**Author**: Peter Coles

**Publisher:** OUP Oxford

**ISBN:** 0191579440

**Category:** Science

**Page:** 160

**View:** 8355

This book is a simple, non-technical introduction to cosmology, explaining what it is and what cosmologists do. Peter Coles discusses the history of the subject, the development of the Big Bang theory, and more speculative modern issues like quantum cosmology, superstrings, and dark matter. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

What is 'nothing'? What remains when you take all the matter away? Can empty space - a void - exist? This Very Short Introduction explores the science and the history of the elusive void: from Aristotle who insisted that the vacuum was impossible, via the theories of Newton and Einstein, to our very latest discoveries and why they can tell us extraordinary things about the cosmos. Frank Close tells the story of how scientists have explored the elusive void, and the rich discoveries that they have made there. He takes the reader on a lively and accessible history through ancient ideas and cultural superstitions to the frontiers of current research. He describes how scientists discovered that the vacuum is filled with fields; how Newton, Mach, and Einstein grappled with the nature of space and time; and how the mysterious 'aether' that was long ago supposed to permeate the void may now be making a comeback with the latest research into the 'Higgs field'. We now know that the vacuum is far from being empty - it seethes with virtual particles and antiparticles that erupt spontaneously into being, and it also may contain hidden dimensions that we were previously unaware of. These new discoveries may provide answers to some of cosmology's most fundamental questions: what lies outside the universe, and, if there was once nothing, then how did the universe begin? ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

In this Very Short Introduction Timothy Clifton looks at the development of our understanding of gravity since the early observations of Kepler and Newtonian theory. He discusses Einstein's theory of gravity, which now supplants Newton's, showing how it allows us to understand why the frequency of light changes as it passes through a gravitational field, why GPS satellites need their clocks corrected as they orbit the Earth, and why the orbits of distant neutron stars speed up. Today, almost 100 years after Einstein published his theory of gravity, we have even detected the waves of gravitational radiation that he predicted. Clifton concludes by considering the testing and application of general relativity in astrophysics and cosmology, and looks at dark energy and efforts such as string theory to combine gravity with quantum mechanics.

Dieses Buch handelt von Ideen, nicht von experimentellen oder theoretischen Methoden. Es ist ein Versuch zu zeigen, wie sich, nach den Entdeckungen dieses Jahrhunderts insbesondere im Bereich des sehr Kleinen, die Welt in den Augen des modernen Physikers darstellt. Natürlich werden einige wichtige Experimente beschrieben, aber im großen und ganzen wird darauf verzichtet, die komplizierten Metho den zu erörtern, die heute zur Untersuchung des Subatomaren ange wandt werden, um dafür um so ausführlicher auf die Struktur der Theorien und auf die Vorstellungen eingehen zu können, die die Grundlage unseres Verständnisses der Vorgänge bilden, die gegenwärtig die Front der physikalischen Forschung darstellen. Es bedürfte eines eigenen Buches, um den komplizierten und großartigen Geräten gerecht zu werden, die die Natur zwingen, unsere Fragen über die Welt der Elementarteilchen zu beantworten - ein Buch, das geschrieben werden sollte. Ich bitte den Leser dieses Buches zweierlei im Auge zu behalten . . Erstens, die Physik ist eine experimentelle Wissenschaft. Jede Theorie, jeder Begriff und jede Vorstellung über die Natur beruht letzten Endes auf experimentellen Tatbeständen, darauf, was in der Natur geschieht. Alle Abstraktionen und gedanklichen Konstruktionen haben kein ande res Ziel, als experimentelle Fakten in einfacher und übersichtlicher Weise zu beschreiben.

Astrophysics is the physics of the stars, and more widely the physics of the Universe. It enables us to understand the structure and evolution of planetary systems, stars, galaxies, interstellar gas, and the cosmos as a whole. In this Very Short Introduction, the leading astrophysicist James Binney shows how the field of astrophysics has expanded rapidly in the past century, with vast quantities of data gathered by telescopes exploiting all parts of the electromagnetic spectrum, combined with the rapid advance of computing power, which has allowed increasingly effective mathematical modelling. He illustrates how the application of fundamental principles of physics - the consideration of energy and mass, and momentum - and the two pillars of relativity and quantum mechanics, has provided insights into phenomena ranging from rapidly spinning millisecond pulsars to the collision of giant spiral galaxies. This is a clear, rigorous introduction to astrophysics for those keen to cut their teeth on a conceptual treatment involving some mathematics. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable

