Gravity: Where Do We Stand?

Author: Roberto Peron,Monica Colpi,Vittorio Gorini,Ugo Moschella

Publisher: Springer

ISBN: 3319202243

Category: Science

Page: 484

View: 7424

DOWNLOAD NOW »
This book presents an overview of the current understanding of gravitation, with a focus on the current efforts to test its theory, especially general relativity. It shows how the quest for a deeper theory, which would possibly incorporate gravity in the quantum realm, is more than ever an open field. The majority of the contributions deals with the manifold facets of “experimental gravitation”, but the book goes beyond this and covers a broad range of subjects from the foundations of gravitational theories to astrophysics and cosmology. The book is divided into three parts. The first part deals with foundations and Solar System tests. An introductory pedagogical chapter reviews first Newtonian gravitational theory, special relativity, the equivalence principle and the basics of general relativity. Then it focuses on approximation methods, mainly the post-Newtonian formalism and the relaxed Einstein equations, with a discussion on how they are used in treating experimental tests and in the problem of generation and detection of gravitational waves. Following this is a set of chapters describing the most recent experiments, techniques and observations on the testing of gravity theories in the laboratory, around the Earth and in the Solar System. The second part is dedicated to astrophysical topics deeply linked with the study of gravitation, namely binary pulsars and the perspective of direct detection of gravitational waves. These cases are paradigmatic in that the gravitational signals act at the same time as messengers helping us to understand the properties of important and wide classes of astrophysical objects. The third part explores the many open issues in current knowledge of gravitation machinery, especially related to astrophysical and cosmological problems and the way possible solutions to them impact the quest for a quantum theory of gravitation and unified theory. Included is a selection of the many possible paths, giving a hint to the subtleties one is called upon. Whenever possible, a close link to observational constraints and possible experimental tests is provided. In selecting the topics of the various contributions, particular care has been devoted to ensure their fit in a coherent representation of our understanding of gravitational phenomena. The book is aimed at graduate level students and will form a valuable reference for those working in the field.

Being in Time to the Music

Author: David A. Ross

Publisher: Cambridge Scholars Publishing

ISBN: 1443802581

Category: Philosophy

Page: 485

View: 1846

DOWNLOAD NOW »
Being-in-time to the music from the ground up is a work in phenomenology, where this term is broadly defined, comprehending Plato, Heidegger, Hegel, and Marx. The most direct referent is Hegel, together with the theoretical revolution that he initiated with Phenomenology of Mind. This text’s more general purpose is to set the tone for a 21st communism based upon the idea of dancing with death, assuming full responsibility for one’s mortality, and abandoning the self to love as the meaning of existence. This dance is choreographed through my conversations with the above mentioned writers. In conversing with them I aim to displace (if not usurp) them from the throne of honour which is nothing more than the authority borrowed from me. By this I do not intend to deny completely their ‘other to me’ character. However, they exist or even ‘figure’ for me, both in the sense of of ‘count,’ having importance, as those that I read, and by which I read myself. They have borrowed my authority, namely, my own potential to be an author. So ‘reading them is to re-assume that borrowed authority. The life of the reader, to paraphrase Barthes, begins with the death of the author.

Mechanical Vibration: Where Do We Stand?

Author: Isaac Elishakoff

Publisher: Springer Science & Business Media

ISBN: 3211709630

Category: Technology & Engineering

Page: 488

View: 4563

DOWNLOAD NOW »
Written by the world’s leading researchers on various topics of linear, nonlinear, and stochastic mechanical vibrations, this work gives an authoritative overview of the classic yet still very modern subject of mechanical vibrations. It examines the most important contributions to the field made in the past decade, offering a critical and comprehensive portrait of the subject from various complementary perspectives.

