Bøger af Khalid S. Essa

This book presents a comprehensive overview of gravity and gravitational fields. The eight chapters are presented in two sections. Chapters in the first section address such topics as the theory of gravity, transient gravitational forces, the nature of our temporal universe, and photo-gravitational celestial mechanics. Chapters in the second section discuss how to create a gravity survey, analyze data collected by satellites and on the ground, and present visualizations of several field cases around the world.

Magnetosphere and Solar Winds, Humans and Communication consists of ten chapters organized into two sections. The first section presents a full description of the magnetosphere and its effect on the solar wind, climatic modes, the Polar Cap index in relation to magnetosphere disturbances (substorms and magnetic storms), recent developments and challenges in developed ionosphere models, and more. The second section discusses solar flux, solar proton activity over the solar cycle, temporal variation of the sun¿s activity, and macroscopic scales of spin.