Decoding Spacetime

Black holes and gravitational radiation are two of the most dramatic predictions of general relativity. The quest for rotating black holes - discovered by Roy P. Kerr as exact solutions to the Einstein equations - is one of the most exciting challenges facing physicists and astronomers. Gravitational Radiation, Luminous Black Holes and Gamma-Ray Burst Supernovae takes the reader through the theory of gravitational radiation and rotating black holes, and the phenomenology of GRB-supernovae. Topics covered include Kerr black holes and the frame-dragging of spacetime, luminous black holes, compact tori around black holes, and black-hole spin interactions. It concludes with a discussion of prospects for gravitational-wave detections of a long-duration burst in gravitational-waves as a method of choice for identifying Kerr black holes in the Universe. This book is ideal for a special topics graduate course on gravitational-wave astronomy and as an introduction to those interested in this co

These two volumes are the proceedings of a major International Symposium on General Relativity held at the University of Maryland in March 1993 to celebrate the sixtieth birthdays of Professor Charles Misner and Professor Dieter Brill. The volumes cover classical general relativity, quantum gravity and quantum cosmology, canonical formulation and the initial value problem, topology and geometry of spacetime and fields, mathematical and physical cosmology, and black hole physics and astrophysics. As invited articles, the papers in these volumes have an aim which goes beyond that of a standard conference proceedings. Not only do the authors discuss the most recent research results in their fields, but many also provide historical perspectives on how the subjects have developed and offer individual insights in their search for new directions.

These two volumes are the proceedings of a major International Symposium on General Relativity held at the University of Maryland 27 to 29 March 1993 to celebrate the sixtieth birthdays of Professor Charles Misner and Professor Dieter Brill. The volumes cover classical general relativity, quantum gravity and quantum cosmology, canonical formulation and the initial value problem, topology and geometry of spacetime and fields, mathematical and physical cosmology, and Black Hole physics and astrophysics. As invited articles, the papers in these volumes have an aim which goes beyond that of a standard conference proceedings. Not only do the authors discuss the most recent research results in their fields, but many also provide historical perspectives on how their subjects developed and offer individual insights in their search for new directions.

String Theory, first published in 1998, comprises two volumes which provide a comprehensive and pedagogic account of the subject. Volume 2 begins with an introduction to supersymmetric string theories and presents the important advances of recent years. The first three chapters introduce the type I, type II, and heterototic superstring theories and their interactions. The next two chapters present important recent discoveries about strongly coupled strings, beginning with a detailed treatment of D-branes and their dynamics, and covering string duality, M-theory, and black hole entropy. The final chapters are concerned with four-dimensional string theories, showing how some of the simplest string models connect with previous ideas for unifying the Standard Model. They collect many important results on world-sheet and spacetime symmetries. An appendix summarizes the necessary background on fermions and supersymmetry. An essential text and reference for graduate students and researchers i

This 2004 textbook fills a gap in the literature on general relativity by providing the advanced student with practical tools for the computation of many physically interesting quantities. The context is provided by the mathematical theory of black holes, one of the most elegant, successful, and relevant applications of general relativity. Among the topics discussed are congruencies of timelike and null geodesics, the embedding of spacelike, timelike and null hypersurfaces in spacetime, and the Lagrangian and Hamiltonian formulations of general relativity. Although the book is self-contained, it is not meant to serve as an introduction to general relativity. Instead, it is meant to help the reader acquire advanced skills and become a competent researcher in relativity and gravitational physics. The primary readership consists of graduate students in gravitational physics. It will also be a useful reference for more seasoned researchers working in this field.

Based on lectures given in honour of Stephen Hawking's sixtieth birthday, this book comprises contributions from some of the world's leading theoretical physicists. It begins with a section containing chapters by successful scientific popularisers, bringing to life both Hawking's work and other exciting developments in physics. The book then goes on to provide a critical evaluation of advanced subjects in modern cosmology and theoretical physics. Topics covered include the origin of the universe, warped spacetime, cosmological singularities, quantum gravity, black holes, string theory, quantum cosmology and inflation. As well as providing a fascinating overview of the wide variety of subject areas to which Stephen Hawking has contributed, this book represents an important assessment of prospects for the future of fundamental physics and cosmology.

It’s known as the science of secrecy. Cryptography: the encoding and decoding of private information. And it is history’s most fascinating story of intrigue and cunning. From Julius Caesar and his Caesar Cipher to the code used by Mary Queen of Scots and her conspiracy to the use of the Engima machine during the Second World War, Simon Singh follows the evolution of secret writing. Accessible, compelling, and timely, this international bestseller, now adapted for young people, is sure to make readers see the past—and the future—in a whole new way.From the Hardcover edition.