Astronomy, perhaps the first of the sciences, was already well developed by the time of Christ. Seventeen centuries later, after Newton showed that the movements of the planets could be explained in terms of gravitation, it became the paradigm for the mathematical sciences. In the nineteenth century the analysis of star-light allowed astrophysicists to determine both the chemical composition and the radial velocities of celestial bodies, while the development of photography enabled distant objects invisible to the human eye, to be studied and measured in comfort. Technical developments during and since the Second World War have greatly enlarged the scope of the science by permitting the study of radiation. This is a fascinating introduction to the history of Western astronomy, from prehistoric times to the origins of astrophysics in the mid-nineteenth century. Historical records are first found in Babylon and Egypt, and after two millennia the arithmetical astronomy of the Babylonians merged with the Greek geometrical approach to culminate in the Almagest of Ptolemy. This legacy was transmitted to the Latin West via Islam, and led to Copernicus's claim that the Earth is in motion. In justifying this Kepler converted astronomy into a branch of dynamics, leading to Newton's universal law of gravity. The book concludes with eighteenth- and nineteenth-century applications of Newton's law, and the first explorations of the universe of stars. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

From the first, telescopes have made dramatic revelations about the Universe and our place in it. Galileo's observations of the Moon's cratered surface and discovery of Jupiter's four big satellites profoundly altered the perception of the heavens, overturning a two-thousand year cosmologythat held the Earth to be the centre of the Universe. Over the past century, the rapid development of computer technology and sophisticated materials allowed enormous strides in the construction of telescopes. Modern telescopes range from large Earth-based optical telescopes and radio arrays linkingup across continents, to space-based telescopes capturing the Universe in infrared, ultraviolet, X-rays, and gamma rays. In combination, they have enabled us to look deep into the Universe and far back in time, capturing phenomena from galactic collisions to the formation of stars and planetarysystems, and mapping the faint glow remaining from the Big Bang. In this Very Short Introduction, Dr. Geoff Cottrell describes the basic physics of telescopes, the challenges of overcoming turbulence and distortion from the Earth's atmosphere, and the special techniques used to capture X-rays and gamma rays in space telescopes. He explains the crucialdevelopments in detectors and spectrographs that have enabled the high resolution achieved by modern telescopes, and the hopes for the new generation of telescopes currently being built across the world. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, andenthusiasm to make interesting and challenging topics highly readable.

This is a book about the invention of Western philosophy, and the first thinkers to explore ideas about the nature of reality, time, and the origin of the universe. It begins with the finding of the new papyrus fragment of Empedocles' poem, and uses the story of its discovery and interpretation to highlight the way our understanding of early philosophers is marked by their presentation in later sources. Generations of philosophers, both ancient and modern, have traced their inspiration back to the presocratics, even though we have very few of their writings left. In this book, Catherine Osborne invites her readers to dip their toes into the fragmentary remains of thinkers from Thales to Pythagoras, Heraclitus to Protagoras, to try to fill in the bits of a jigsaw that has been rejigged many times and in many different ways. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Black holes are a source of wide fascination. In this Very Short Introduction, Katherine Blundell addresses a variety of questions, including what a black hole actually is, how they are characterised and discovered, to what happens if you get too close to one. Explaining how black holes formand grow across cosmic time, as well as how many there are in the Universe, she also considers how black holes interact with matter - by stealing material that belongs to other stars, and how black holes give rise to quasars and other spectacular, yet exotic phenomena in outer space.

