instruments Chapter 7: Other Worlds: An Introduction to the Solar System Chapter 8: Earth as a Planet Chapter 9: Cratered Worlds Chapter 10: Earthlike Planets: Venus and Mars Chapter 11: The Giant Planets Chapter 12: Rings, Moons, and Pluto Chapter 13: Comets and Asteroids: Debris of the Solar System Chapter 14: Cosmic Samples and the Origin of the Solar System Chapter 15: The Sun: A Garden-Variety Star Chapter 16: The Sun: A Nuclear Powerhouse Chapter 17: Analyzing Starlight Chapter 18: The Stars: A Celestial Census Chapter 19: Celestial Distances Chapter 20: Between the Stars: Gas and Dust in Space Chapter 21: The Birth of Stars and the Discovery of Planets outside the Solar System Chapter 22: Stars from Adolescence to Old Age Chapter 23: The Death of Stars Chapter 24: Black Holes and Curved Spacetime Chapter 25: The Milky Way Galaxy Chapter 26: Galaxies Chapter 27: Active Galaxies, Quasars, and Supermassive Black Holes Chapter 28: The Evolution and Distribution of Galaxies Chapter 29: The Big Bang Chapter 30: Life in the Universe Appendix A: How to Study for Your Introductory Astronomy Course Appendix B: Astronomy Websites, Pictures, and Apps Appendix C: Scientific Notation Appendix D: Units Used in Science Appendix E: Some Useful Constants for Astronomy Appendix F: Physical and Orbital Data for the Planets Appendix G: Selected Moons of the Planets Appendix H: Upcoming Total Eclipses Appendix I: The Nearest Stars, Brown Dwarfs, and White Dwarfs Appendix J: The Brightest Twenty Stars Appendix K: The Chemical Elements Appendix L: The Constellations Appendix M: Star Charts and Sky Event Resources
  free astronomy books online: Foundations of Astrophysics Barbara Ryden, Bradley M. Peterson, 2020-08-27 A contemporary and complete introduction to astrophysics for astronomy and physics majors taking a two-semester survey course.
  free astronomy books online: The Astronomy Book DK, 2021-02-02 Since the dawn of humankind, people have looked upward to the heavens and tried to understand them. This encyclopedia takes you on an expedition through time and space to discover our place in the universe. We invite you to take a journey through the wonders of the universe. Explore the cosmos, from planets to black holes, the Big Bang, and everything in-between! Get ready to discover the story of the universe one page at a time! This educational book for young adults will launch you on a wild trip through the cosmos and the incredible discoveries throughout history. Filled to the brim with beautifully illustrated flowcharts, graphics, and jargon-free language, The Astronomy Book breaks down hard-to-grasp concepts to guide you in understanding almost 100 big astronomical ideas. Big Ideas How do we measure the universe? Where is the event horizon? What is dark matter? Now you can find out all the answers to these questions and so much more in this inquisitive book about our universe! Using incredibly clever visual learning devices like step-by-step diagrams, you'll learn more about captivating topics from the Copernican Revolution. Dive into the mind-boggling theories of recent science in a user-friendly format that makes the information easy to follow. Explore the biographies, theories, and discoveries of key astronomers through the ages such as Ptolemy, Galileo, Newton, Hubble, and Hawking. To infinity and beyond! Journey through space and time with us: - From Myth to Science 600 BCE - 1550 CE - The Telescope Revolution 1550 - 1750 - Uranus to Neptune 1750 - 1850 - The Rise of Astrophysics 1850 - 1915 - Atom, Stars, And Galaxies 1915 - 1950 - New Windows on The Universe 1950 - 1917 - The Triumph of Technology 1975 - Present The Series Simply Explained With over 7 million copies sold worldwide to date, The Astronomy Book is part of the award-winning Big Ideas Simply Explained series from DK Books. It uses innovative graphics along with engaging writing to make complex subjects easier to understand. Shortlisted: A Young Adult Library Services Association Outstanding Books for the College Bound and Lifelong Learners list selection A Mom's Choice Awards® Honoring Excellence Gold Seal of Approval for Young Adult Books A Parents' Choice Gold Award winner
  free astronomy books online: An Introduction to Radio Astronomy Bernard F. Burke, Francis Graham-Smith, 2002-04-04 Radio astronomy uses unique observational techniques and offers the only way to investigate many phenomena in the Universe. This book, by two founders of the field, presents both a clear introduction to radio telescopes and techniques, and a broad overview of the radio universe. The material in this new edition has been expanded and updated, reflecting the developments in the field over the last decade. New material reflects the increasing use of aperture synthesis and Very Long Baseline Interferometry, and the further exploitation of molecular spectral lines. A new chapter is devoted to the fundamentals of radiation and propagation theory. The second half of the book constitutes a review of radio observations of our Milky Way galaxy. Wide-ranging and clearly written, this book provides a thorough and up-to-date introduction to the subject for graduate students, and an invaluable overview for researchers turning to radio astronomy for the first time.
