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Books > Science & Mathematics > Astronomy, space & time > Cosmology & the universe

Relativity and Cosmology - Volume 5 of Modern Classical Physics (Paperback): Kip S. Thorne, Roger D Blandford Relativity and Cosmology - Volume 5 of Modern Classical Physics (Paperback)
Kip S. Thorne, Roger D Blandford
R1,846 R1,473 Discovery Miles 14 730 Save R373 (20%) Ships in 12 - 19 working days

A groundbreaking textbook on twenty-first-century general relativity and cosmology Kip Thorne and Roger Blandford's monumental Modern Classical Physics is now available in five stand-alone volumes that make ideal textbooks for individual graduate or advanced undergraduate courses on statistical physics; optics; elasticity and fluid dynamics; plasma physics; and relativity and cosmology. Each volume teaches the fundamental concepts, emphasizes modern, real-world applications, and gives students a physical and intuitive understanding of the subject. Relativity and Cosmology is an essential introduction to the subject, including remarkable recent advances. Written by award-winning physicists who have made fundamental contributions to the field and taught it for decades, the book differs from most others on the subject in important ways. It highlights recent transformations in our understanding of black holes, gravitational waves, and the cosmos; it emphasizes the physical interpretation of general relativity in terms of measurements made by observers; it explains the physics of the Riemann tensor in terms of tidal forces, differential frame dragging, and associated field lines; it presents an astrophysically oriented description of spinning black holes; it gives a detailed analysis of an incoming gravitational wave's interaction with a detector such as LIGO; and it provides a comprehensive, in-depth account of the universe's evolution, from its earliest moments to the present. While the book is designed to be used for a one-quarter or full-semester course, it goes deep enough to provide a foundation for understanding and participating in some areas of cutting-edge research. Includes many exercise problems Features color figures, suggestions for further reading, extensive cross-references, and a detailed index Optional "Track 2" sections make this an ideal book for a one-quarter or one-semester course An online illustration package is available to professors The five volumes, which are available individually as paperbacks and ebooks, are Statistical Physics; Optics; Elasticity and Fluid Dynamics; Plasma Physics; and Relativity and Cosmology.

A Brief History of Time (Paperback): Stephen Hawking A Brief History of Time (Paperback)
Stephen Hawking 1
R254 R223 Discovery Miles 2 230 Save R31 (12%) Ships in 12 - 19 working days
Heart of Darkness - Unraveling the Mysteries of the Invisible Universe (Paperback): Jeremiah P. Ostriker, Simon Mitton Heart of Darkness - Unraveling the Mysteries of the Invisible Universe (Paperback)
Jeremiah P. Ostriker, Simon Mitton
R519 Discovery Miles 5 190 Ships in 12 - 19 working days

Heart of Darkness describes the incredible saga of humankind's quest to unravel the deepest secrets of the universe. Over the past thirty years, scientists have learned that two little-understood components--dark matter and dark energy--comprise most of the known cosmos, explain the growth of all cosmic structure, and hold the key to the universe's fate. The story of how evidence for the so-called "Lambda-Cold Dark Matter" model of cosmology has been gathered by generations of scientists throughout the world is told here by one of the pioneers of the field, Jeremiah Ostriker, and his coauthor Simon Mitton. From humankind's early attempts to comprehend Earth's place in the solar system, to astronomers' exploration of the Milky Way galaxy and the realm of the nebulae beyond, to the detection of the primordial fluctuations of energy from which all subsequent structure developed, this book explains the physics and the history of how the current model of our universe arose and has passed every test hurled at it by the skeptics. Throughout this rich story, an essential theme is emphasized: how three aspects of rational inquiry--the application of direct measurement and observation, the introduction of mathematical modeling, and the requirement that hypotheses should be testable and verifiable--guide scientific progress and underpin our modern cosmological paradigm. This monumental puzzle is far from complete, however, as scientists confront the mysteries of the ultimate causes of cosmic structure formation and the real nature and origin of dark matter and dark energy.