Gravity and Grace

Reflections and Provocations

Author: Joseph Sittler

Publisher: Augsburg Books

ISBN: 9781451411812

Category: Religion

Page: 76

View: 7360

DOWNLOAD NOW »
This newly revised edition provides insights from one of the leading Lutheran theologians of the twentieth century. The essays and reflections gathered in this volume provoke readers to think about and discuss topics such as risk and faith, nature and grace, the Word of God and genuine theology, real education, the beauty and meaning of language, necessary personal choices, aging, and social issues. Study questions are provided to encourage group discussion.

Loop Quantum Gravity: The First 30 Years

Author: Ashtekar Abhay,Pullin Jorge

Publisher: World Scientific

ISBN: 9813220015

Category: Science

Page: 320

View: 4870

DOWNLOAD NOW »
This volume presents a snapshot of the state-of-the-art in loop quantum gravity from the perspective of younger leading researchers. It takes the reader from the basics to recent advances, thereby bridging an important gap. The aim is two-fold — to provide a contemporary introduction to the entire field for students and post-docs, and to present an overview of the current status for more senior researchers. The contributions include the latest developments that are not discussed in existing books, particularly recent advances in quantum dynamics both in the Hamiltonian and sum over histories approaches; and applications to cosmology of the early universe and to the quantum aspects of black holes.

Gravity

Author: Melissa West

Publisher: Entangled: Teen

ISBN: 1620610922

Category: Juvenile Fiction

Page: 400

View: 9579

DOWNLOAD NOW »
A thrilling debut packed with action and mystery. Aliens never looked so good." –Jennifer L. Armentrout, #1 NYT bestselling author In the future, only one rule will matter: Don't. Ever. Peek. Seventeen-year-old Ari Alexander just broke that rule and saw the last person she expected hovering above her bed — arrogant Jackson Locke, the most popular boy in her school. She expects instant execution or some kind of freak alien punishment, but instead, Jackson issues a challenge: help him, or everyone on Earth will die. Ari knows she should report him, but everything about Jackson makes her question what she's been taught about his kind. And against her instincts, she's falling for him. But Ari isn't just any girl, and Jackson wants more than her attention. She's a military legacy who's been trained by her father and exposed to war strategies and societal information no one can know — especially an alien spy, like Jackson. Giving Jackson the information he needs will betray her father and her country, but keeping silent will start a war. The Taking series is best enjoyed in order. Reading Order: Book #1 Gravity Book #2 Hover Book #3 Collide

Pain-Free Sitting, Standing, and Walking

Alleviate Chronic Pain by Relearning Natural Movement Patterns

Author: Craig Williamson

Publisher: Shambhala Publications

ISBN: 1590309715

Category: Health & Fitness

Page: 112

View: 7606

DOWNLOAD NOW »
"Poor body alignment or habitual movement patterns that crop up when we compensate for a bad back or painful neck can only further exacerbate existing issues-and create new problems. Williamson demonstrates how just by doing these three basic actions with optrimal body alignment and attention, you can help free yourself from existing pain and prevent further injury. ..."--Back cover.

Defying Gravity

A Celebration of Late-Blooming Women

Author: Prill Boyle

Publisher: Emmis Books

ISBN: 9781578601547

Category: Family & Relationships

Page: 224

View: 1656

DOWNLOAD NOW »
Every day, regular women are accomplishing extraordinary things later in life. Prill Boyle gathered the encouraging stories of twelve daring and determined women who accomplished incredible things at an age when most people are beginning to wind down.

Gravity

Author: Leanne Lieberman

Publisher: Orca Book Publishers

ISBN: 1554696305

Category: Young Adult Fiction

Page: 280

View: 5848

DOWNLOAD NOW »
Ellie Gold is an orthodox Jewish teenager living in Toronto in the late eighties. Ellie has no doubts about her strict religious upbringing until she falls in love with another girl at her grandmother's cottage. Aware that homosexuality clashes with Jewish observance, Ellie feels forced to either alter her sexuality or leave her community. Meanwhile, Ellie's mother, Chana, becomes convinced she has a messianic role to play, and her sister, Neshama, chafes against the restrictions of her faith. Ellie is afraid there is no way to be both gay and Jewish, but her mother and sister offer alternative concepts of God that help Ellie find a place for herself as a queer Jew.