  free astronomy books online: Exploring Creation with Astronomy Jeannie K. Fulbright, 2004 This wonderful book uses the classical and Charlotte Mason methodology to give elementary school students an introduction to our solar system and the universe that contains it. Narration and notebooking are used to encourage critical thinking, logical ordering, retention, and record keeping. Each lesson in the book is organized with a narrative, some notebook work, an activity, and a project. The activities and projects use easy-to-find household items and truly make the lessons come alive! They include making a solar eclipse, making craters like those found on Mercury, simulating the use of radar to determine hidden landscape, keeping track of the phases of the moon, making a telescope, making fog, and making an astrometer to measure the brightness of a star. Although designed to be read by the parent to elementary students of various grade levels, it is possible for students with a 4th-grade reading level to read this book on their own. Grades K-6.
  free astronomy books online: Astronomy Duncan John, 2010
  free astronomy books online: There's No Place Like Space! All About Our Solar System Tish Rabe, 2019-06-18 Laugh and learn with fun facts about the sun, the moon, the planets, constellations, astronauts, and more—all told in Dr. Seuss’s beloved rhyming style and starring The Cat in the Hat! “The universe is a mysterious place. We are only just learning what happens in space.” The Cat in the Hat’s Learning Library series combines beloved characters, engaging rhymes, and Seussian illustrations to introduce children to non-fiction topics from the real world! On this adventure into outer space, readers will discover: • what makes each planet in our solar system unique • how a million Earths could fit inside the sun • how astronauts have driven a special car all over the moon • and much more! Perfect for story time and for the youngest readers, There’s No Place Like Space: All About Our Solar System also includes an index, glossary, and suggestions for further learning. Look for more books in the Cat in the Hat’s Learning Library series! Cows Can Moo! Can You? All About Farms Hark! A Shark! All About Sharks If I Ran the Dog Show: All About Dogs Oh Say Can You Say Di-no-saur? All About Dinosaurs On Beyond Bugs! All About Insects One Vote Two Votes I Vote You Vote Who Hatches the Egg? All About Eggs Why Oh Why Are Deserts Dry? All About Deserts Wish for a Fish: All About Sea Creatures
  free astronomy books online: Essential Radio Astronomy James J. Condon, Scott M. Ransom, 2016-04-05 The ideal text for a one-semester course in radio astronomy Essential Radio Astronomy is the only textbook on the subject specifically designed for a one-semester introductory course for advanced undergraduates or graduate students in astronomy and astrophysics. It starts from first principles in order to fill gaps in students' backgrounds, make teaching easier for professors who are not expert radio astronomers, and provide a useful reference to the essential equations used by practitioners. This unique textbook reflects the fact that students of multiwavelength astronomy typically can afford to spend only one semester studying the observational techniques particular to each wavelength band. Essential Radio Astronomy presents only the most crucial concepts—succinctly and accessibly. It covers the general principles behind radio telescopes, receivers, and digital backends without getting bogged down in engineering details. Emphasizing the physical processes in radio sources, the book's approach is shaped by the view that radio astrophysics owes more to thermodynamics than electromagnetism. Proven in the classroom and generously illustrated throughout, Essential Radio Astronomy is an invaluable resource for students and researchers alike. The only textbook specifically designed for a one-semester course in radio astronomy Starts from first principles Makes teaching easier for astronomy professors who are not expert radio astronomers Emphasizes the physical processes in radio sources Covers the principles behind radio telescopes and receivers Provides the essential equations and fundamental constants used by practitioners Supplementary website includes lecture notes, problem sets, exams, and links to interactive demonstrations An online illustration package is available to professors
  free astronomy books online: The Physical Universe Frank Shu, 1982 This is a truly astonishing book, invaluable for anyone with an interest in astronomy. Physics Bulletin Just the thing for a first year university science course. Nature This is a beautiful book in both concept and execution. Sky & Telescope
