Скачать книгу - Gravity

Written by a well-known author in the field, this book presents a modern understanding of the universe based on relativity, quantum physics and their elusive combination. It introduces the crucial theoretical ingredients in an accessible way, starting from the physics of Newton and developing subsequent theories all the way to the modern enigma of quantum gravity. The intermediate level presentation assumes only a general knowledge of math and physics, adopting a «two-level» approach: equations are retained throughout the chapters but set apart from the main text in boxes to allow for lay readers to understand the book. For scientists, researchers, students and lecturers in cosmology, astronomy, gravitation, quantum and theoretical physics; as well as mathematicians, students, lecturers, academics and non-experts in related fields with an interest in the subject.

The book is intended to serve as lecture material for courses on relativity at undergraduate level. Although there has been much written on special relativity the present book will emphasize the real applications of relativity. In addition, it will be physically designed with the use of box summaries so as to allow easy access of practical results. The book will be composed of eight chapters. Chapter 1 will give an introduction to special relativity that is the world without gravity. Implications will be presented with emphasis on time dilation and the Doppler shift as practical considerations. In Chapter 2, the four-vector representation of events will be introduced. The bulk of this chapter will deal with flat space dynamics. This will require the generalization of Newton's first and second laws. Some important astronomical applications will be discussed in Chapter 3 and in Chapter 4 some engineering applications of special relativity such as atomic clocks will be presented. Chapter 5 will be dedicated to the thorny question of gravity. The physical motivation of the theory must be examined and the geometrical interpretation presented. Chapter 6 will present astronomical applications of relativistic gravity. These include the usual solar system tests; light bending, time delay, gravitational red-shift, precession of Keplerian orbits. Chapter 7 will be dedicated to relativistic cosmology. Many of the standard cosmological concepts will be introduced, being mathematically simple but conceptually subtle. The concluding chapter will be largely dedicated to the global positioning system as an engineering problem that requires both inertial and gravitational relativity. The large interferometers designed as gravitational wave telescopes will be discussed here.

The greatest threat to humanities survival is about to emerge from the depths of space.This bundle includes the first three books in New York Times bestselling author Ian Douglas’ Star Carrier series.There is a milestone in the evolution of every sentient race, a Tech Singularity Event, when the species achieves transcendence through its technological advances. Now the creatures known as humans are near this momentous turning point.But an armed threat is approaching from deepest space, determined to prevent humankind from crossing over that boundary—by total annihilation if necessary.To the Sh'daar, the driving technologies of transcendent change are anathema and must be obliterated from the universe—along with those who would employ them. As their great warships destroy everything in their path en route to the Sol system, the human Confederation government falls into dangerous disarray.There is but one hope, and it rests with a rogue Navy Admiral, commander of the kilometer-long star carrier America, as he leads his courageous fighters deep into enemy space towards humankind's greatest conflict—and quite possibly its last.Includes: Earth Strike, Centre of Gravity and Singularity.

How do you find someone who wants to be lost?Sisters Alice and Natalie were once close, but adolescence has wrenched them apart. Alice loves books and birds in equal measure whilst Natalie, the beautiful one, is sexy and manipulative, effortlessly captivating men.On their lakeside family holiday, Alice falls under the thrall of the enigmatic next-door-neighbour, a struggling young painter. Natalie seems strangely unmoved by the charismatic stranger in their midst. She tolerates the family sittings for the portrait Thomas is painting with a barely disguised distaste. But as the family portrait nears completion, the family dynamics shift irrevocably. And by the end of the summer, three lives are shattered.Four decades later, the only thing that remains of that fateful summer is a painting of the sisters. The artist is determined to take the secrets of the girls to the grave, but his close friend decides to use the painting to beat a path to the past before it closes the door on them all for good…A haunting, unforgettable debut about family, forbidden love and long-buried secrets.

Интернет стал главной площадкой для бизнеса, саморазвития, соц. проектов и много другого и сейчас очень важно уметь им пользоваться, поспевая за развитием технологий в этой сфере. Как раз в этом вам поможет данная книга. Онлайн-гравитация объясняет, как вы можете извлечь выгоду из лучшего понимания истинной природы Интернета и удивительной силы, которую он предлагает для улучшения вашей личной и профессиональной жизни. Профессор Пол МакКарти – ведущий специалист в области интернет-бизнеса и технологическом предпринимательстве. Он создавал инновационные проекты для IBM, NSW Government и CSIRO. Двадцатилетний опыт Пола и его исследования легли в основу книги «Онлайн-гравитация».