Gravity, a Geometrical Course

Volume 2: Black Holes, Cosmology and Introduction to Supergravity

Author: Pietro Giuseppe Frè

Publisher: Springer Science & Business Media

ISBN: 9400754426

Category: Science

Page: 452

View: 8921

DOWNLOAD NOW »
‘Gravity, a Geometrical Course’ presents general relativity (GR) in a systematic and exhaustive way, covering three aspects that are homogenized into a single texture: i) the mathematical, geometrical foundations, exposed in a self consistent contemporary formalism, ii) the main physical, astrophysical and cosmological applications, updated to the issues of contemporary research and observations, with glimpses on supergravity and superstring theory, iii) the historical development of scientific ideas underlying both the birth of general relativity and its subsequent evolution. The book is divided in two volumes. Volume Two is covers black holes, cosmology and an introduction to supergravity. The aim of this volume is two-fold. It completes the presentation of GR and it introduces the reader to theory of gravitation beyond GR, which is supergravity. Starting with a short history of the black hole concept, the book covers the Kruskal extension of the Schwarzschild metric, the causal structures of Lorentzian manifolds, Penrose diagrams and a detailed analysis of the Kerr-Newman metric. An extensive historical account of the development of modern cosmology is followed by a detailed presentation of its mathematical structure, including non-isotropic cosmologies and billiards, de Sitter space and inflationary scenarios, perturbation theory and anisotropies of the Cosmic Microwave Background. The last three chapters deal with the mathematical and conceptual foundations of supergravity in the frame of free differential algebras. Branes are presented both as classical solutions of the bulk theory and as world-volume gauge theories with particular emphasis on the geometrical interpretation of kappa-supersymmetry. The rich bestiary of special geometries underlying supergravity lagrangians is presented, followed by a chapter providing glances on the equally rich collection of special solutions of supergravity. Pietro Frè is Professor of Theoretical Physics at the University of Torino, Italy and is currently serving as Scientific Counsellor of the Italian Embassy in Moscow. His scientific passion lies in supergravity and all allied topics, since the inception of the field, in 1976. He was professor at SISSA, worked in the USA and at CERN. He has taught General Relativity for 15 years. He has previously two scientific monographs, “Supergravity and Superstrings” and “The N=2 Wonderland”, He is also the author of a popular science book on cosmology and two novels, in Italian.

The Daily Discipler

Daily Readings That Will Give You A Solid Foundation in the Christian Faith

Author: Neil T. Anderson

Publisher: Gospel Light Publications

ISBN: 9780830737215

Category: Religion

Page: 560

View: 683

DOWNLOAD NOW »
The Daily Discipler provides daily discipling and mentoring from trusted author Neil Anderson. You will find 52 weeks of practical Christian theology that can be digested in only five minutes a day, five days a week. Divided into four quarters, this vital resource shows readers what it means to have a Christian worldview, who they are in Christ and how to find freedom through their Christian identity. This is the beginning of an adventure that will not only teach readers the fundamentals of their faith but will also lead them into a closer walk with God.

Defying the Pains of Gravity

Using Proper Posture Technique

Author: Jeff LaBianco, DPT, CSCS

Publisher: iUniverse

ISBN: 9781475957143

Category: Health & Fitness

Page: 116

View: 3790

DOWNLOAD NOW »
Most people think that suffering through each day with neck, back, and other joint pain is just a fact of life. But it doesn’t have to be that way. Author Jeff LaBianco, a doctor of physical therapy and certified strength and conditioning specialist, explains how simple tweaks in your posture can dramatically reduce pain caused by arthritis and other ailments. In this guidebook, you’ll learn how to • change your positioning to optimize your health; • maintain good posture in the workplace; • choose shoes that are comfortable; and • design exercise protocols that promote good posture. The suggested exercises are easy to do and can be incorporated into your daily routine. By focusing on postural awareness at all times—when you are sitting, standing, walking, lying, and lifting—you can reduce stress and pain and improve your health. Discover key concepts in stretching, strengthening, and conditioning that can dramatically improve your quality of life. You can start Defying the Pains of Gravity.

