Download or read book Reinventing Gravity written by John W. Moffat and published by Harper Collins. This book was released on 2008-09-18 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Einstein's gravity theory—his general theory of relativity—has served as the basis for a series of astonishing cosmological discoveries. But what if, nonetheless, Einstein got it wrong? Since the 1930s, physicists have noticed an alarming discrepancy between the universe as we see it and the universe that Einstein's theory of relativity predicts. There just doesn't seem to be enough stuff out there for everything to hang together. Galaxies spin so fast that, based on the amount of visible matter in them, they ought to be flung to pieces, the same way a spinning yo-yo can break its string. Cosmologists tried to solve the problem by positing dark matter—a mysterious, invisible substance that surrounds galaxies, holding the visible matter in place—and particle physicists, attempting to identify the nature of the stuff, have undertaken a slew of experiments to detect it. So far, none have. Now, John W. Moffat, a physicist at the Perimeter Institute for Theoretical Physics in Waterloo, Canada, offers a different solution to the problem. The capstone to a storybook career—one that began with a correspondence with Einstein and a conversation with Niels Bohr—Moffat's modified gravity theory, or MOG, can model the movements of the universe without recourse to dark matter, and his work challenging the constancy of the speed of light raises a stark challenge to the usual models of the first half-million years of the universe's existence. This bold new work, presenting the entirety of Moffat's hypothesis to a general readership for the first time, promises to overturn everything we thought we knew about the origins and evolution of the universe.
Download or read book Reinventing Gravity written by John W. Moffat and published by Harper Collins. This book was released on 2008-09-30 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Einstein's gravity theory—his general theory of relativity—has served as the basis for a series of astonishing cosmological discoveries. But what if, nonetheless, Einstein got it wrong? Since the 1930s, physicists have noticed an alarming discrepancy between the universe as we see it and the universe that Einstein's theory of relativity predicts. There just doesn't seem to be enough stuff out there for everything to hang together. Galaxies spin so fast that, based on the amount of visible matter in them, they ought to be flung to pieces, the same way a spinning yo-yo can break its string. Cosmologists tried to solve the problem by positing dark matter—a mysterious, invisible substance that surrounds galaxies, holding the visible matter in place—and particle physicists, attempting to identify the nature of the stuff, have undertaken a slew of experiments to detect it. So far, none have. Now, John W. Moffat, a physicist at the Perimeter Institute for Theoretical Physics in Waterloo, Canada, offers a different solution to the problem. The capstone to a storybook career—one that began with a correspondence with Einstein and a conversation with Niels Bohr—Moffat's modified gravity theory, or MOG, can model the movements of the universe without recourse to dark matter, and his work challenging the constancy of the speed of light raises a stark challenge to the usual models of the first half-million years of the universe's existence. This bold new work, presenting the entirety of Moffat's hypothesis to a general readership for the first time, promises to overturn everything we thought we knew about the origins and evolution of the universe.
Download or read book Reinventing Gravity written by John W. Moffat and published by Collins. This book was released on 2009-03-01 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arguing that Einstein's relativity and the theory of quantum mechanics are fundamentally incompatible, an introduction to the author's modified gravity theory traces recent work in string theory and quantum gravity while revealing how MOG explains the universe's behavior without relying on invisible dark matter. 15,000 first printing.
Download or read book TRADD Total Relativity and Dimensional Dynamics written by Evert Corneilous Schoevers and published by Australian Self Publishing Group. This book was released on 2024-03-01 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Embark on a transformative cosmic odyssey with TRADD: Total Relativity And Dimensional Dynamics by E. C. Schoevers. In this mind-expanding exploration, Schoevers challenges established scientific paradigms, redefining our understanding of the universe. Delve into the mysteries of space, as TRADD reintroduces it as a tangible entity, prompting profound reconsideration. Schoevers boldly reimagines gravity, proposing it emerges from intricate interactions between space and time, displacing spacetime curvature. The speed of light, a fundamental cosmic constant, takes on new significance, suggesting it may be intrinsic to space and time themselves. Time, often elusive, finds its place in plain sight within the universe's mechanics. Schoevers invites readers to question established norms, providing a fresh perspective that transcends conventional thinking. TRADD isn't just a book; it's a guide to viewing the cosmos through a different lens.