  free astronomy books online: Astronomy For Beginners Jeff Becan, 2008-01-08 Astronomy For Beginners is a friendly and accessible guide to our universe, our galaxy, our solar system and the planet we call home. Each year as we cruise through space on this tiny blue-green wonder, a number of amazing and remarkable events occur. For example, like clockwork, we’ll run head-on into asteroid and cometary debris that spreads shooting stars across our skies. On occasion, we’ll get to watch the disk of the Moon passing the Sun, casting its shadow on the face of the Earth, and sometimes we’ll get to watch our own shadow as it glides across the face of the Moon. The Sun’s path will constantly change across the daytime sky, as will the stars and constellations at night. During this time, we’ll also get to watch the other majestic planets in our solar system wander the skies, as they too circle the Sun in this elaborate celestial dance. Astronomy For Beginners will explain this elaborate celestial dance – the patterns of the heavens, the equinoxes and the solstices, the major meteor showers, and the solar and lunar eclipses. In addition, Astronomy For Beginners will also take you on a guided tour of the solar system and beyond. We’ll discover how the way we measure time itself is intimately related to celestial phenomena, and we’ll furthermore explore our historical and continuing mission to understand our place in this marvelous universe in which we find ourselves. Oh yeah, one more thing: Astronomy For Beginners will not only help you become an expert in space and time – but it also promises to be a pretty fun ride!
  free astronomy books online: Great Astronomers Robert Stawell Ball, 1895
  free astronomy books online: Curiosities of the Sky Garrett Putman Serviss, 2022-07-15 Excerpt: The Galaxy, or Milky Way, surrounds the borders of our island in space like a stellar garland, and when openings appear in it they are, by contrast, far more impressive than the general darkness of the interstellar expanse seen in other directions. Yet even that expanse is not everywhere equally dark, for it contains gloomy deeps discernible with careful watching. Here, too, contrast plays an important part, though less striking than within the galactic region. Some of Sir William Herschel's observations appear to indicate an association between these tenebrious spots and neighbouring star clouds and nebulae. It is an illuminating bit of astronomical history that when he was sweeping the then virgin heavens with his great telescopes he was accustomed to say to his sister who, note-book in hand, waited at his side to take down his words, fresh with the inspiration of discovery: ``Prepare to write; the nebulae are coming; here space is vacant.
  free astronomy books online: There’s a Hole in my Galaxy Ananya Dasgupta, Three friends blast off from Earth in a rocket to explore the Solar System. Suddenly, they find themselves being pulled by a black hole. Do they manage to escape? Find out what happens on this space odyssey. Story Attribution: ‘There’s a Hole in my Galaxy’ is written by Ananya Dasgupta. © Pratham Books, 2018. Some rights reserved. Released under CC BY 4.0 license. (http://creativecommons. org/licenses/by/4.0/) Other Credits: ‘There’s a Hole in my Galaxy’ has been published on StoryWeaver by Pratham Books. The development of this book has been supported by CISCO. www.prathambooks.org
  free astronomy books online: Handbook of Practical Astronomy Günter D. Roth, 2009-06-18 The Compendium of Practical Astronomy is unique. The practical astronomer, whether student, novice or accomplished amateur, will find this handbook the most comprehensive, up-to-date and detailed single guide to the subject available. It is based on Roth’s celebrated German language handbook for amateur astronomers, which first appeared over 40 years ago.
  free astronomy books online: Tools of Radio Astronomy K. Rohlfs, T. L. Wilson, 2004 This substantially rewritten and expanded fourth edition outlines the most up-to-date methods and tools of radio astronomy. Tools of Radio Astronomy gives a unified treatment of the entire field of radio astronomy, from centimeter to sub-millimeter wavelengths and using single telescopes as well as interferometers. The basic physical principles are described and a complete outline of the instrumentation, observational techniques, and methods of measurement and analysis are given. The goal of this standard reference and text is to prepare readers to carry out observations and relate the data to physical processes in interstellar space. In this fourth edition, the chapter on interferometry and aperture synthesis has been thoroughly revised in the light of most recent developments, as has been the chapter on molecules in interstellar space, and material on receiver technology. From reviews of previous editions: People use this book so much because it describes what one needs in order actually to do radio astronomy ... and it will remain relevant for a long time...This book is an excellent graduate level text - the best available by far. It is also the best reference book for the practising astronomer who wants to do radio astronomy properly, to interpret the jargon or to understand some of the details of current literature. Physics Today This is the one book you should buy if you want to become a radio astronomer. (...) I have used the first and second editions as a postgraduate textbook for many years, and will now recommend the third edition to my students. The Observatory.
