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  1. Theory of relativity - Wikipedia

    The theory of relativity comprises two physics theories by Albert Einstein: special relativity and general relativity, proposed and published in 1905 and 1915, respectively. [1] Special relativity applies to all …

  2. A simplified introduction to Einstein’s theory of relativity

    Jan 26, 2017 · Special relativity is a “special case” of general relativity. The combination of these two principles helps explain many subjects varying from the motion of the planets and the effect of gravity...

  3. Relativity | Definition, Equations, & Facts | Britannica

    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 frames of reference. General …

  4. What Is Relativity? Einstein’s Groundbreaking Theory Explained

    May 5, 2025 · In this comprehensive exploration, we will journey through the origins, principles, implications, and experimental confirmations of relativity. Along the way, we will witness how …

  5. 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, which …

  6. What is the theory of general relativity? Understanding Einstein's ...

    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 special...

  7. General Relativity For Dummies: An Intuitive Introduction

    Now, while the mathematical structure of general relativity is, without a doubt, a complicated mess to most beginners, understanding the theory itself and the physics behind it is actually quite simple. …

  8. Relativity Explained | Time-Space Theory & Impact

    May 27, 2024 · Explore Einstein's theory of relativity, understanding its impact on modern physics, black holes, GPS technology, and the universe's mysteries.

  9. 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.

  10. Theory of Relativity: Einstein’s genius idea explained for everybody ...

    Dec 30, 2024 · Einstein’s general theory of relativity describes how gravity is not an invisible force pulling objects, but rather the result of the curvature of spacetime caused by mass. This revolutionary…