How It Began - A Time-Traveler's Guide to the Universe (Paperback): Chris Impey How It Began - A Time-Traveler's Guide to the Universe (Paperback)
Chris Impey
R715 R669 Discovery Miles 6 690 Save R46 (6%) Ships in 10 - 15 working days

In this vibrant, eye-opening tour of milestones in the history of our universe, Chris Impey guides us through space and time, leading us from the familiar sights of the night sky to the dazzlingly strange aftermath of the Big Bang. What if we could look into space and see not only our place in the universe but also how we came to be here? As it happens, we can. Because it takes time for light to travel, we see more and more distant regions of the universe as they were in the successively greater past. Impey uses this concept "look-back time" to take us on an intergalactic tour that is simultaneously out in space and back in time. Performing a type of cosmic archaeology, Impey brilliantly describes the astronomical clues that scientists have used to solve fascinating mysteries about the origins and development of our universe. The milestones on this journey range from the nearby to the remote: we travel from the Moon, Jupiter, and the black hole at the heart of our galaxy all the way to the first star, the first ray of light, and even the strange, roiling conditions of the infant universe, an intense and volatile environment in which matter was created from pure energy. Impey gives us breathtaking visual descriptions and also explains what each landmark can reveal about the universe and its history. His lucid, wonderfully engaging scientific discussions bring us to the brink of modern cosmology and physics, illuminating such mind-bending concepts as invisible dimensions, timelessness, and multiple universes. A dynamic and unforgettable portrait of the cosmos, How It Began will reward its readers with a deeper understanding of the universe we inhabit as well as a renewed sense of wonder at its beauty and mystery."

Cosmology and the Early Universe (Hardcover): Pasquale Di Bari Cosmology and the Early Universe (Hardcover)
Pasquale Di Bari
R2,835 Discovery Miles 28 350 Ships in 12 - 19 working days

This book discusses cosmology from both an observational and a strong theoretical perspective. The first part focuses on gravitation, notably the expansion of the universe and determination of cosmological parameters, before moving onto the main emphasis of the book, the physics of the early universe, and the connections between cosmological models and particle physics. The book provides links with particle physics and with investigations of the theories beyond the Standard Model, especially in connection to dark matter and matter-antimatter asymmetry puzzles. Readers will gain a comprehensive account of cosmology and the latest observational results, without requiring prior knowledge of relativistic theories, making the text ideal for students. Features: Provides a self-contained discussion of modern cosmology results without requiring any prior knowledge of relativistic theories, enabling students to learn the first rudiments needed for a rigorous comprehension of cosmological concepts Contains a timely discussion of the latest cosmological results, including those from WMAP and the Planck satellite, and discuss the cosmological applications of the Nobel Prize 2017 awarded discovery of gravitational waves by the LIGO interferometer and the very high energy neutrinos discovered by the IceCube detector Includes original figures complementing mathematical derivations and accounting for the most important cosmological observations, in addition to a wide variety of problems with a full set of solutions discussed in detail in an accompanying solutions manual (available upon qualifying course adoption) To view the errata please visit the authors personal webpage.

The Universe Within - A Scientific Adventure (Paperback): Neil Shubin The Universe Within - A Scientific Adventure (Paperback)
Neil Shubin 1
R331 R299 Discovery Miles 2 990 Save R32 (10%) Ships in 9 - 17 working days

