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  2. Time dilation - Wikipedia

    en.wikipedia.org/wiki/Time_dilation

    The velocity time dilation is explained by Anderson in terms of the tau factor which decreases closer and closer to zero as the ship approaches the speed of light—hence the title of the novel. [48] Due to an accident, the crew is unable to stop accelerating the spacecraft, causing such extreme time dilation that the crew experiences the Big ...

  3. 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 ...

  4. How scientists can slow down time - AOL

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

    Once we started going to space, time dilation became a thing we actually had to deal with. GPS satellites, for example, are 20,000 km up going 14,000 km/hour. So, relative to an observer on the ...

  5. 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").

  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. Space travel under constant acceleration - Wikipedia

    en.wikipedia.org/wiki/Space_travel_under...

    A spaceship using significant constant acceleration will approach the speed of light over interstellar distances, so special relativity effects including time dilation become important. [ 7 ] Expressions for covered distance and elapsed time

  8. Experimental testing of time dilation - Wikipedia

    en.wikipedia.org/wiki/Experimental_testing_of...

    The time the muons need from 1917m to 0m should be about 6.4 μs. Assuming a mean lifetime of 2.2 μs, only 27 muons would reach this location if there were no time dilation. However, approximately 412 muons per hour arrived in Cambridge, resulting in a time dilation factor of 8.8 ± 0.8.

  9. Special relativity - Wikipedia

    en.wikipedia.org/wiki/Special_relativity

    However, because of time dilation, a hypothetical spaceship can travel thousands of light years during a passenger's lifetime. If a spaceship could be built that accelerates at a constant 1 g , it will, after one year, be travelling at almost the speed of light as seen from Earth.