  free astronomy books online: Textbook on Spherical Astronomy W. M. Smart, 1977-07-07 This well-established textbook gives a general but comprehensive introduction to positional astronomy. Originally based on the author's lecture courses at Cambridge University, it is intended primarily for undergraduates, but, due to its comprehensive nature, it is a very useful reference text for research workers in many branches of astronomy and space physics. The author considers the night sky as the celestial sphere and powerfully exploits the methods of spherical geometry. Most problems in which the precise determination of a heavenly body's position in the sky is important are considered in theoretical detail, and the necessary formulae are derived to a precision that is sufficient for all but the most specialist purposes. The present revision has ensured that the terminology and treatment correspond precisely to current astronomical practice. A guiding principle has been to re-establish compatibility with the Astronomical Ephemeris and, to a lesser extent, with the fuller explanations of the Explanatory Supplement to the Astronomical Ephemeris and the American Ephemeris and Nautical Almanac. Fairly frequent comments added to the text indicate the sometimes modified relevance of the subject matter to modern astronomy. A number of additional exercises help to illustrate the new material.
  free astronomy books online: Astronomy Activity Book for Kids Aurora Lipper, 2021-09-14 Explore planets, stars, and constellations with this “out of this world” educational activity book for kids ages 5−7 Space is awesome, and we can explore a lot of it from right here on Earth using our eyes, binoculars, and telescopes. In this interactive activity book, kids ages 5−7 get to be astronomers! Former NASA scientist Aurora Lipper leads an exciting journey through space, beginning with a tour of the planets and moons in our solar system. Next, kids visit the constellations and then zoom through the far reaches of the Milky Way galaxy. Along the way, they’ll find amazing facts about the starry skies and get to color and draw, connect dots, find hidden objects, and have fun with word puzzles while improving math and reading skills. Astronomy Activity Book for Kids features: • 90+ educational activities: On-page games and cool facts about space allow for fun, independent learning • Simple stargazing projects: Learn how to find the Big Dipper, view meteor showers, and more with just the eyes, binoculars, or a small telescope • Easy and exciting to read: Beautiful space illustrations and simple explanations written for early readers
  free astronomy books online: 100 Things to See in the Night Sky, Expanded Edition Dean Regas, 2020-06-16 Discover the amazing wonders of the night sky with this expanded edition to 100 Things to See in the Night Sky, perfect for every amateur stargazer and armchair astronomer! Keep your feet on the ground and experience the night sky to the fullest by exploring planets, satellites, and constellations with this all-inclusive reference guide to space. 100 Things to See in the Night Sky, Expanded Edition is full of information on the many amazing things you can see with a telescope, or just your naked eye! From shooting stars to constellations and planets to satellites, this book gives you a clear picture of what you can see on any given night. Learn about the celestial bodies that have captured people’s imaginations for centuries, with specific facts alongside traditional myths and beautifully illustrated photographs and star charts that will help you know where to look for the best view. With this illuminating guide, you’ll enjoy hours of stargazing, whether you’re travelling, camping, sitting in your back yard, or simply flipping through the beautiful images in this book.
  free astronomy books online: 21st Century Astronomy Laura Kay, George Blumenthal, Stacy Palen, 2016-06-01 A textbook that facilitates learning by doing.
  free astronomy books online: Introduction to Astronomy and Cosmology Ian Morison, 2008-12-03 Introduction to Astronomy & Cosmology is a modern undergraduate textbook, combining both the theory behind astronomy with the very latest developments. Written for science students, this book takes a carefully developed scientific approach to this dynamic subject. Every major concept is accompanied by a worked example with end of chapter problems to improve understanding Includes coverage of the very latest developments such as double pulsars and the dark galaxy. Beautifully illustrated in full colour throughout Supplementary web site with many additional full colour images, content, and latest developments.