The Universe Within is a thrilling journey from today all the way back to the Big Bang, which shows the deep connections between the human body and the universe, from Neil Shubin, author of Your Inner Fish What links the birth of the moon to our body clocks? How did the creation of the Atlantic Ocean affect how we have children? What does the water inside us and on Earth have to do with the deepest stretches of space? Humanity's status in the cosmos can seem insignificant. Yet, as Neil Shubin shows, the one place where the universe, solar system and planet merge is inside your body. Exploring the smallest atomic structures and vastest reaches of space, Shubin uncovers a sublime truth: that in every one of us lies the most profound story of all - how we and our world came to be. Neil Shubin is a palaeontologist in the great tradition of his mentors, Ernst Mayr and Stephen Jay Gould. He has discovered fossils around the world that have changed the way we think about many of the key transitions in evolution and has pioneered a new synthesis of expeditionary palaeontology, developmental genetics and genomics. He trained at Columbia, Harvard and Berkeley and is currently a Professor in the Department of Organismal Biology and Anatomy at the University of Chicago. 'A new, fresh way of telling the story of life, the universe and everything ... hugely enjoyable' Tim Radford, Guardian 'Shubin is not only a distinguished scientist, but a wonderfully lucid and elegant writer; he is an irrepressibly enthusiastic teacher ... a science writer of the first rank' Oliver Sacks 'Glorious, uplifting ... It tracks the very atoms in our bodies back to the Big Bang, and shows how all the molecules that comprise us have roots in the formation of Earth ... What is special about the book is its sweep, its scope, its panorama' Wall Street Journal

One of Ten Billion Earths - How we Learn about our Planet's Past and Future from Distant Exoplanets (Paperback): Karel... One of Ten Billion Earths - How we Learn about our Planet's Past and Future from Distant Exoplanets (Paperback)
Karel Schrijver
R595 Discovery Miles 5 950 Ships in 12 - 19 working days

Illustrated with breathtaking images of the Solar System and of the Universe around it, this book explores how the discoveries within the Solar System and of exoplanets far beyond it come together to help us understand the habitability of Earth, and how these findings guide the search for exoplanets that could support life. The author highlights how, within two decades of the discovery of the first planets outside the Solar System in the 1990s, scientists concluded that planets are so common that most stars are orbited by them. The lives of exoplanets and their stars, as of our Solar System and its Sun, are inextricably interwoven. Stars are the seeds around which planets form, and they provide light and warmth for as long as they shine. At the end of their lives, stars expel massive amounts of newly forged elements into deep space, and that ejected material is incorporated into subsequent generations of planets. How do we learn about these distant worlds? What does the exploration of other planets tell us about Earth? Can we find out what the distant future may have in store for us? What do we know about exoworlds and starbirth, and where do migrating hot Jupiters, polluted white dwarfs, and free-roaming nomad planets fit in? And what does all that have to do with the habitability of Earth, the possibility of finding extraterrestrial life, and the operation of the globe-spanning network of the sciences?

Fear of a Black Universe - An Outsider's Guide to the Future of Physics (Hardcover): Stephon Alexander Fear of a Black Universe - An Outsider's Guide to the Future of Physics (Hardcover)
Stephon Alexander
R839 R783 Discovery Miles 7 830 Save R56 (7%) Ships in 9 - 17 working days
The Zeldovich Universe (IAU S308) - Genesis and Growth of the Cosmic Web (Hardcover): Rien Van de Weygaert, Sergei Shandarin,... The Zeldovich Universe (IAU S308) - Genesis and Growth of the Cosmic Web (Hardcover)
Rien Van de Weygaert, Sergei Shandarin, Enn Saar, J aan Einasto
R3,248 Discovery Miles 32 480 Ships in 12 - 19 working days

On megaparsec scales, matter and galaxies have aggregated into a complex network of interconnected filaments, wall-like structures and compact clusters surrounded by large near-empty void regions. Dubbed the 'Cosmic Web', theoretical and observational studies have led to its recognition as a key aspect of structure in the Universe, representing a universal phase in the gravitationally driven emergence and evolution of cosmic structure. IAU Symposium 308 marked the centenary of the birth of the Russian physicist and cosmologist Yakov B. Zeldovich (1914-87), who was instrumental in the development of this view of structure formation. His seminal work paved the way towards an understanding of the complex web-like structure observed in our Universe. This volume synthesizes the insights obtained from many different observational and theoretical studies, and helps prepare researchers and students working in this vibrant field for the many upcoming surveys.

