Join in expert discussion on special and general relativity discussion. Relativity is the dependence of various physical phenomena on relative motion of the observer and the observed objects.
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Undergrad
Ricci Scalar For Astronomical Body
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High School
How fast do space-time changes propagate?
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High School
Creating Metric Describing Large Disk
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Undergrad
A question about static spacetime in GR
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High School
Further Understanding Simultaneity Conventions
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Undergrad
Are photons definitely massless?
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High School
Another special relativity related "paradox"
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High School
Is there a lining to our Universe?
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Undergrad
Inverse Square Law for Black Holes
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Undergrad
Asymmetry in Length contraction?
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High School
Is Time Defined by Relative Motion in SR and GR?
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Undergrad
Invariant Mass-Energy in FRW Spacetime
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Undergrad
Noether's second theorem: two questions
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High School
Trying to understand what "time" is (layperson)
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High School
What is the effect of the twin paradoxon?
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High School
Max Speed of Molecules: 1 Electron Stripped?
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High School
Time dilation in a planet-moon system
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Undergrad
Forces and gravitational time dilation
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Undergrad
Why is there nothing faster than light?
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Undergrad
Radiatively efficient accretion onto BHs
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High School
Can Relativistic Mass Create a Black Hole?
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