Download or read book Gravity and Gravitation written by Kurtus Ron and published by Ron Kurtus. This book was released on 2011-07 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gravity and Gravitation is a physics book that is written in a form that is easy to understand for high school and beginning college students, as well as science buffs. It is based on the lessons from the School for Champions educational website.The book explains the principles of gravity and gravitation, shows derivations of important gravity equations, and provides applications of those equations. It also compares the different theories of gravitation, from those of Newton to Einstein to present-day concepts.
Download or read book Gravity s Mysteries written by Louis Komzsik and published by Trafford Publishing. This book was released on 2012-02 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gravity is the most detectable physical phenomenon of the universe. Nothing or nobody can escape its grasp, even in very large, astronomical distances. It is manifested in many aspects of our lives. Yet we are still not really sure what carries it. The gradually increasing understanding of gravity throughout history and its observed effects in various physical fields are the subjects of this book. This is an enlightening read about one of the most misterious phenomena of our lives that is still far from being fully understood, presenting a historical journey through several millennia of encountering and understanding gravity's mysteries.
Download or read book Explaining Gravity Simple Consistent and Complete written by Bob Ticer and published by Page Publishing Inc. This book was released on 2021-06-09 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simple explanation of gravity relates to the Higgs mechanism and the Pauli exclusion principle. By the latter, matter cannot occupy the same space other matter occupies, but light energy superimposes to be nearly invisible to other light. By the Higgs mechanism, light energy converts to matter. By its interaction, matter also converts back to light energy. Light speed is also slower in a gravitational field. There is thus a positive field of energy maintaining matter that emits light energy for a vacuum effect consistent with the inverse square law. As a recycling effect, it is also consistent with Einstein's cosmological constant and the cosmological principle of the big bang theory. Tired light is also included for dark energy whereby the Hubble Constant divided by light speed equates the ratio of gravitational force to electromagnetic force.
Download or read book Encyclopedia of Climate and Weather written by Dr. Stephen H. Schneider and published by Oxford University Press. This book was released on 2011-06-09 with total page 1478 pages. Available in PDF, EPUB and Kindle. Book excerpt: This three-volume A-to-Z compendium consists of over 300 entries written by a team of leading international scholars and researchers working in the field. Authoritative and up-to-date, the encyclopedia covers the processes that produce our weather, important scientific concepts, the history of ideas underlying the atmospheric sciences, biographical accounts of those who have made significant contributions to climatology and meteorology and particular weather events, from extreme tropical cyclones and tornadoes to local winds.
Download or read book The Shadow of the Black Hole written by John W. Moffat and published by Oxford University Press. This book was released on 2020-06-16 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Black holes entered the world of science fiction and films in the 1960s, and their popularity in our culture remains today. The buzz surrounding black holes was and is due, in large part, to their speculative nature. It is still difficult for the general public to determine fact versus fiction as it pertains to this terrifying idea: something big enough to swallow anything and everything in close proximity, with a gravitational force so strong that nothing, including light, can escape. In the fall of 2015, scientists at the Laser Interferometry Gravitational-Wave Observatory (LIGO) detected the first sounds from black holes, brought to earth by the gravitational waves that emitted from the merging of two black holes 1.4 billion light years away in space. This confirmed the existence of gravitational waves, which Albert Einstein predicted in 1916. In the spring of 2017, physicists and astronomers who were working on the Event Horizon Telescope (EHT) project captured the first image of a black hole. This was the supermassive black hole hosted by the galaxy M87 in the constellation Virgo, 53 million light years away, and the image shows the shadow the black hole casts upon the bright light surrounding it. In this book, John Moffat shares the history of black holes and presents the latest research into these mysterious celestial objects, including the astounding results from gravitational wave detection and the shadow of the black hole.