Earth Is Eden - An Integral Exploration of the Trans-Himalayan Teachings (Paperback): Jon Darrall-Rew, Dustin DiPerna Earth Is Eden - An Integral Exploration of the Trans-Himalayan Teachings (Paperback)
Jon Darrall-Rew, Dustin DiPerna
R832 Discovery Miles 8 320 Ships in 10 - 15 working days
Welcome to the Universe - The Problem Book (Paperback): Neil De Grasse Tyson, Michaela Strauss, J. Richard Gott Welcome to the Universe - The Problem Book (Paperback)
Neil De Grasse Tyson, Michaela Strauss, J. Richard Gott
R918 Discovery Miles 9 180 Ships in 12 - 19 working days

Here is the essential companion to Welcome to the Universe, a New York Times bestseller that was inspired by the enormously popular introductory astronomy course for non-science majors that Neil deGrasse Tyson, Michael A. Strauss, and J. Richard Gott taught together at Princeton. This problem book features more than one hundred problems and exercises used in the original course--ideal for anyone who wants to deepen their understanding of the original material and to learn to think like an astrophysicist. Whether you're a student or teacher, citizen scientist or science enthusiast, your guided tour of the cosmos just got even more hands-on with Welcome to the Universe: The Problem Book. * The essential companion book to the acclaimed bestseller* Features the problems used in the original introductory astronomy course for non-science majors at Princeton University* Organized according to the structure of Welcome to the Universe, empowering readers to explore real astrophysical problems that are conceptually introduced in each chapter* Problems are designed to stimulate physical insight into the frontier of astrophysics* Problems develop quantitative skills, yet use math no more advanced than high school algebra* Problems are often multipart, building critical thinking and quantitative skills and developing readers' insight into what astrophysicists do* Ideal for course use--either in tandem with Welcome to the Universe or as a supplement to courses using standard astronomy textbooks--or self-study* Tested in the classroom over numerous semesters for more than a decade* Prefaced with a review of relevant concepts and equations* Full solutions and explanations are provided, allowing students and other readers to check their own understanding

Particle Physics in the LHC Era (Paperback): Giles Barr, Robin Devenish, Roman Walczak, Tony Weidberg Particle Physics in the LHC Era (Paperback)
Giles Barr, Robin Devenish, Roman Walczak, Tony Weidberg
R1,165 Discovery Miles 11 650 Ships in 12 - 19 working days

This text gives an introduction to particle physics at a level accessible to advanced undergraduate students. It is based on lectures given to 4th year physics students over a number of years, and reflects the feedback from the students. The aim is to explain the theoretical and experimental basis of the Standard Model (SM) of Particle Physics with the simplest mathematical treatment possible. All the experimental discoveries that led to the understanding of the SM relied on particle detectors and most of them required advanced particle accelerators. A unique feature of this book is that it gives a serious introduction to the fundamental accelerator and detector physics, which is currently only available in advanced graduate textbooks. The mathematical tools that are required such as group theory are covered in one chapter. A modern treatment of the Dirac equation is given in which the free particle Dirac equation is seen as being equivalent to the Lorentz transformation. The idea of generating the SM interactions from fundamental gauge symmetries is explained. The core of the book covers the SM. The tools developed are used to explain its theoretical basis and a clear discussion is given of the critical experimental evidence which underpins it. A thorough account is given of quark flavour and neutrino oscillations based on published experimental results, including some from running experiments. A simple introduction to the Higgs sector of the SM is given. This explains the key idea of how spontaneous symmetry breaking can generate particle masses without violating the underlying gauge symmetry. A key feature of this book is that it gives an accessible explanation of the discovery of the Higgs boson, including the advanced statistical techniques required. The final chapter gives an introduction to LHC physics beyond the standard model and the techniques used in searches for new physics. There is an outline of the shortcomings of the SM and a discussion of possible solutions and future experiments to resolve these outstanding questions. For updates, new results, useful links as well as corrections to errata in this book, please see the book website maintained by the authors: https://pplhcera.physics.ox.ac.uk/

