Скачать книгу - Practical Relativity. From First Principles to the Theory of Gravity



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.


Secure PHP Development: Building 50 Practical Applications Secure PHP Development: Building 50 Practical Applications

Автор: Mohammed J. Kabir

Год издания: 

The personal home page (PHP) server-side scripting language is particular well adapted to connecting HTML-based web pages to a backend database for dynamic content. This book explains the entire nuts-and-bolts process of the PHP application life cycle: requirements, design, development, maintenance and tuning. It shows how PHP can be used to design and develop highly manageable and secure applications to solve practical problems.


Principles and Applications of Electrical Engineering Principles and Applications of Electrical Engineering

Автор: Giorgio Rizzoni

Год издания: 

Rizzoni is designed for the sophomore/junior level, Introduction to Electrical Engineering course required for non-EE majors. The most widely used book for this course, Rizzoni introduces non-majors to the three basic areas of electrical engineering: circuits, electronics, and electromechanics. The second edition continues the tradition of focusing on the topics and issues of interest to the non-electrical engineering student. To maintain student interest in these topics, Rizzoni provides numerous links between electrical engineering and other engineering fields.


Brazilian Jiu-Jitsu: Theory and Technique Brazilian Jiu-Jitsu: Theory and Technique

Автор: Gracie Renzo, Gracie Royler, Danaher John

Год издания: 

During the last decade, the martial arts world has looked to innovative mixed martial arts competitions such as the Ultimate Fighting Championship to determine which fighting style is the best. These contests have repeatedly shown the grappling style of martial arts, headed by Brazilian jiu-jitsu, to dominate. The Brazilian jiu-jitsu style stems from the premise, garnered from analysis of actual street fights, that the outcome of any fight is decided on the ground. While most martial arts deal only with the initial punching and kicking stages of combat, Brazilian jiu-jitsu concentrates on ground combat. This guide shows how to use Brazilian jiu-jitsu to increase combat effectiveness. Photographs and step-by-step instructions show how to master the techniques used in this exciting new form of combat. Renzo Gracie, a two-time world Abu Dhabi submission jiu-jitsu champion, two-time Brazilian national champion, World Combat champion, and Martial Arts Reality Superfight champion, teaches Brazilian jiu-jitsu at an elite martial arts academy. Royler Gracie has competed in the Black Belt ranks for 20 years, winning the world title four times and the Abu Dhabi world submission championship for two consecutive years. They live in New York City.


Практическая грамматика английского языка. Упражнения и комментарии / Practical English Crammar. Exercises and Comments. Учебное пособие Практическая грамматика английского языка. Упражнения и комментарии / Practical English Crammar. Exercises and Comments. Учебное пособие

Автор: В. В. Гуревич

Год издания: 

Пособие охватывает все разделы английской грамматики, с относительно элементарного уровня до продвинутого. Материал представлен в виде активных заданий, имеющих речевую направленность, и включает упражнения, отрывки связанных текстов (в основном юмористического характера). Для студентов высших учебных заведений, учащихся старших классов школ, а также для всех изучающих английский язык.


Practical aspects of neue kombinationen. Essence of entrepreneurship and settlement relations Practical aspects of neue kombinationen. Essence of entrepreneurship and settlement relations

Автор: Николай Камзин

Год издания: 

The question about the source of additional income has always been central in identifying the essence of entrepreneurship. For the study of any dynamical and structural extensive system requires a lot of intellectual effort. Having learned the essence, identifying potential internal and external display can clearly represent the structure and dynamics of the phenomena deduced. Specifying the study by examining the individual elements, and identifying cause-effect relationship of the dynamic state of the phenomenon and the world around him. International entrepreneurship as a phenomenon involved in the activity in many areas of society. The knowledge of his nature will allow all stakeholders to harmonize the internal mental processes and environmental reality. The consumer uses to access the world's goods. The entrepreneur is critical and represents their innovative ideas. Businessman realizes in practice commercial projects. The State creates conditions for personal development and political and economic means affect the cross-border commodity and cash flows, international payments.