Albert Einstein's theory of relativity changed how we understand space, time, and gravity, yet its core ideas remain accessible with the right explanation.Albert Einstein's theory of relativity changed how we understand space, time, and gravity, yet its core ideas remain accessible with the right explanation. This book introduces you to the foundations of special and general relativity, tracing the reasoning that led Einstein from questions about light and motion to a new picture of the universe. You will learn what concepts such as time dilation, spacetime curvature, and mass-energy equivalence actually mean, and how they connect to observations and experiments that have confirmed them. Written in plain language and structured for readers without a physics background, this guide focuses on clarity rather than complexity. This book was generated by artificial intelligence, offering a straightforward, text-based introduction for anyone curious about one of science's most significant achievements.Albert Einstein's theory of relativity changed how we understand space, time, and gravity, yet its core ideas remain accessible with the right explanation. This book introduces you to the foundations of special and general relativity, tracing the reasoning that led Einstein from questions about light and motion to a new picture of the universe. You will learn what concepts such as time dilation, spacetime curvature, and mass-energy equivalence actually mean, and how they connect to observations and experiments that have confirmed them. Written in plain language and structured for readers without a physics background, this guide focuses on clarity rather than complexity. This book was generated by artificial intelligence, offering a straightforward, text-based introduction for anyone curious about one of science's most significant achievements.