The greatest challenge in fundamental physics is how quantum mechanics and general relativity can be reconciled in a theory of 'quantum gravity'. The project suggests a profound revision of our notions of space, time and matter, and so has become a key topic of debate and collaboration between physicists and philosophers. This volume collects classic and original contributions from leading experts in both fields for a provocative discussion of all the issues. This volume contains accessible introductions to the main and less well known approaches to quantum gravity. It includes exciting topics such as the fate of spacetime in various theories, the so-called 'problem of time' in canonical quantum gravity, black hole thermodynamics, and the relationship between the interpretation of quantum theory and quantum gravity. This book will be essential reading for anyone interested in the profound implications of trying to marry the two most important theories in physics.

The greatest challenge in fundamental physics is how quantum mechanics and general relativity can be reconciled in a theory of 'quantum gravity'. The project suggests a profound revision of our notions of space, time and matter, and so has become a key topic of debate and collaboration between physicists and philosophers. This volume collects classic and original contributions from leading experts in both fields for a provocative discussion of all the issues. This volume contains accessible introductions to the main and less well known approaches to quantum gravity. It includes exciting topics such as the fate of spacetime in various theories, the so-called 'problem of time' in canonical quantum gravity, black hole thermodynamics, and the relationship between the interpretation of quantum theory and quantum gravity. This book will be essential reading for anyone interested in the profound implications of trying to marry the two most important theories in physics.

String Theory, first published in 1998, comprises two volumes which provide a comprehensive and pedagogic account of the subject. Volume 2 begins with an introduction to supersymmetric string theories and presents the important advances of recent years. The first three chapters introduce the type I, type II, and heterototic superstring theories and their interactions. The next two chapters present important recent discoveries about strongly coupled strings, beginning with a detailed treatment of D-branes and their dynamics, and covering string duality, M-theory, and black hole entropy. The final chapters are concerned with four-dimensional string theories, showing how some of the simplest string models connect with previous ideas for unifying the Standard Model. They collect many important results on world-sheet and spacetime symmetries. An appendix summarizes the necessary background on fermions and supersymmetry. An essential text and reference for graduate students and researchers i

This book presents the first, comprehensive exposition of the interpretation of quantum mechanics pioneered by Louis de Broglie and David Bohm. The purpose is to explain how quantum processes may be visualized without ambiguity or confusion, in terms of a simple physical model. Developing the theme that a material system, such as an electron, is a particle guided by a surrounding quantum wave, an examination of the classic phenomena of quantum theory is presented to show how the spacetime orbits of an ensemble of particles can reproduce the statistical quantum predictions. The mathematical and conceptual aspects of this theory are developed carefully from first principles. The book thus provides a comprehensive overview of an approach which brings clarity to a subject notorious for its conceptual difficulties. It will, therefore, appeal to all physicists with an interest in the foundations of their subject.

This book utilises the author's twenty years of research experience to describe conclusions on the nature of quasars, their distribution, and their evolution in the universe. Concentrating on observational astrophysics rather than theory, Quasar Astronomy serves as both a summary of what is known about quasars and a guide to research methods and unanswered questions. After reviewing the cosmological framework and necessary equations, the book discusses all aspects of observed quasar properties. Techniques are summarised for analysing quasar data obtained with various kinds of telescopes and extensive references are given to recent publications. The major original contributions in chapters 5 and 6 deal with the distribution of quasars in spacetime, a subject extensively discussed in the current research literature. The book not only summarises existing results from various techniques but refers to the potentialities of new instruments that are presently being developed, resulting in a u

Your child has cracked the code of letters and sounds and is ready for more! Research shows that early phonics instruction is a key to reading success. With Phonics First Steps boxed sets, kids will practice decoding and build on skills they develop with each book in the 8-book set!Children will gainconfidence each time they say, "I read this book!"Developed by a phonics expert,Phonics First Stepsare an innovative program designed to help kids learn to read, step by step. New and improved—our bright boxed sets include eight little easy-to-decode books (24 pages each), now illustrated infull-color, with an easier to read font for emergent readers—plus a handy parent guide to walk you through how to use these books with your reader.Set 3 covers short vowels, blends, digraphs, and more!

