
Theory of relativity - Wikipedia
The theory of relativity usually encompasses two interrelated physics theories by Albert Einstein: special relativity and general relativity, proposed and published in 1905 and 1915, …
Relativity | Definition, Equations, & Facts | Britannica
Oct 24, 2025 · Relativity, wide-ranging physical theories formed by the German-born physicist Albert Einstein. Special relativity is limited to objects that are moving with respect to inertial …
What Is Relativity? Einstein’s Groundbreaking Theory Explained
May 5, 2025 · Today, the word “relativity” is nearly synonymous with Einstein, yet few grasp the depth and elegance of his ideas. In this comprehensive exploration, we will journey through …
What is the theory of general relativity? Understanding …
Oct 29, 2024 · General relativity is physicist Albert Einstein's understanding of how gravity affects the fabric of space-time. The theory, which Einstein published in 1915, expanded the theory of …
Relativity Explained | Time-Space Theory & Impact
May 27, 2024 · The theory of relativity, introduced by Albert Einstein in the early 20th century, revolutionized our understanding of space, time, and gravity. This groundbreaking theory is …
DOE Explains...Relativity - Department of Energy
Relativity is two related theories: special relativity, which explains the relationship between space, time, mass, and energy; and general relativity, which describes how gravity fits into the mix.
Science Made Simple: What Is the Theory of Relativity?
Nov 25, 2023 · What Is the Theory of Relativity? Relativity is two related theories: special relativity, which explains the relationship between space, time, mass, and energy; and general …
Relativity – Learn Physics
Relativity is a fundamental theory in physics developed by Albert Einstein that describes the relationship between space, time, and gravity. There are two main aspects of relativity: Special …
How to understand Einstein’s relativity without math - Big Think
21 hours ago · Times dilate and lengths contract near the speed of light. Bizarre and confusing? Sure. But under relativity, it can't be any other way.
General Relativity and the Nature of Spacetime - NASA Science
Sep 16, 2025 · General Relativity and the Nature of Spacetime Test the validity of Einstein's General Theory of Relativity and investigate the nature of spacetime Einstein's General …