Forces In Nature

Following the discovery of the Higgs boson, Frank Close has produced this major revision to his classic and compelling introduction to the fundamental particles that make up the universe.

Gauge fields are the messengers carrying signals between elementary particles, enabling them to interact with each other. Originating at the level of quarks, these basic interactions percolate upwards, through nuclear and atomic physics, through chemical and solid state physics, to make our everyday world go round. This book tells the story of gauge fields, from Maxwell's 1860 theory of electromagnetism to the 1954 theory of Yang and Mills that underlies the Standard Model of elementary particle theory. In the course of the narration, the author introduces people and events in experimental and theoretical physics that contribute to ideas that have shaped our conception of the physical world.

In physics, the fundamental forces, are the interactions that do not appear to be reducible to more basic interactions. There are four conventionally accepted fundamental interactions-gravitational, electromagnetic, strong, and weak. Each one is described mathematically as a field. The gravitational force is modelled as a continuous classical field. The other three, part of the Standard Model of particle physics, are described as discrete quantum fields, and their interactions are each carried by a quantum, an elementary particle. The strong and weak interactions have short ranges, producing forces at minuscule, subatomic distances; these forces govern nuclear interactions. The strong interaction, which is carried by the gluon particle, is responsible for the binding of quarks together to form hadrons, such as protons and neutrons. As a residual effect, it creates the nuclear force that binds the latter particles to form atomic nuclei. The weak interaction, which is carried by the W and Z particles, also acts on the nucleus, mediating radioactive decay. The other two, electromagnetism and gravity, produce significant forces at macroscopic scales where the effects can be seen directly in everyday life. The electromagnetic force, carried by the photon, creates electric and magnetic fields, which are responsible for chemical bonding and are used in electrical technology. Electromagnetic forces tend to cancel each other out when large collections of objects are considered, so over the largest distances (on the scale of planets and galaxies), gravity tends to be the dominant force. All four fundamental forces are believed to be related, and to unite into a single force at high energies on a minuscule scale, the Planck scale, but particle accelerators cannot produce the enormous energies required to experimentally probe this. A goal of theoretical physicists working beyond the Standard Model is to quantize the gravitational field, yielding a theory of quantum gravity (QG) which would unite gravity in a common theoretical framework with the other three forces. Other theorists seek to unite the electroweak and strong fields within a Grand Unified Theory (GUT). Some theories, notably string theory, seek both QG and GUT within one framework, unifying all four fundamental interactions along with mass generation within a theory of everything (ToE). A few researchers have interpreted various anomalous observations in physics as evidence for a fifth force, but this is not widely accepted. This book is designed to be a state of the art, superb academic reference work and provide an overview of the topic and give the reader a structured knowledge to familiarize yourself with the topic at the most affordable price possible. The accuracy and knowledge is of an international viewpoint as the edited articles represent the inputs of many knowledgeable individuals and some of the most current knowledge on the topic, based on the date of publication.

How do and how did people perceive, manage and respond to natural disasters? How are the causes of natural disasters explained in history, how are they explained today? This volume investigates relationships between forces of nature and human culture in a multidisciplinary context bridging science and the humanities. Forces of nature and cultural responses is divided into four sections: (1) ball lightnings, (2) earthquakes and tsunamis, (3) volcanic eruptions and plagues, and (4) hurricanes and floodings. Specifically, Section 1 investigates theories and case studies of ball lightning phenomena. Section 2 includes a psychological study on the impact of earthquakes on academic performance, a study on tsunami vulnerability and recovery strategies in Thailand and a study on the social and economic aftermaths of a tsunami and a hurricane in Hawaii. Section 3 consists of a chapter on volcanic eruptions and plagues as well as cultural responses in Ancient Times and a study on contemporary vulnerability and resilience under chronic volcanic eruptions. Section 4 investigates the impact of hurricane Katrina on the current jazz scene in New Orleans and cultural responses to floodings in The Netherlands in Early Modern Times.

Sunday Times Bestseller How did life on Earth begin? What is the nature of space and time? What are the chances that we will discover life on other worlds?

This book is a popular description of the unity of the forces of nature for the general reader.At present, all interactions between bodies in nature are through to be ultimately due to the interaction of elementary particles and involve only four types of forces: universal gravitation, or gravitational forces, electromagnetic forces, nuclear forces and the so-called weak interaction.This book describes the principal properties of these four types of force and their "sphere of action", that is, the part they play in diverse natural processes that range from galaxies to the atomic nucleus and the mutual transformations of elementary particles. It includes the latest achievements of physics and gives a picture of the unresolved problems that confront science today.