Special and General Relativity Forum

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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.
Graduate Evidence for Variable Speed of Gravity in Coordinate Spacetime
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Graduate What Are the Dimensions of Energy and Matter in Physics?
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Graduate Can g_00 of the metric tensor depend on time
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Graduate Explaining the Paradox of Measuring Photons from the Sun
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Graduate Travel 10x the Speed of Light: Warp Drive Explained
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Graduate Gravitational red- or rather blue-shift when approaching Schwarzschild radius
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Graduate Where should I ask about mathematical problems with Riemann curvature tensor
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Graduate Can a photon truly slow down in a dense medium?
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Graduate Non-Dimensional Accretion Rate λ: Overview and Questions
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Graduate Black Hole/Entanglement Question
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Graduate Slow Motion Observed in SR Spaceships?
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Graduate Invariance of the speed of light
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Graduate 4-velocity of an observed object in GRT
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Graduate Can light experience Gravity assist?
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Graduate Physical interpretation of the stress energy momentum tensor
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Graduate Could the Twin Paradox in GR be Generalized to Completely Empty Space?
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Graduate Acceleration-free twin paradox
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Graduate Does gravity have a similar effect on energy as it does with time?
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Graduate Time dilation through velocity of a moving body
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Graduate Geodesic quation coordinate time
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Graduate By what method did Einstein derived his gravitational field equation?
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Undergrad Can Numerical Simulations Accurately Predict Orbital Precession?
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Graduate Can a black hole slow down time and create a time difference between observers?
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Graduate Acceleration and the twin paradox
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Undergrad Twin Paradox: Which Twin is Older?
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Graduate LIGO & GRB 070201 - Ruling Out a Neutron Star Merger
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Graduate Gravity's Effect on Space: Length Contraction & Light Speed
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Graduate Understanding Proper Time & Equations
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Undergrad Gravitational Time and Length Change, Looking for mass formula
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Graduate Question about Gravity and curvature of space time
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Graduate Time Dilation Notation in SR: Clarifying the Differential Form
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Graduate What Role Do Particles Play in Understanding Planck Scales in Quantum Gravity?
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Graduate What is the real impact of speed on time in the theory of time dilation?
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Graduate Does Relativity Support the Masslessness of Photons?
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Graduate Can Jensen Receive Same-Time Signals from Sensors?
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Graduate Help Make Math Connect in General Relativity
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Graduate Length Contraction of Electrons
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High School Why does time slow down and the train compress in relativity?
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Graduate GR vs SR: Reconciling Contravariant & Covariant Vector Components
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Graduate Raychoudhuri's Equation in Abstract Notation
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Undergrad Special Relativity Time Dilation Santa question
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Graduate General solution to the wave equation of electromagnetic field
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Graduate Observing black holes inside black holes
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Graduate Crossing the Event Horizon: Observing a Massive Black Hole
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Graduate Why does mass affect space time?
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Graduate Does an electron emit radiation when falling towards Earth?
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Undergrad Time Dilation: Layperson Question About Gravity's Effect on Time
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Graduate E=mc^2 Proof: Is it OK? - Adam Aulton
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Graduate Black Holes & Particle Collisions: Does Linear Momentum Transfer?
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Graduate Which Local Coordinates Are Best Suited for Different Problems and Applications?
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Graduate Einstein's Theory of Relativity
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Graduate Find Null Paths in Differentiable Manifolds Using One-Forms
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Graduate Doppler Effect and Conservation of Energy
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Graduate Topology of Relativity: Implications of Niels Bohr's Arguments
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Graduate The (non-?) flatness of a uniform gravitational field and the equivalence principle
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Undergrad Can Time Be a Dimension If It's Just a Human Construct?
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Graduate Non-rotational and rotational metric tensors
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Graduate Schwarzschild Spacetime: Ellipsoidal for Moving Observers?
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Graduate Time Dilation Effect on High-Speed Object Orbiting Massive Object
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Graduate STR removes the possibility of a common present
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Undergrad Speed of Light: What Frame of Reference?
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Graduate How Does the Observer's Perspective Resolve the Twin Paradox?
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Graduate Has a real clock corrections, with respect to an ideal clock?
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Graduate Math Applying Einstein's Theory of General Relativity
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Graduate Observing Kerr Singularity: What Would an Observer See?
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Graduate Mathematical Considerations of Spacetime in Classical Mechanics
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Graduate Is the Light Clock Calibration the Key to Understanding Relativity?
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Undergrad Time Dilation: Do Astronauts See Events on Earth Slower?
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Graduate What Happens During Accretion to a Primordial Black Hole?
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Graduate If you're traveling at the speed of light, then time stops
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Graduate Is the Relativity of Simultaneity Always True?
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High School Does space move? What is space?
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Undergrad Is All Motion Truly Relative to Space?
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Undergrad Around the Earth Clock: Does Special Relativity Hold True?
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Graduate Gravitational Effects of Gyros Near a Massive Object
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Graduate Length contraction in diagonal motion and something strange?
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Graduate So, what exactly do we mean by flat space?
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Graduate Notational clash in index notation?
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Graduate Maximum angular momentum for charged black hole?
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Graduate What would GRT look like if negative masses existed?
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Graduate Coordinate Translation Vectors & Covectors
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Graduate Accretion in Extreme Conditions: PBHs & More
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Graduate Cosmology Chapter Mistake: Reflections on Relativity
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Graduate Mapping Space with Clocks: Deduce Distances/Observers w/ Constant Light Speed
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Graduate Length contraction and time dilation in spacetime
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Graduate MTW Ch7: Choosing Lagrangian for Scalar Potential
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Graduate Existence of affine parameters of null geodesics
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Graduate Velocity of Accelerated Observer in SR: Understanding the Paradox
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Graduate Understanding the Role of Tensor Calculus in General Relativity
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Graduate Piezoelectric Effect: Length Contraction & Dipole Moment
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Undergrad Relativity & Spacetime: Interval Explained
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Graduate Relativity & Distance-Time: Is It True?
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Graduate Partial derivative with respect to metric tensor
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Undergrad Is there mass if there is no gravity?
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Graduate Is Quantum Space-Time a Real Possibility?
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Graduate Solve Relativistic Momentum PROBLEM - Extra Factor of u Explained
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Graduate Could Lorentz Violations Occur in Vacuum Deep Inside Celestial Bodies?
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Graduate Measuring Light Frequency: Does Newton's Law Apply?
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Graduate Why no absolute derivative in this example of geodesic deviation?
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Graduate How Does Relativity Affect Time Measurement in Thought Experiments?
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