Gravitational Time Dilation

Gravitational time dilation is the effect of time passing at different rates in regions of different gravitational potential; the faster the gravitational potential (the closer the clock is to the source of gravitation), the more slowly time passes. Albert Einstein originally predicted this effect in his theory of relativity and it has since been confirmed by tests of general relativity.

This has been demonstrated by noting that atomic clocks at differing altitudes (and thus different gravitational potential) will eventually show different times. The effects detected in such experiments are extremely small, with differences being measured in nanoseconds.

Gravitational time dilation was first described by Albert Einstein in 1907 as a consequence of special relativity in accelerated frames of reference. In general relativity, it is considered to be a difference in the passage of proper time at different positions as described by a metric tensor of spacetime. The existence of gravitational time dilation was first confirmed directly by the Pound–Rebka experiment.

Read more about Gravitational Time DilationDefinition, Outside A Non-rotating Sphere, Circular Orbits, Important Things To Stress, Experimental Confirmation

Other articles related to "gravitational time dilation, time dilations, time, gravitational":

Gravitational Time Dilation - Experimental Confirmation
... Gravitational time dilation has been experimentally measured using atomic clocks on airplanes ... Additionally, time dilations due to height differences of less than 1 meter have been experimentally verified in the laboratory ... Gravitational time dilation has also been confirmed by the Pound–Rebka experiment, observations of the spectra of the white dwarf Sirius B and experiments with time signals sent to and ...
Hafele–Keating Experiment - Overview - Gravitational Time Dilation
... General relativity predicts an additional effect, in which an increase in gravitational potential due to altitude speeds the clocks up ... In the Hafele-Keating experiment, there was a slight increase in gravitational potential due to altitude that tended to speed the clocks back up ...
Geocentric Coordinate Time
... Geocentric Coordinate Time (TCG - Temps-coordonnée géocentrique) is a coordinate time standard intended to be used as the independent variable of time for all calculations pertaining to ... It is equivalent to the proper time experienced by a clock at rest in a coordinate frame co-moving with the center of the Earth that is, a clock that performs ... It is therefore not influenced by the gravitational time dilation caused by the Earth ...
Other Uses For The Schwarzschild Radius - The Schwarzschild Radius in Gravitational Time Dilation
... Gravitational time dilation near a large, slowly rotating, nearly spherical body, such as the earth or sun can be reasonably approximated using the Schwarzschild radius as follows where is the elapsed time for an ... By measuring Earth’s gravitational time dilation, this experiment indirectly measured Earth’s Schwarzschild radius ...

Famous quotes containing the word time:

    I think that both here and in England there are two schools of thought—those who would be altruistic in regard to the Germans, hoping that by loving kindness to make them Christian again—and those who would adopt a much tougher attitude. Most decidedly I belong to the latter school, for though I am not blood-thirsty, I want the Germans to know that this time at least they have definitely lost the war.
    Franklin D. Roosevelt (1882–1945)