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  2. Time dilation - Wikipedia

    en.wikipedia.org/wiki/Time_dilation

    Time dilation is the difference in elapsed time as measured by two clocks, ... could yield time-shifting results analogous to those of near-lightspeed space travel. ...

  3. Shapiro time delay - Wikipedia

    en.wikipedia.org/wiki/Shapiro_time_delay

    The Shapiro time delay effect, or gravitational time delay effect, is one of the four classic Solar System tests of general relativity. Radar signals passing near a massive object take slightly longer to travel to a target and longer to return than they would if the mass of the object were not present.

  4. Twin paradox - Wikipedia

    en.wikipedia.org/wiki/Twin_paradox

    This combines the effects of time dilation due to motion (by factor α = 0.6, five years on Earth are 3 years on ship) and the effect of increasing light-time-delay (which grows from 0 to 4 years). Of course, the observed frequency of the transmission is also 1 ⁄ 3 the frequency of the transmitter (a reduction in frequency; "red-shifted").

  5. How scientists can slow down time - AOL

    www.aol.com/news/2014-09-26-how-scientists-can...

    Special relativity says, the faster you go, the slower time goes. If you travelled a year at 95% the speed of light; you'd age one year, and people on Earth would age 3.2 years!

  6. Ferocious black holes reveal 'time dilation' in early universe

    www.aol.com/news/ferocious-black-holes-reveal...

    Time is a slippery thing, as profound thinkers like physicist Albert Einstein and, well, fictional time traveler Dr. Who plainly understood. Scientists made that point anew on Monday in a study ...

  7. Ladder paradox - Wikipedia

    en.wikipedia.org/wiki/Ladder_paradox

    The door closes, and then opens again to let the front of the ladder pass through. At a later time, the back of the ladder passes through the entrance door, which closes and then opens. We see that, as simultaneity is relative, the two doors did not need to be shut at the same time, and the ladder did not need to fit inside the garage.

  8. Gravitational time dilation - Wikipedia

    en.wikipedia.org/wiki/Gravitational_time_dilation

    Gravitational time dilation is a form of time dilation, an actual difference of elapsed time between two events, as measured by observers situated at varying distances from a gravitating mass. The lower the gravitational potential (the closer the clock is to the source of gravitation), the slower time passes, speeding up as the gravitational ...

  9. Timeline of special relativity and the speed of light - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_special...

    These two results, if combined, prove some form of time dilation. 1932 – John Cockcroft and Ernest Walton prove the mass–energy equivalence via a nuclear reaction . 1933 – Dayton Miller conducts an improved form of the Michelson–Morley experiment, claiming to contradict special relativity. [ 32 ]

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