Cosmos - A Sketch of the Physical Description of the Universe (Paperback, 1997): Alexander Von Humboldt Cosmos - A Sketch of the Physical Description of the Universe (Paperback, 1997)
Alexander Von Humboldt; Introduction by Nicolaas A. Rupke
R968 Discovery Miles 9 680 Ships in 10 - 15 working days

The first volume of "Cosmos," his five-volume survey of the universe, appeared in 1845, though Humboldt had labored on the entire work for nearly half a century. He scrupulously sent sections of the work to other experts for suggestions and corrections. The last volume, put together from his notes after his death, appeared in 1861. The volumes were translated almost as rapidly as they appeared. This paperback edition reprints the Harper & Brothers edition, published in New York in 1858-59.

The Crowd and the Cosmos - Adventures in the Zooniverse (Paperback): Chris Lintott The Crowd and the Cosmos - Adventures in the Zooniverse (Paperback)
Chris Lintott
R364 R330 Discovery Miles 3 300 Save R34 (9%) Ships in 9 - 17 working days

'fascinating' Brian Cox This is the story of citizen science. Where once astronomers sat at the controls of giant telescopes in remote locations, praying for clear skies, now they have no need to budge from their desks, as data arrives in their inbox. And what they receive is overwhelming; projects now being built provide more data in a few nights than in the whole of humanity's history of observing the Universe. It's not just astronomy either-dealing with this deluge of data is the major challenge for scientists at CERN, and for biologists who use automated cameras to spy on animals in their natural habitats. Artificial intelligence is one part of the solution-but will it spell the end of human involvement in scientific discovery? No, argues Chris Lintott. We humans still have unique capabilities to bring to bear-our curiosity, our capacity for wonder, and, most importantly, our capacity for surprise. It seems that humans and computers working together do better than computers can on their own. But with so much scientific data, you need a lot of scientists-a crowd, in fact. Lintott found such a crowd in the Zooniverse, the web-based project that allows hundreds of thousands of enthusiastic volunteers to contribute to science. In this book, Lintott describes the exciting discoveries that people all over the world have made, from galaxies to pulsars, exoplanets to moons, and from penguin behaviour to old ship's logs. This approach builds on a long history of so-called 'citizen science', given new power by fast internet and distributed data. Discovery is no longer the remit only of scientists in specialist labs or academics in ivory towers. It's something we can all take part in. As Lintott shows, it's a wonderful way to engage with science, yielding new insights daily. You, too, can help explore the Universe in your lunch hour.

Higher Speculations - Grand Theories and Failed Revolutions in Physics and Cosmology (Paperback): Helge Kragh Higher Speculations - Grand Theories and Failed Revolutions in Physics and Cosmology (Paperback)
Helge Kragh
R1,080 Discovery Miles 10 800 Ships in 12 - 19 working days

Throughout history, people have tried to construct 'theories of everything': highly ambitious attempts to understand nature in its totality. This account presents these theories in their historical contexts, from little-known hypotheses from the past to modern developments such as the theory of superstrings, the anthropic principle, and ideas of many universes, and uses them to problematize the limits of scientific knowledge. Do claims to theories of everything belong to science at all? Which are the epistemic standards on which an alleged scientific theory of the universe - or the multiverse - is to be judged? Such questions are currently being discussed by physicists and cosmologists, but rarely within a historical perspective. This book argues that these questions have a history and that knowledge of the historical development of 'higher speculations' may inform and qualify the current debate on the nature and limits of scientific explanation.