  free astronomy books online: Gravitational-Wave Physics and Astronomy Jolien D. E. Creighton, Warren G. Anderson, 2012-01-09 This most up-to-date, one-stop reference combines coverage of both theory and observational techniques, with introductory sections to bring all readers up to the same level. Written by outstanding researchers directly involved with the scientific program of the Laser Interferometer Gravitational-Wave Observatory (LIGO), the book begins with a brief review of general relativity before going on to describe the physics of gravitational waves and the astrophysical sources of gravitational radiation. Further sections cover gravitational wave detectors, data analysis, and the outlook of gravitational wave astronomy and astrophysics.
  free astronomy books online: The Universe Revealed Chris Impey, William K. Hartmann, 2000 Chris Impey and Bill Hartmann, both well-known researchers and authors, bring astronomy to life using captivating stories of scientists' lives, the excitement of their astronomical discoveries and how their discoveries unveil the inner workings of science. The authors use a planets-first approach in THE UNIVERSE REVEALED as they guide students through the general process of discovery and understanding. The text covers all the basic concepts and ideas in astronomy using three consistent themes that are integrated and reinforced throughout the book. It will appeal instructors who want their students to understand physical concepts and processes of astronomy, as well as to grasp the arguments and methods that are common to all of science. This book includes free THE SKY? STUDENT EDITION and VOYAGE THROUGH THE SOLAR SYSTEM CD-ROMs free with each new text, making it the largest media package available in astronomy.
  free astronomy books online: Astrophysics in a Nutshell Dan Maoz, 2016-02-23 The ideal one-semester astrophysics introduction for science undergraduates—now expanded and fully updated Winner of the American Astronomical Society's Chambliss Award, Astrophysics in a Nutshell has become the text of choice in astrophysics courses for science majors at top universities in North America and beyond. In this expanded and fully updated second edition, the book gets even better, with a new chapter on extrasolar planets; a greatly expanded chapter on the interstellar medium; fully updated facts and figures on all subjects, from the observed properties of white dwarfs to the latest results from precision cosmology; and additional instructive problem sets. Throughout, the text features the same focused, concise style and emphasis on physics intuition that have made the book a favorite of students and teachers. Written by Dan Maoz, a leading active researcher, and designed for advanced undergraduate science majors, Astrophysics in a Nutshell is a brief but thorough introduction to the observational data and theoretical concepts underlying modern astronomy. Generously illustrated, it covers the essentials of modern astrophysics, emphasizing the common physical principles that govern astronomical phenomena, and the interplay between theory and observation, while also introducing subjects at the forefront of modern research, including black holes, dark matter, dark energy, and gravitational lensing. In addition to serving as a course textbook, Astrophysics in a Nutshell is an ideal review for a qualifying exam and a handy reference for teachers and researchers. The most concise and current astrophysics textbook for science majors—now expanded and fully updated with the latest research results Contains a broad and well-balanced selection of traditional and current topics Uses simple, short, and clear derivations of physical results Trains students in the essential skills of order-of-magnitude analysis Features a new chapter on extrasolar planets, including discovery techniques Includes new and expanded sections and problems on the physics of shocks, supernova remnants, cosmic-ray acceleration, white dwarf properties, baryon acoustic oscillations, and more Contains instructive problem sets at the end of each chapter Solutions manual (available only to professors)
  free astronomy books online: Kepler Walter W. Bryant, 2025-01-07 Kepler by Walter W. Bryant is a captivating exploration of the life and scientific contributions of Johannes Kepler, the renowned 17th-century astronomer. This biography delves into Kepler's revolutionary theories that transformed our understanding of the cosmos, particularly his laws of planetary motion that laid the groundwork for modern astronomy. The narrative vividly portrays Kepler's struggles and triumphs, from his early life in Germany to his work alongside notable figures such as Tycho Brahe. Bryant emphasizes not only Kepler's scientific achievements but also the personal and philosophical challenges he faced, illustrating the intricate relationship between faith and science during a time of profound change. Through meticulous research and engaging prose, Kepler highlights the impact of Kepler's work on future generations of scientists, showcasing how his ideas paved the way for the advancements of figures like Isaac Newton. This biography is essential for anyone interested in the history of science, as it paints a comprehensive picture of a man who dared to question the universe's mysteries. Readers are drawn to Kepler for its insightful portrayal of a pivotal figure in the scientific revolution. Bryant's accessible writing makes complex ideas understandable, making this book a valuable addition to the library of anyone curious about astronomy, history, or the interplay of science and religion.