The fate of a cursed kingdom rests on ancient secrets, broken promises, and fierce friendships in this gasp-worthy final book, now in paperback, of the bestselling twisted fairytale Bone Spindle series.**Perfect for fans of Margaret Rogerson, Holly Black, and Marissa Meyer**Not all curses should be broken. Not all fairytales end happily ever after.Fi is a prisoner. Briar, a monster. Shane's a warrior. And Red is a traitor. What was once a formidable group of four fighting to reawaken the kingdom is now ruptured, torn apart by the wicked Spindle Witch.Confined to a tower with the monstrous Briar Rose, Fi is caught in the Spindle Witch’s ever-tightening web. With the Spindle Witch on the verge of finding the Siphoning Spells and crushing Andar—with Fi’s help, no less—Fi’s only hope lies in decoding the ancient riddle of the Rose Witches before she loses Briar forever.Shane is desperate to save Andar—and her partner. She’s on the hunt for a weapon left by the mysterious Lord of the Butter

COUPLET PAIR REBUS explores the principle of cause and effect in art, offering various approaches to this philosophical relationship. Based on the UMAG exhibition curated by Harald Kraemer, the COUPLET section is comprised of more than twenty calligraphic pairs of poetic lines, known in Chinese as duilian (對聯). Through the multi-layered texts, one discovers the multitude of voices that can be used to describe nature and the world and how content can be visualised through various forms of calligraphy. PAIR features artworks that form a balanced equilibrium through diverse visual languages along with objects that exemplify how mankind’s pursuits create objects in symmetrical harmony across genres. While works presented in the REBUS section form a network of diverse references that connect the objects. Individuals are then tasked with decoding these connections like a 3D puzzle.This publication features an essay by curator Harald Kraemer unpacking the issues of harmony, symmetry and contr

COUPLET PAIR REBUS explores the principle of cause and effect in art, offering various approaches to this philosophical relationship. Based on the UMAG exhibition curated by Harald Kraemer, the COUPLET section is comprised of more than twenty calligraphic pairs of poetic lines, known in Chinese as duilian (對聯). Through the multi-layered texts, one discovers the multitude of voices that can be used to describe nature and the world and how content can be visualised through various forms of calligraphy. PAIR features artworks that form a balanced equilibrium through diverse visual languages along with objects that exemplify how mankind’s pursuits create objects in symmetrical harmony across genres. While works presented in the REBUS section form a network of diverse references that connect the objects. Individuals are then tasked with decoding these connections like a 3D puzzle. This publication features an essay by curator Harald Kraemer unpacking the issues of harmony, symmetry and c

Two intrepid girls hunt for a legendary treasure on the deadly high seas in A Clash of Steel by C.B. Lee, a thrilling YA remix of the classic adventure Treasure Island.China, 1826. The sun is setting on the golden age of piracy, and the legendary Red Banner Fleet, the scourge of the South China Sea, is no more.Sheltered her whole life, Xiang desperately wants to set sail and explore like her late father. Her only memento of him is a plain gold pendant. But the pendant's true nature is revealed when a mysterious girl named Anh steals it, only to return it to Xiang in exchange for her help in decoding the tiny map scroll hidden inside. Rumor has it that the legendary Dragon Queen had one last treasure―the plunder of a thousand ports―hidden away on an island shrouded in mist.Eager for adventure, Xiang joins Anh and her crew in pursuit of the fabled treasure. But they soon find that the sea―and those who sail it―are far more dangerous than the legends led them to believe.

The highly effective card game that helps kids master phonics and improves reading – it’s so fun that children won’t even know they’re learning!Finally, a way to make phonics fun!Foolproof Phonics Blah Blah Blah Card Game is a hilariously fun card game, perfect for kids who are just starting to learn to read. Master decoding words using phonics with these three decks of increasing difficulty. Race to get rid of your cards by matching sounds and letters, and play wild cards to trip up your opponents!The bestselling and highly effective phonics game is so fun that children won’t even know they’re learning! Three decks featuring over 200 cards, covering 40 sound-letter correspondences. Easy to play with two players or more!Developed with teachers and phonics experts, and aligned to Common Core standards.Tested with teachers and kids to make sure they love it.“This game is a fantastically fun way for young people (and their parents) to develop and practice their phonic knowledge. It covers

Using easy-to-follow mathematics, this textbook provides comprehensive coverage of block codes and techniques for reliable communications and data storage. It covers major code designs and constructions from geometric, algebraic, and graph-theoretic points of view, decoding algorithms, error control additive white Gaussian noise (AWGN) and erasure, and dataless recovery. It simplifies a highly mathematical subject to a level that can be understood and applied with a minimum background in mathematics, provides step-by-step explanation of all covered topics, both fundamental and advanced, and includes plenty of practical illustrative examples to assist understanding. Numerous homework problems are included to strengthen student comprehension of new and abstract concepts, and a solutions manual is available online for instructors. Modern developments, including polar codes, are also covered. An essential textbook for senior undergraduates and graduates taking introductory coding courses,