Theoretical Physics to Face the Challenge of LHC - Lecture Notes of the Les Houches Summer School: Volume 97, August 2011... Theoretical Physics to Face the Challenge of LHC - Lecture Notes of the Les Houches Summer School: Volume 97, August 2011 (Hardcover)
Laurent Baulieu, Karim Benakli, Michael R. Douglas, Bruno Mansoulie, Eliezer Rabinovici, …
R2,112 Discovery Miles 21 120 Ships in 12 - 19 working days

The book gathers the lecture notes of the Les Houches Summer School that was held in August 2011 for an audience of advanced graduate students and post-doctoral fellows in particle physics, theoretical physics, and cosmology, areas where new experimental results were on the verge of being discovered at CERN. Every Les Houches School has its own distinct character. This one was held during a summer of great anticipation that at any moment contact might be made with the most recent theories of the nature of the fundamental forces and the structure of space-time. In fact, during the session, the long anticipated discovery of the Higgs particle was announced. The book vividly describes the fruitful and healthy "schizophrenia" that is the rule among the community of theoreticians who have split into several components: those doing phenomenology, and those dealing with highly theoretical problems, with a few trying to bridge both domains. The lectures by theoreticians covered many directions in the theory of elementary particles, from classics such as the Supersymmetric Standard Model to very recent ideas such as the relation between black holes, hydrodynamics, and gauge-gravity duality. The lectures by experimentalists explained in detail how intensively and how precisely the LHC collider has verified the theoretical predictions of the Standard Model, predictions that were at the front lines of experimental discovery during the 70's, 80's and 90's, and how the LHC is ready to make new discoveries. They described many of the ingenious and pioneering techniques developed at CERN for the detection and the data analysis of billions of billions of proton-proton collisions.

Introduction to General Relativity, Black Holes, and Cosmology (Paperback): Yvonne Choquet-Bruhat Introduction to General Relativity, Black Holes, and Cosmology (Paperback)
Yvonne Choquet-Bruhat
R1,339 Discovery Miles 13 390 Ships in 12 - 19 working days

General Relativity is a beautiful geometric theory, simple in its mathematical formulation but leading to numerous consequences with striking physical interpretations: gravitational waves, black holes, cosmological models, and so on. This introductory textbook is written for mathematics students interested in physics and physics students interested in exact mathematical formulations (or for anyone with a scientific mind who is curious to know more of the world we live in), recent remarkable experimental and observational results which confirm the theory are clearly described and no specialised physics knowledge is required. The mathematical level of Part A is aimed at undergraduate students and could be the basis for a course on General Relativity. Part B is more advanced, but still does not require sophisticated mathematics. Based on Yvonne Choquet-Bruhat's more advanced text, General Relativity and the Einstein Equations, the aim of this book is to give with precision, but as simply as possible, the foundations and main consequences of General Relativity. The first five chapters from General Relativity and the Einstein Equations have been updated with new sections and chapters on black holes, gravitational waves, singularities, and the Reissner-Nordstroem and interior Schwarzchild solutions. The rigour behind this book will provide readers with the perfect preparation to follow the great mathematical progress in the actual development, as well as the ability to model, the latest astrophysical and cosmological observations. The book presents basic General Relativity and provides a basis for understanding and using the fundamental theory.

The Infinite Cosmos - Questions from the frontiers of cosmology (Hardcover): Joseph Silk The Infinite Cosmos - Questions from the frontiers of cosmology (Hardcover)
Joseph Silk
R1,762 Discovery Miles 17 620 Ships in 12 - 19 working days

From time immemorial, poets and philosophers have looked in awe and wonder at the Universe. Such awe is shared by astrophysicists, too, as they seek to understand its nature, and whether it has any limits. In The Infinite Cosmos, Joseph Silk, Savilian Professor of Astronomy at Oxford University, cosmologist and well-known science writer, brings together the modern understanding of the Universe, its structure, its evolution, and its possible fate, combining the latest from theory and observation. The narrative is peppered with quotations from literature and philosophy, and reflects, too, on the process of scientific discovery, and the implications of our discoveries.

