Can the Laws of Physics Be Unified?


Author: Paul Langacker

Publisher: Princeton University Press

ISBN: 0691167796

Category: Science

Page: 288

View: 7469

A concise introduction to the cutting-edge science of particle physics The standard model of particle physics describes our current understanding of nature's fundamental particles and their interactions, yet gaps remain. For example, it does not include a quantum theory of gravity, nor does it explain the existence of dark matter. Once complete, however, the standard model could provide a unified description of the very building blocks of the universe. Researchers have been chasing this dream for decades, and many wonder whether such a dream can ever be made a reality. Can the Laws of Physics Be Unified? is a short introduction to this exciting frontier of physics. The book is accessibly written for students and researchers across the sciences, and for scientifically minded general readers. Paul Langacker begins with an overview of the key breakthroughs that have shaped the standard model, and then describes the fundamental particles, their interactions, and their role in cosmology. He goes on to explain field theory, internal symmetries, Yang-Mills theories, strong and electroweak interactions, the Higgs boson discovery, and neutrino physics. Langacker then looks at the questions that are still unanswered: What is the nature of the mysterious dark matter and dark energy that make up roughly 95 percent of the universe? Why is there more matter than antimatter? How can we reconcile quantum mechanics and general relativity? Can the Laws of Physics Be Unified? describes the promising theoretical ideas and new experiments that could provide answers and weighs our prospects for establishing a truly unified theory of the smallest constituents of nature and their interactions.

How Did the First Stars and Galaxies Form?


Author: Abraham Loeb

Publisher: Princeton University Press

ISBN: 9781400834068

Category: Science

Page: 216

View: 1399

Though astrophysicists have developed a theoretical framework for understanding how the first stars and galaxies formed, only now are we able to begin testing those theories with actual observations of the very distant, early universe. We are entering a new and exciting era of discovery that will advance the frontiers of knowledge, and this book couldn't be more timely. It covers all the basic concepts in cosmology, drawing on insights from an astronomer who has pioneered much of this research over the past two decades. Abraham Loeb starts from first principles, tracing the theoretical foundations of cosmology and carefully explaining the physics behind them. Topics include the gravitational growth of perturbations in an expanding universe, the abundance and properties of dark matter halos and galaxies, reionization, the observational methods used to detect the earliest galaxies and probe the diffuse gas between them--and much more. Cosmology seeks to solve the fundamental mystery of our cosmic origins. This book offers a succinct and accessible primer at a time when breathtaking technological advances promise a wealth of new observational data on the first stars and galaxies. Provides a concise introduction to cosmology Covers all the basic concepts Gives an overview of the gravitational growth of perturbations in an expanding universe Explains the process of reionization Describes the observational methods used to detect the earliest galaxies


Twentieth Century Physics


Author: Steve Adams

Publisher: CRC Press

ISBN: 9780203017180

Category: Science

Page: 532

View: 2664

The revolution in twentieth century physics has changed the way we think about space, time and matter and our own place in the universe. It has offered answers to many of the big questions of existence, such as the ultimate nature of things and the how the universe came into being. It has undermined our belief in a Newtonian mechanistic universe and a deterministic future, posing questions about parallel universes, time-travel and the origin and end of everything. At the same time we have witnessed amazing attempts at unification so that physicists are able to contemplate the discovery of a single 'theory of everything' from which we could derive the masses and types of all particles and their interactions. This book tells the story of these discoveries and the people who made them, largely through the work of Nobel Prize winning physicists.

Science Frontiers, 1946 to the Present


Author: Ray Spangenburg,Diane Moser

Publisher: Infobase Publishing

ISBN: 0816068801

Category: Life sciences

Page: 273

View: 4250

Discusses major scientists and scientific issues and discoveries of the last half of the twentieth century.

Albert Einstein

And the Frontiers of Physics


Author: Jeremy Bernstein

Publisher: Oxford University Press

ISBN: 0195092759

Category: Juvenile Nonfiction

Page: 189

View: 3553

Examines the personality as well as the thought process which led this physicist to his discoveries which have helped shape our understanding of the natural world.

Frontiers in Atomic Energy Research

Hearings Before the Subcommittee on Research and Development of the Joint Committee on Atomic Energy, Congress of the United States, Eighty-sixth Congress, Second Session ...


Author: United States. Congress. Joint Committee on Atomic Energy,United States. Congress. Joint Committee on Atomic Energy. Subcommittee on Research and Development

Publisher: N.A


Category: Nuclear energy

Page: 382

View: 5137

Considers future applications of nuclear sciences including extracting power from the H-bomb by thermonuclear reactors, nuclear explosives for peaceful purposes, space propulsion and power for satellites and space ships, direct energy conversion to electricity, and solar energy systems.

Span 200

a companion piece to the Span 200 exhibit, the story of German-American involvement in the founding and development of America ...


Author: Klaus German Wust,Norbert Mühlen,National Carl Schurz Association,Institut für Auslandsbeziehungen

Publisher: N.A


Category: Reference

Page: 95

View: 3597