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Results tagged with general-relativity
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user 238749
A theory that describes how matter interacts dynamically with the geometry of space and time. It was first published by Einstein in 1915 and is currently used to study the structure and evolution of the universe, as well as having practical applications like GPS.
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Is gravitational field disrupted by exponential expansion during Inflationary epoch?
I have seen references to gravity not being able to keep pace during the Inflationary epoch, as gravitational field is only able to propagate at the speed of light. This was an explanation for why the …
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Observers frame of reference for history / chronolgy of very early universe [duplicate]
What is the observers frame of reference when discussing t=0 the instant of the big bang, or the Plank epoch, or the Grand Unification Epoch, or the Inflation, or the Electroweak Epoch?
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Are the unification of spacetime and the warping of space in general relativity real, or mat...
It is known that Einstein was impressed with the elegance of Maxwell’s Equations for electromagnetism, and that he was striving for something similar for gravity in his General Theory of Relativity. E …
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As space expands, does this not imply that time also expands? [duplicate]
According to General Relativity, space and time are aspects / dimensions of a unified whole. If the speed at which wave energy travels through spacetime is constant, $c$, then as distance expands, sho …
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Is there any other explanation for the expansion of the universe other than dark energy? [closed]
Why did the universe expand from the Big Bang singularity? If gravity was a separate force and in its current form by 1 Plank time, would not have gravity prevented expansion, unless there was some ot …
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Does Einstein's Equivalence Principle ignore time dilation? [duplicate]
It seems Einstein's equivalence principle is neglecting time dilation. If an observer is at rest in an inertial reference frame, free of any gravitation, she will experience time flow at the "native" …
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