Gravity does not exist

a puzzle for the 21st century

Author: Vincent Icke

Publisher: Amsterdam University Press

ISBN: 9048517044

Category: Science

Page: 111

View: 2644

DOWNLOAD NOW »
Every scientific fact was born as an opinion about the unknown - a hypothesis. Opinion gradually becomes fact as evidence piles up to support a theory. But what if there are two theories, each of which has produced a myriad of things that correspond perfectly to the phenomena but can't be combined into one? One theory replaced the mystery of gravity with a precise model of space and time. The other theory replaced the mystery of matter with a description of quantum particles. As we understand our universe, we keep each in its own domain: space and time for very large things, particles for the very small ones. However, 13.8 billion years ago, those two incompatible domains belonged to a single realm. Who in the current or future generations of physicists will crack this seemingly impossible puzzle? This, contends the author, is not just a big question, but the biggest question in physics in our century. Combining Ickes's first-hand knowledge with a robust argument and intellectual playfulness, this fascinating book succeeds in making a notoriously difficult subject accessible to all readers interested in a better grasp of our universe. -Vincent Icke is professor of theoretical astrophysics at Universiteit Leiden, professor of cosmology at the University of Amsterdam, visual artist, and writer.

Gravity Dreams

Author: L. E. Modesitt, Jr.

Publisher: Macmillan

ISBN: 9781429995429

Category: Fiction

Page: 400

View: 9785

DOWNLOAD NOW »
In Earth's distant future, Tyndel is both teacher and mentor, a staunch devotee to his conservative and rigidly structured religious culture. Then a rogue infection of nanotechnology transforms him into a "demon", something more than human, and he is forced into exile, fleeing to the more technologically advanced space-faring civilization that lies to the north, one that his own righteous people consider evil. Although shaken by his transformation, he has the rare talent required to become a space pilot. What no one, least of all Tyndel, expects, is his deep-space encounter with a vastly superior being--perhaps with God. Other Series by L.E. Modesitt, Jr. The Saga of Recluce The Imager Portfolio The Corean Chronicles The Spellsong Cycle The Ghost Books The Ecolitan Matter The Forever Hero Timegod's World Other Books The Green Progression Hammer of Darkness The Parafaith War Adiamante Gravity Dreams The Octagonal Raven Archform: Beauty The Ethos Effect Flash The Eternity Artifact The Elysium Commission Viewpoints Critical Haze Empress of Eternity The One-Eyed Man Solar Express At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

Defying Gravity

How to Survive the Storms of Pastoral Ministry

Author: Daniel Henderson

Publisher: Moody Publishers

ISBN: 9781575678733

Category: Religion

Page: 192

View: 1662

DOWNLOAD NOW »
Satan is a strategic foe. His darts and doubts are designed to undermine the power of truth. He knows the importance of destroying the integrity and well-being of spiritual leaders in order to decimate the church of Jesus Christ. Pastors and church leaders need to learn about how to prepare for and protect themselves so they can lead effectively and without "losing altitude". Defying Gravity makes leaders aware of the pitfalls of ministry and equips them with the tools to avoid these temptations and traps. This book is the fruit of Daniel Henderson's 25 years of pastoral ministry, mostly spent as the senior pastor of three churches. It also reflects his very active ministry in the past 11 years as a speaker in pastors' conferences and renewal events, which have given him many occasions for interaction with hurting pastors. From those lessons learned he instructs on the nine gauges on the leadership instrument panel that you need to monitor to keep soaring no matter what storms come your way. The nine gauges he refers to are applied truth, spiritual intimacy, personal integrity, Biblical identity, genuine accountability, eternal significance, healthy family life, indispensible pain, and a captivating call.