Zhi Cheng Libros

Focusing on the fundamentals of general relativity, this book employs the International System of Units (SI) to derive key formulas and introduces low-dimensional Riemannian geometry to enhance comprehension of curved space-time. It features a thorough explanation of the Einstein summation convention, aiding in tensor calculations. Each chapter outlines specific learning goals and includes exercises and inquiry topics, facilitating a practical understanding of complex concepts. A background in advanced mathematics and general physics is sufficient for readers.

This book explores societal issues through the lens of thermodynamics, addressing conflicts like Russia-Ukraine and the dynamics of different cultures. It analyzes social systems by quantifying parameters related to social pressure and entropy, using accessible mathematics to understand societal phase transitions and their implications.