Special relativity
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In physics, the special theory of relativity, or simply special relativity, is a scientific theory of the relationship between space and time. In Albert Einstein's 1905 paper, "On the Electrodynamics
Albert Einstein around 1905, the year his paper on special relativity was published
Figure 5–6. Galaxy M87 sends out a black-hole-powered jet of electrons and other sub-atomic particles traveling at nearly the speed of light.
Time dilation
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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 betwee
Special relativity
…and receiver moving directly towards or away from each other, can be derived as if it were the classical phenomenon, but modified by the addition of a time dilation term, and that is the treatment described here. Assume the receiver and the source are moving away from each other with a relative speed v as measured…
Time dilation explains why two working clocks will report different times after different accelerations. For example, time goes slower at the ISS, lagging approximately 0.01 seconds for every 12 Earth months passed. For GPS satellites to work, they must adjust for similar bending of spacetime to coordinate properly with systems on Earth.
Marine sandglass MMM