Welcome to the Universe - An Astrophysical Tour (Hardcover): Neil De Grasse Tyson, Michaela Strauss, J. Richard Gott Welcome to the Universe - An Astrophysical Tour (Hardcover)
Neil De Grasse Tyson, Michaela Strauss, J. Richard Gott 1
R1,101 R977 Discovery Miles 9 770 Save R124 (11%) Ships in 12 - 19 working days

A NEW YORK TIMES BESTSELLER Welcome to the Universe is a personal guided tour of the cosmos by three of today's leading astrophysicists. Inspired by the enormously popular introductory astronomy course that Neil deGrasse Tyson, Michael A. Strauss, and J. Richard Gott taught together at Princeton, this book covers it all--from planets, stars, and galaxies to black holes, wormholes, and time travel. Describing the latest discoveries in astrophysics, the informative and entertaining narrative propels you from our home solar system to the outermost frontiers of space. How do stars live and die? Why did Pluto lose its planetary status? What are the prospects of intelligent life elsewhere in the universe? How did the universe begin? Why is it expanding and why is its expansion accelerating? Is our universe alone or part of an infinite multiverse? Answering these and many other questions, the authors open your eyes to the wonders of the cosmos, sharing their knowledge of how the universe works. Breathtaking in scope and stunningly illustrated throughout, Welcome to the Universe is for those who hunger for insights into our evolving universe that only world-class astrophysicists can provide.

How Big is Big and How Small is Small - The Sizes of Everything and Why (Hardcover, New): Timothy Paul Smith How Big is Big and How Small is Small - The Sizes of Everything and Why (Hardcover, New)
Timothy Paul Smith
R1,331 Discovery Miles 13 310 Ships in 12 - 19 working days

This book is about how big is the universe and how small are quarks, and what are the sizes of dozens of things between these two extremes. It describes the sizes of atoms and planets, quarks and galaxies, cells and sequoias. It is a romp through forty-five orders of magnitude from the smallest sub-nuclear particles we have measured, to the edge of the observed universe. It also looks at time, from the epic age of the cosmos to the fleeting lifetimes of ethereal particles. It is a narrative that trips its way from stellar magnitudes to the clocks on GPS satellites, from the nearly logarithmic scales of a piano keyboard through a system of numbers invented by Archimedes and on to the measurement of the size of an atom. Why do some things happen at certain scales? Why are cells a hundred thousandths of a meter across? Why are stars never smaller than about 100 million meters in diameter? Why are trees limited to about 120 meters in height? Why are planets spherical, but asteroids not? Often the size of an object is determined by something simple but quite unexpected. The size of a cell and a star depend in part on the ratio of surface area to volume. The divide between the size of a spherical planet and an irregular asteroid is the balance point between the gravitational forces and the chemical forces in nature. Most importantly, with a very few basic principles, it all makes sense. The world really is a most reasonable place.

The End Of Time (Paperback, New Ed): Julian Barbour The End Of Time (Paperback, New Ed)
Julian Barbour 2
R395 R358 Discovery Miles 3 580 Save R37 (9%) Ships in 9 - 17 working days

Time is an illusion. Although the laws of physics create a powerful impression that time is flowing, in fact there are only timeless 'nows'. In THE END OF TIME, the British theoretical physicist Julian Barbour describes the coming revolution in our understanding of the world: a quantum theory of the universe that brings together Einstein's general theory of relativity, which denies the existence of a unique time, and quantum mechanics, which demands one. Barbour believes that only the most radical of ideas can resolve the conflict between these two theories: that there is, quite literally, no time at all. This is the first full-length account of the crisis in our understanding that has enveloped quantum cosmology. Unifying thinking that has never been brought together before in a book for the general reader, Barbour reveals the true architecture of the universe and demonstrates how physics is coming up sharp against the extraordinary possibility that the sense of time passing emerges from a universe that is timeless. The heart of the book is the author's lucid description of how a world of stillness can appear to be teeming with motion: in this timeless world where all possible instants coexist, complex mathematical rules of quantum mechanics bind together a special selection of these instants in a coherent order that consciousness perceives as the flow of time. Finally, in a lucid and eloquent epilogue, the author speculates on the philosophical implications of his theory: Does free will exist? Is time travel possible? How did the universe begin? Where is heaven? Does the denial of time make life meaningless? Written with exceptional clarity and elegance, this profound and original work presents a dazzlingly powerful argument that all will be able to follow, but no-one with an interest in the workings of the universe will be able to ignore.

