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  1. Time dilation - Wikipedia

    Time dilation is the difference in elapsed time as measured by two clocks, either because of a relative velocity, a consequence of special relativity, or a difference in gravitational potential between their …

  2. Time dilation | Definition, Equation, Examples, & Facts | Britannica

    Jan 8, 2026 · Time dilation, in special relativity, the ‘slowing down’ of a clock as seen by an observer in relative motion with respect to that clock.

  3. 5.4: Time Dilation - Physics LibreTexts

    Mar 16, 2025 · Time dilation is the lengthening of the time interval between two events for an observer in an inertial frame that is moving with respect to the rest frame of the events (in which the events occur …

  4. Understanding Time Dilation: Why Time Moves Differently in Space

    May 23, 2025 · This idea, that time is not fixed, is not just the stuff of science fiction—it’s a scientifically validated phenomenon known as time dilation. Popularized by Albert Einstein’s theories of relativity, …

  5. Time Dilation Formula - GeeksforGeeks

    Jul 23, 2025 · What is Time Dilation? Time dilation is the phenomenon in which two bodies moving relative to each other (or even just a different intensity of gravitational field from each other) …

  6. Einstein Showed That Time Is Relative. But … Why Is It? - WIRED

    Jul 18, 2025 · The mind-bending concept of time dilation results from a seemingly harmless assumption—that the speed of light is the same for all observers.

  7. Time Dilation and Length Contraction | Principles & Implications

    Time dilation refers to the phenomenon where time passes at different rates for observers in relative motion. According to special relativity, a moving clock ticks slower compared to a stationary one.

  8. Time Dilation - Physics Book

    Jul 16, 2025 · Time dilation is a phenomenon that is exemplified by an apparent disparity in the passage of time within the context of multiple frames of reference. It can be observed when an object is …

  9. Time Dilation Effects in Physics - ThoughtCo

    May 8, 2025 · Time dilation is the phenomenon where two objects moving relative to each other (or even just a different intensity of gravitational field from each other) experience different rates of time flow.

  10. Time Dilation in Physics: Concepts, Formula & Real-Life Examples

    Time dilation is the phenomenon where time passes at different rates for different observers, depending on their relative velocity or their position in a gravitational field.