  free astronomy books online: THROUGH THE TELESCOPE James 1866-1931 Baikie, 2016-08-29 This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
  free astronomy books online: Astronomy For Dummies Stephen P. Maran, 1999 For as long as there have been people, men and women have looked up into the night sky and wondered about the nature of the cosmos. Without the benefit of science to provide answers, they relied on myth and superstition to help them make sense of what they saw. Lucky for us, we live at a time when regular folks, equipped with nothing more than their naked eyes, can look up into the night sky and gain admittance to infinite wonders. If you know what to look for, you can make out planets, stars, galaxies , and even galactic clusters comprising hundreds of millions of stars and spanning millions of light-years. Astronomy For Dummies tells you what you need to know to make sense of the world above us. Written by one of the most well-known astronomers in the world, this fun, fact-filled ,and accessible guide fills you in on the basic principles of astronomy and tells you how to: Identify planets and stars Explore our solar system, the Milky Way, and beyond Understand the Big Bang, quasars, antimatter, black holes, and more Join the Search for Extraterrestrial Intelligence (SETI) Get the most out of planetarium visits Make more sense out of space missions From asteroids to black holes, quasars to white dwarfs, Astronomy For Dummies takes you on a grand tour of the universe. Featuring star maps, charts, gorgeous full-color photographs, and easy-to-follow explanations it gives you a leg up on the basic science of the universe. Topics covered include: Observing the night sky, with and without optics Selecting binoculars and telescopes and positioning yourself for the best view Meteors, comets, and man-made moons Touring our solar system and becoming familiar with the planets, asteroids, and near Earth objects Our Sun, stars, galaxies, black holes and quasars SETI and planets revolving around other suns Dark matter and antimatter The Big Bang and the evolutions of the universe You might think the cosmos is a vast and mysterious place, but Astronomy For Dummies will make it seem as friendly and familiar as your own backyard.
  free astronomy books online: INTRO TO ASTRONOMY Forest Ray 1872-1952 Moulton, 2016-08-29 This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
  free astronomy books online: The Birth of Modern Astronomy Harm J. Habing, 2019-04-02 This richly illustrated book discusses the ways in which astronomy expanded after 1945 from a modest discipline to a robust and modern science. It begins with an introduction to the state of astronomy in 1945 before recounting how in the following years, initial observations were made in hitherto unexplored ranges of wavelengths, such as X-radiation, infrared radiation and radio waves. These led to the serendipitous discovery of more than a dozen new phenomena, including quasars and neutron stars, that each triggered a new area of research. The book goes on to discuss how after 1985, the further, systematic exploration of the earlier discoveries led to long-term planning and the construction of new, large telescopes on Earth and in Space. Key scientific highlights described in the text are the detection of exoplanets (1995), the unexpected discovery of the accelerated expansion of the Universe (1999), a generally accepted model for the large-scale properties of the Universe (2003) and the ΛCDM theory (2005) that explains how the galaxies and stars of the present Universe were formed from minute irregularities in the (almost) homogenous gas that filled the early Universe. All these major scientific achievements came at a price, namely the need to introduce two new phenomena that are as yet unexplained by physics: inflation and dark energy. Probably the deepest unsolved question has to be: Why did all of this start with a Big Bang?