Download or read book It s About Time written by Alex Duthie and published by iUniverse. This book was released on 2012-02-29 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Its About Time presents an introduction to theoretical physics as well as challenges to some of the concepts put forward by theoretical physicists of our time. These scientists have presented such concepts in countless public lectures, highlights of which are compiled here along with a variety of historical data, such as the history of earth time. Also included are short biographies of physicists who have contributed significantly to our knowledge base. To help foster understanding of the related astronomical matters, Its About Time includes technical information relating to Newton and Keplers laws. Technical discussions are appended to the end of each relevant chapter. Furthermore, it offers a credible and significant challenge to Einsteins theories and to the current thinking on time dilation. Finally, the study outlines some procedural guidelines for young physicists and suggests how academic institutions can become custodians of a central depository of reference data, facilitating future physicists into more efficient and fruitful endeavors. This study offers no challenge to mathematics, which is a pure and exact science. When a physicist is able to have the mathematics represent natural phenomena, then mathematics becomes a necessary tool for our simplified understanding of nature. Eventually all of nature will be reduced to mathematical terms. The challenge presented here is to theoretical mathematics with no proven relationship to natural phenomena.
Download or read book Reinventing Development written by Adam Fforde and published by Springer. This book was released on 2017-03-17 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book debunks the foundations of contemporary government-led development policy. The author questions the predictability of success when using mainstream development doctrines and its underlying assumptions, approaching development from a sceptical standpoint, as opposed to the more common optimistic view. The book uses international development and aid as a case study of how rich countries define how change should happen. Further, it suggests alternative ways of thinking about and organizing social change.
Download or read book The Next Ten Minutes written by Andrew Peterson and published by Simon and Schuster. This book was released on 2010-10-26 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Simon & Schuster eBook. Simon & Schuster has a great book for every reader.
Download or read book Fifteenth Marcel Grossmann Meeting The On Recent Developments In Theoretical And Experimental General Relativity Astrophysics And Relativistic Field Theories Proceedings Of The Mg15 Meeting On General Relativity In 3 Volumes written by Elia S Battistelli and published by World Scientific. This book was released on 2022-05-10 with total page 2281 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three volumes of the proceedings of MG15 give a broad view of all aspects of gravitational physics and astrophysics, from mathematical issues to recent observations and experiments. The scientific program of the meeting included 40 morning plenary talks over 6 days, 5 evening popular talks and nearly 100 parallel sessions on 71 topics spread over 4 afternoons. These proceedings are a representative sample of the very many oral and poster presentations made at the meeting.Part A contains plenary and review articles and the contributions from some parallel sessions, while Parts B and C consist of those from the remaining parallel sessions. The contents range from the mathematical foundations of classical and quantum gravitational theories including recent developments in string theory, to precision tests of general relativity including progress towards the detection of gravitational waves, and from supernova cosmology to relativistic astrophysics, including topics such as gamma ray bursts, black hole physics both in our galaxy and in active galactic nuclei in other galaxies, and neutron star, pulsar and white dwarf astrophysics. Parallel sessions touch on dark matter, neutrinos, X-ray sources, astrophysical black holes, neutron stars, white dwarfs, binary systems, radiative transfer, accretion disks, quasars, gamma ray bursts, supernovas, alternative gravitational theories, perturbations of collapsed objects, analog models, black hole thermodynamics, numerical relativity, gravitational lensing, large scale structure, observational cosmology, early universe models and cosmic microwave background anisotropies, inhomogeneous cosmology, inflation, global structure, singularities, chaos, Einstein-Maxwell systems, wormholes, exact solutions of Einstein's equations, gravitational waves, gravitational wave detectors and data analysis, precision gravitational measurements, quantum gravity and loop quantum gravity, quantum cosmology, strings and branes, self-gravitating systems, gamma ray astronomy, cosmic rays and the history of general relativity.