From Strange Simplicity to Complex Familiarity - A Treatise on Matter, Information, Life and Thought (Hardcover): Manfred Eigen From Strange Simplicity to Complex Familiarity - A Treatise on Matter, Information, Life and Thought (Hardcover)
Manfred Eigen
R4,651 Discovery Miles 46 510 Ships in 12 - 19 working days

This book presents a vivid argument for the almost lost idea of a unity of all natural sciences. It starts with the "strange" physics of matter, including particle physics, atomic physics and quantum mechanics, cosmology, relativity and their consequences (Chapter I), and it continues by describing the properties of material systems that are best understood by statistical and phase-space concepts (Chapter II). These lead to entropy and to the classical picture of quantitative information, initially devoid of value and meaning (Chapter III). Finally, "information space" and dynamics within it are introduced as a basis for semantics (Chapter IV), leading to an exploration of life and thought as new problems in physics (Chapter V).
Dynamic equations - again of a strange (but very general) nature - bring about the complex familiarity of the world we live in. Surprising new results in the life sciences open our eyes to the richness of physical thought, and they show us what can and what cannot be explained by a Darwinian approach. The abstract physical approach is applicable to the origins of life, of meaningful information and even of our universe.

Brief Answers to the Big Questions (Hardcover): Stephen Hawking Brief Answers to the Big Questions (Hardcover)
Stephen Hawking 1
R664 R555 Discovery Miles 5 550 Save R109 (16%) Ships in 10 - 15 working days
Billions and Billions - Thoughts on Life and Death at the Brink of the Millennium (Paperback, 1st Ballantine Books ed): Carl... Billions and Billions - Thoughts on Life and Death at the Brink of the Millennium (Paperback, 1st Ballantine Books ed)
Carl Sagan
R495 R432 Discovery Miles 4 320 Save R63 (13%) Ships in 10 - 15 working days

In the final book of his astonishing career, Carl Sagan brilliantly examines the burning questions of our lives, our world, and the universe around us.

These luminous, entertaining essays travel both the vastness of the cosmos and the intimacy of the human mind, posing such fascinating questions as how did the universe originate and how will it end, and how can we meld science and compassion to meet the challenges of the coming century? Here, too, is a rare, private glimpse of Sagan’s thoughts about love, death, and God as he struggled with fatal disease.

Ever forward-looking and vibrant with the sparkle of his unquenchable curiosity, Billions & Billions is a testament to one of the great scientific minds of our day.

Frequently Asked Questions About the Universe (Paperback): Daniel Whiteson, Jorge Cham Frequently Asked Questions About the Universe (Paperback)
Daniel Whiteson, Jorge Cham
R335 R305 Discovery Miles 3 050 Save R30 (9%) Ships in 9 - 17 working days

You've got questions: about space, time, gravity, and the odds of meeting your older self inside a wormhole. All the answers you need are right here. As a species, we may not agree on much, but one thing brings us all together: a need to know. We all wonder, and deep down we all have the same big questions. Why can't I travel back in time? Where did the universe come from? What's inside a black hole? Can I rearrange the particles in my cat and turn it into a dog? Physics professor Daniel Whiteson and researcher-turned-cartoonist Jorge Cham are experts at explaining science in ways we can all understand, in their books and on their popular podcast, Daniel and Jorge Explain the Universe. With their signature blend of humour and oh-now-I-get-it clarity, Jorge and Daniel offer short, accessible, and lighthearted answers to some of the most common, most outrageous, and most profound questions about the universe they've been asked. This witty, entertaining, and fully illustrated book is an essential troubleshooting guide for the perplexing aspects of reality, big and small, from the invisible particles that make up your body to the identical version of you currently reading this exact sentence in the corner of some other galaxy. If the universe came with an FAQ, this would be it.

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