Stephen Hawkings Vermächtnis In seinem letzten Buch gibt Stephen Hawking Antworten auf die drängendsten Fragen unserer Zeit und nimmt uns mit auf eine persönliche Reise durch das Universum seiner Weltanschauung. Seine Gedanken zu Ursprung und Zukunft der Menschheit sind zugleich eine Mahnung, unseren Heimatplaneten besser vor den Gefahren unserer Gegenwart zu schützen. Zugänglich und klar finden Sie in diesem Buch Hawkings Antworten auf die drängendsten Fragen unserer Zeit. - Warum gibt es uns Menschen überhaupt? - Und woher kommen wir? - Gibt es im Weltall andere intelligente Lebewesen? - Existiert Gott? - In welchem Zustand befindet sich unser Heimatplanet? - Werden wir auf der Erde überleben? - Retten oder zerstören uns Naturwissenschaften und Technik? - Hilft uns die künstliche Intelligenz, die Erde zu bewahren? - Können wir den Weltraum bevölkern? - Wie werden wir die Schwächsten – Kinder, Kranke, alte Menschen – schützen? - Wie werden wir unsere Kinder erziehen? Brillanter Physiker, revolutionärer Kosmologe, unerschütterlicher Optimist. Für Stephen Hawking bergen die Weiten des Universums nicht nur naturwissenschaftliche Geheimnisse. In seinem persönlichsten Buch beantwortet der Autor die großen Fragen des menschlichen Lebens und spricht die wichtigsten Themen unserer Zeit an. Zugänglich und klar erläutert er die Folgen des menschlichen Fortschritts – vom Klimawandel bis hin zu künstlicher Intelligenz – und diskutiert seine Gefahren. Hier finden Sie Hawkings Antworten auf die Urfragen der Menschheit. Ein großer Appell an politische Machthaber und jeden Einzelnen von uns, unseren bedrohten Heimatplaneten besser zu schützen.

Infinity is an intriguing topic, with connections to religion, philosophy, metaphysics, logic, and physics as well as mathematics. Its history goes back to ancient times, with especially important contributions from Euclid, Aristotle, Eudoxus, and Archimedes. The infinitely large (infinite) isintimately related to the infinitely small (infinitesimal). Cosmologists consider sweeping questions about whether space and time are infinite. Philosophers and mathematicians ranging from Zeno to Russell have posed numerous paradoxes about infinity and infinitesimals. Many vital areas ofmathematics rest upon some version of infinity. The most obvious, and the first context in which major new techniques depended on formulating infinite processes, is calculus. But there are many others, for example Fourier analysis and fractals.In this Very Short Introduction, Ian Stewart discusses infinity in mathematics while also drawing in the various other aspects of infinity and explaining some of the major problems and insights arising from this concept. He argues that working with infinity is not just an abstract, intellectualexercise but that it is instead a concept with important practical everyday applications, and considers how mathematicians use infinity and infinitesimals to answer questions or supply techniques that do not appear to involve the infinite.ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, andenthusiasm to make interesting and challenging topics highly readable.

An isotope is a variant form of a chemical element, containing a different number of neutrons in its nucleus. Most elements exist as several isotopes. Many are stable while others are radioactive, and some may only exist fleetingly before decaying into other elements. In this Very Short Introduction, Rob Ellam explains how isotopes have proved enormously important across all the sciences and in archaeology. Radioactive isotopes may be familiar from their use in nuclear weapons, nuclear power, and in medicine, as well as in carbon dating. They have been central to establishing the age of the Earth and the origins of the solar system. Combining previous and new research, Ellam provides an overview of the nature of stable and radioactive isotopes, and considers their wide range of modern applications. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

In a startling reinterpretation of the evidence, Stillman Drake advances the hypothesis that Galileo's trial and condemnation by the Inquisition was caused not by his defiance of the Church, but by the hostility of contemporary philosophers. Galileo's own beautifully lucid arguments are used to show how his scientific method was utterly divorced from the Aristotelian approach to physics in that it was based on a search not for causes but for laws. Galileo's method was of overwhelming significance for the development of modern physics, and led to a final parting of the ways between science and philosophy. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Galaxies are the building blocks of the Universe: standing like islands in space, they are where the stars are born and where extraordinary phenomena can be observed. Many exciting discoveries have been made: how a supermassive black hole lurks at the centre of every galaxy, how enormous forces are released when galaxies collide, and what the formation of young galaxies can tell us about the mysteries of Cold Dark Matter. In this Very Short Introduction, renowned science writer John Gribbin describes the extraordinary things that astronomers are learning about galaxies, and explains how this can shed light on the origins and structure of the Universe.

Do you think of atheists as immoral pessimists who live their lives without meaning, purpose, or values? Think again! Atheism: A Very Short Introduction sets out to dispel the myths that surround atheism and show how a life without religious belief can be positive, meaningful, and moral.

Radioactivity - the breakdown of unstable atomic nuclei, releasing radiation - is a fundamental process in nature, and used to provide important applications in science, medicine, and energy production. But it remains misunderstood and feared. In this Very Short Introduction, Claudio Tuniz explains the nature and mechanisms of radioactivity.