  free astronomy books online: Frontiers of Astronomy Sir Fred Hoyle, Sir, 2015-08-12 This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
  free astronomy books online: The Backyard Astronomer's Guide Terence Dickinson, Alan Dyer, 2021-09-15 The touchstone for contemporary stargazers. This classic, groundbreaking guide has been the go-to field guide for both beginning and experienced amateur astronomers for nearly 30 years. The fourth edition brings Terence Dickinson and Alan Dyer's invaluable manual completely up-to-date. Setting a new standard for astronomy guides, it will serve as the touchstone for the next generation of stargazers as well as longtime devotees. Technology and astronomical understanding are evolving at a breathtaking clip, and to reflect the latest information about observing techniques and equipment, this massively revised and expanded edition has been completely rebuilt (an additional 48 pages brings the page count to 416). Illustrated throughout with all-new photographs and star charts, this edition boasts a refreshed design and features five brand-new chapters, including three essential essays on binocular, telescope and Moon tours by renowned astronomy writer Ken Hewitt-White. With new content on naked-eye sky sights, LED lighting technology, WiFi-enabled telescopes and the latest advances in binoculars, telescopes and other astronomical gear, the fourth edition of The Backyard Astronomer's Guide is sure to become an indispensable reference for all levels of stargazers. New techniques for observing the Sun, the Moon and solar and lunar eclipses are an especially timely addition, given the upcoming solar eclipses in 2023 and 2024. Rounding out these impressive offerings are new sections on dark sky reserves, astro-tourism, modern astrophotography and cellphone astrophotography, making this book an enduring must-have guide for anyone looking to improve his or her astronomical viewing experience. The Backyard Astronomer's Guide also features a foreword by Dr. Sara Seager, a Canadian-American astrophysicist and planetary scientist at the Massachusetts Institute of Technology and an internationally recognized expert in the search for exoplanets.
  free astronomy books online: Adaptive Optics in Astronomy François Roddier, 2004-11-11 Adaptive optics is a powerful new technique used to sharpen telescope images blurred by the Earth's atmosphere. This authoritative book is the first dedicated to the use of adaptive optics in astronomy. Mainly developed for defence applications, the technique of adaptive optics has only recently been introduced in astronomy. Already it has allowed ground-based telescopes to produce images with sharpness rivalling those from the Hubble Space Telescope. The technique is expected to revolutionise the future of ground-based optical astronomy. Written by an international team of experts who have pioneered the development of the field, this timely volume provides both a rigorous introduction to the technique and a comprehensive review of current and future systems. It is set to become the standard reference for graduate students, researchers and optical engineers in astronomy and other areas of science where adaptive optics is finding exciting new applications.
  free astronomy books online: The First Astronomers Duane Hamacher, 2022
  free astronomy books online: EVOLUTION OF WORLDS Percival 1855-1916 Lowell, 2016-08-26 This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
  free astronomy books online: The Mysteries of the Universe Will Gater, 2020-09-03 Journey from Earth to the outer reaches of the universe with this stunning book about space! You'll encounter bizarre planets, distant stars, and intricate galaxies. Every page of this captivating book reveals the secrets behind more than 100 celestial objects, from planets, asteroids to black holes and galaxies. Get ready to explore fun facts and exciting new scientific discoveries! For centuries, the mysteries of space have captured our imaginations. This picture book will illuminate imaginations and spark curious minds to explore the vastness of space. Take your little astronaut on a journey from our planet out into the furthest reaches of the universe! Filled with gorgeous illustrations and incredible photography, young readers will be intrigued by the detailed close-up images of each celestial body. The engaging storybook-style descriptions and simple text shed a light on facts, myths, and key discoveries about the universe! Explore the wonders of our solar system and beyond. This educational book also includes reference pages packed with fascinating information. Journey Through the Vastness of Space Join us on an adventure across the universe, as we rocket to the stars! Discover 100 objects from the universe, arranged from the closest to our planet to the ones furthest away. Storybook-style text and out-of-this-world pictures make this book perfect for an astronomical bedtime. It's also a fantastic gift for children who can't get enough of space. Grab your spacesuit and put your helmet on! Inside the pages of this adventure book, you'll find: - Beautiful illustrations and incredible photography that showcase the mysteries of space. - Discover 100 remarkable objects in the cosmos. - Engaging storybook-style descriptions that explain key discoveries about the universe. More to Explore Once you've discovered The Mysteries of the Universe, dive into the companion titles from this series from DK Books! The Wonders of Nature explores more than 100 items from the natural world and An Anthology of Intriguing Animals showcases animals from around the world.
  free astronomy books online: Ferguson's Astronomy, Explained Upon Sir Isaac Newton's Principles James Ferguson, Sir David Brewster, 1817
  free astronomy books online: Story of Astronomy , 2012
  free astronomy books online: Astronomy and Astrophysics in the New Millennium National Research Council, Division on Engineering and Physical Sciences, Space Studies Board, Board on Physics and Astronomy, Astronomy and Astrophysics Survey Committee, 2002-02-07 In preparing the report, Astronomy and Astrophysics in the New Millenium , the AASC made use of a series of panel reports that address various aspects of ground- and space-based astronomy and astrophysics. These reports provide in-depth technical detail. Astronomy and Astrophysics in the New Millenium: An Overview summarizes the science goals and recommended initiatives in a short, richly illustrated, non-technical booklet.