Download or read book Dark Matter Explained written by Kristi Lew and published by Enslow Publishing, LLC. This book was released on 2018-12-15 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists believe that the universe is mostly made up of dark matter, a mysterious substance that is different from the ordinary matter people can touch, smell, see, and interact with. Dark matter cannot be directly observed, but it can be studied by examining its effect on ordinary matter. Simplified explanations of complex scientific concepts and fascinating images will help students understand how physicists employ Kepler's laws of planetary motion, gravitational lensing, particle colliders, and other theories and tools to learn about dark matter. Informative sidebars explore related timely topics in depth, while a Further Reading section provides several resources for additional study.
Download or read book Relativity in Curved Spacetime written by Eric Baird and published by Chocolate Tree Books. This book was released on 2007 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relativity theory has become one of the icons of Twentieth Century science. It's reckoned to be a difficult subject, taught as a layered series of increasingly difficult mathematics and increasingly abstract concepts. We're told that relativity theory is supposed to be this complicated and counter-intuitive. But how much of this historical complexity is really necessary? Can we bypass the interpretations and paradoxes and pseudoparadoxes of Einstein's special theory and jump directly to a deeper and more intuitive description of reality? What if curvature is a fundamental part of physics, and a final theory of relativity shouldn't reduce to Einstein's "flat" 1905 theory //on principle//? "Relativity..." takes us on a whistlestop tour of Twentieth Century physics - from black holes, quantum mechanics, wormholes and the Big Bang to the workings of the human mind, and asks: what would physics look like without special relativity? 394 printed pages, 234156 mm, 200 figures and illustrations, includes bibliography and index www.relativitybook.com
Download or read book The Sky Atlas written by Edward Brooke-Hitching and published by Chronicle Books. This book was released on 2020-02-25 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sky Atlas unveils some of the most beautiful maps and charts ever created during humankind's quest to map the skies above us. This richly illustrated treasury showcases the finest examples of celestial cartography—a glorious art often overlooked by modern map books—as well as medieval manuscripts, masterpiece paintings, ancient star catalogs, antique instruments, and other curiosities. This is the sky as it has never been presented before: the realm of stars and planets, but also of gods, devils, weather wizards, flying sailors, ancient aliens, mythological animals, and rampaging spirits. • Packed with celestial maps, illustrations, and stories of places, people, and creatures that different cultures throughout history have observed or imagined in the heavens • Readers are taken on a tour of star-obsessed cultures around the world, learning about Tibetan sky burials, star-covered Inuit dancing coats, Mongolian astral prophets and Sir William Herschel's 1781 discovery of Uranus, the first planet to be found since antiquity. • A gorgeous book that delights stargazers and map lovers alike With thrilling stories and gorgeous artwork, this remarkable atlas explores our fascination with the sky across time and cultures to form an extraordinary chronicle of cosmic imagination and discovery. The Sky Atlas is a wonderful book for map lovers, history buffs, and stargazers, but also for those who are intrigued by the many wonderful and bizarre ways in which humans have sought to understand the cosmos and our place in it. • A unique map book that expands beyond the terrestrial and into the celestial • A wonderful book for map lovers, obscure-history fans, mythology buffs, and astrology and astronomy lovers • Great for those who enjoyed What We See in the Stars: An Illustrated Tour of the Night Sky by Kelsey Oseid, Maps by Aleksandra Mizielinska and Daniel Mizielinski, and Atlas of Remote Islands: Fifty Islands I Have Never Set Foot On and Never Will by Judith Schalansky
Download or read book A Brilliant Darkness written by Joao Magueijo and published by Basic Books. This book was released on 2009-11-24 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the night of March 26, 1938, nuclear physicist Ettore Majorana boarded a ship, cash and passport in hand. He was never seen again. In A Brilliant Darkness, theoretical physicist Joao Magueijo tells the story of Majorana and his research group, "the Via Panisperna Boys," who discovered atomic fission in 1934. As Majorana, the most brilliant of the group, began to realize the implications of what they had found, he became increasingly unstable. Did he commit suicide that night in Palermo? Was he kidnapped? Did he stage his own death? A Brilliant Darkness chronicles Majorana's invaluable contributions to science -- including his major discovery, the Majorana neutrino -- while revealing the truth behind his fascinating and tragic life.
