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
C in a Vacuum: Evidence of Constant?
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High School
I have a conceptual question about relative mass
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Undergrad
Could spacetime be non-orientable?
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Undergrad
Metric: Proper Space vs Coordinate Space
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Undergrad
Are Tidal Forces Curvature of Space?
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High School
Find Numerical Relativity Source Code
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Undergrad
Components of *J in Kerr geometry
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Graduate
How can I take the derivative?
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Undergrad
Is mass the source of spacetime?
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Undergrad
Rate of Time/Mass: Is There a Constant?
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Undergrad
Asymptotically Flat Schwarzschild Metric
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Undergrad
One way speed of light measurement
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Undergrad
Length contraction and time dilation
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Undergrad
The energy of a closed universe is zero
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Undergrad
Ray tracing in the movie Interstellar
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High School
Speed of light during acceleration
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Undergrad
Is time really moving backwards?
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High School
Misuse of Velocity Addition: Troubleshooting
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High School
Force between 2 Point Charges Across Frames
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