  free astronomy books online: Astronomy and Astrophysics for the 1980's, Volume 2 National Research Council, Division on Engineering and Physical Sciences, Commission on Physical Sciences, Mathematics, and Applications, Astronomy Survey Committee, 1983-02-01
  free astronomy books online: Astronomy and Astrophysics National Research Council, Division on Engineering and Physical Sciences, Space Science Board, Task Group on Astronomy and Astrophysics, 1988-02-01
  free astronomy books online: Encyclopedia of Astronomy & Astrophysics P Murdin, 2001-01-01 In a unique collaboration, Nature Publishing Group and Institute of Physics Publishing have published the most extensive and comprehensive reference work in astronomy and astrophysics. This unique resource covers the entire field of astronomy and astrophysics and this online version includes the full text of over 2,750 articles, plus sophisticated search and retrieval functionality and links to the primary literature. The Encyclopaedia's authority is assured by editorial and advisory boards drawn from the world's foremost astronomers and astrophysicists. This first class resource is an essential source of information for undergraduates, graduate students, researchers and seasoned professionals, as well as for committed amateurs, librarians and lay people wishing to consult the definitive astronomy and astrophysics reference work.
grammaticality - Is the phrase "for free" correct? - English …
Aug 16, 2011 · Because free by itself can function as an adverb in the sense "at no cost," some critics reject the phrase for free. A phrase such as for nothing, at no cost, or a similar substitute …

"Free of" vs. "Free from" - English Language & Usage Stack Exchange
Apr 15, 2017 · So free from is used to indicate protection from something problematic, and free of (which doesn't correspond neatly to freedom of) is used to indicate the absence of something: …

orthography - Free stuff - "swag" or "schwag"? - English Language ...
My company gives out free promotional items with the company name on it. Is this stuff called company swag or schwag? It seems that both come up as common usages—Google searching …

How to ask about one's availability? "free/available/not busy"?
Saying free or available rather than busy may be considered a more "positive" enquiry. It may also simply mean that you expect the person to be busy rather than free, rather than the other way …

On Saturday afternoon or in the Saturday afternoon?
Sep 16, 2011 · The choice of prepositions depends upon the temporal context in which you're speaking. "On ~ afternoon" implies that the afternoon is a single point in time; thus, that temporal …

"At/on (the) weekend (s)" - English Language & Usage Stack …
Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their …

meaning - What is free-form data entry? - English Language
If you are creating a column for free-form data entry, such as a notes column to hold data about customer interactions with your company’s customer service department, then varchar will …

word choice - What is the neutral way of telling someone to "do ...
Feb 13, 2014 · You're free to choose....and more. The choice between these depends a little bit on context. If you're trying to convey that you want them to choose, but that you don't need a say in …

word choice - English Language & Usage Stack Exchange
Aug 5, 2018 · Items given away free, typically for promotional purposes, to people attending an event, using a service, etc. It’s especially common in reference to, e.g., the very nice “swag …

etymology - Origin of the phrase "free, white, and twenty-one ...
May 20, 2022 · Bartlett Whiting, Modern Proverbs and Proverbial Sayings (1989) cites instances of "free, white and twenty-one" as a proverbial phrase going back to 1932, in Cecil Gregg, The …

grammaticality - Is the phrase "for free" correct? - English Language ...
Aug 16, 2011 · Because free by itself can function as an adverb in the sense "at no cost," some critics reject the phrase for …

"Free of" vs. "Free from" - English Language & Usage Stack Exchange
Apr 15, 2017 · So free from is used to indicate protection from something problematic, and free of (which doesn't correspond neatly …

orthography - Free stuff - "swag" or "schwag"? - English Language ...
My company gives out free promotional items with the company name on it. Is this stuff called company swag or schwag? It seems …

How to ask about one's availability? "free/available/not busy"?
Saying free or available rather than busy may be considered a more "positive" enquiry. It may also simply mean that you expect the …

On Saturday afternoon or in the Saturday afternoon?
Sep 16, 2011 · The choice of prepositions depends upon the temporal context in which you're speaking. "On ~ afternoon" implies …