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 The question: What are the components of the gab metric in Kaluza-Klein theory?
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Graduate Difference between timelike and space like events
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Undergrad Does speed of light change in strong gravitational fields?
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Graduate Why do the space time get curved around a massive object?
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Graduate Postulates of STR: Light Speed Constant in All Inertial Frames
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Graduate Short question about length contraction
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Graduate Verify Summation in Christoffel Symbols Formula
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Graduate Questions about the Riemann Tensor
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Graduate Evidence of Special Relativity
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Graduate Derivation of Lorentz transformation (time)
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Graduate Geodesic Conjugate Points Explained
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Graduate EM Tensor & GR: Does Space Curvature Impact EM Field?
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Graduate Deriving Lorentz contraction from Michelson-Morley experiment
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Graduate Equations of state for photon gas
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Graduate Einstein tensor in the FLRW frame
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Graduate Energy conservation in a FLRW spacetime
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Graduate On the origin of gravity. (Mass, or energy density?)
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Graduate Original derivation of Papapetrou equations
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Graduate Time Shown on Clock Face of Moving Observer: Raytracing in Relativistic Flight
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Graduate 4-Velocity and World Line Parameterization
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Graduate How did Einstein simplify the units of c?
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Graduate Questions on length contraction in train light clock experiment?
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Graduate Schwartzchild Radius Adjustment: Susskind's Online Lecture Series
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Graduate Deriving Schwarzschild Metric: How to Come Up with a Proper Ansatz?
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Graduate Proof of impossibility of superluminal signals?
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Graduate Lorentz Transformations: 2 Formulas for Time (t)
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Graduate Galaxies traveling faster than c away from each other
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Undergrad Is Time Dilation Considered in Determining the Age of the Earth?
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Graduate Expanding Universe: Questions Beyond Our Sight
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Graduate Did Rindler coin the term "Event Horizon"?
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Graduate Help Interpreting Person's Work on Solving Einstein Field Eqns
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Graduate Question about reverse tracing the Einstein field equations
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Graduate Can Memory Invalidate the Symmetry in Special Relativity's Thought Experiments?
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Undergrad Clocks and Gravity: How Earth's Movement May Affect Timekeeping
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Undergrad What is the fabric of space time really like?
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Graduate Pseudo-complex General Relativity: Peter O. Hess & Walter Greiner
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Graduate Relativity Questions: Answers Explained
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Graduate Determination of Lorentz transform from euclid geometry
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Graduate Effect of photon gravity on another photon traveling in the opposite d
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High School Uncovering the Secrets of Gravity: Theories and Discoveries Shared
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Graduate A clock tower puzzle in a gravitational field
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Graduate What does the mass M_0 in Schwarzschild's metric represent in a vacuum solution?
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Graduate Why no "Slow Light" (or slow something)
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Local Gravity: Explanation & Demo in New Video
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Graduate Generating Artificial Fields on Satellites: Effects?
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Graduate Dark energy and space time curvature
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Graduate How much does relativity effect matter?
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Graduate Is our current math even suited for general relativity ?
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Graduate Relativistic velocity addition
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Graduate Does a light beam bend in an accelerating elevator?
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Graduate Multiplying Christoffel Symbols w/o Overloading Indices
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Graduate Can the Ricci Tensor be Simplified Further? Suggestions Needed!
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Graduate Is it possible to decouple inertial and gravitational mass?
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Graduate Theory of Relativity, "you can't tell which mass is moving"
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Graduate Possibly solved the metric without field equations
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Graduate Relativity and the universal speed limit
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Graduate See Earth's Surface from the Past: Resolution Possible?
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Graduate Coordinate Charts vs Generalized Coordinates
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Graduate Riemann curvature of a unit sphere
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Graduate Inertial & Non-Inertial Frames: Light Wavelengths
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Graduate Proving Variation of Metric K^{a b} with Killing Vector
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Graduate Particle Content of a Given State: Unruh Effect Explained
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Graduate Contracted Christoffel Symbols
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Graduate Two Time Dimensions: Understanding the Possibilities & Problems
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Graduate How Does Relativity Affect Observations of Approaching Spaceships?
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Graduate What is the discrepancy between proper time and observed time in this scenario?
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Graduate Can an object be both inside and outside a black hole at the same time?
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Graduate Why photons can't go any slower than the speed of light?
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Graduate Covariant Derivative Wrt Superscript Sign: Explained
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Graduate Particle Accelerators: Why Opposing Streams?
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Graduate Thought experiment of Special relativity
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Graduate White Hole Theory: Evidence in Our Universe
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Graduate Aerodynamics/Special Relativity Analogy
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Graduate The Einstein Maxwell Action with sources
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Graduate Do Black Holes become visible at relativistic speeds?
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Graduate What is the explanation for the null result of the Michelson-Morley experiment?
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Graduate Proper Distance: What is Relativistic Distance?
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Graduate 2 charges and the speed of light
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Graduate Lorentz Transform of Radial & Longitudinal Dependent Magnetic Field
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Graduate Final state conjecture in general relativity?
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Graduate What is the difference between GR and classical deflection of light by the Sun?
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Graduate How does muon time dilation explain the paradox of their journey to Earth?
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Graduate On the question of experimental evdidence for 'real' SR time dilation?
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Graduate Why can't we determine our motion relative to spacetime?
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Graduate What is the role of the Earth's rotation in the Michelson-Morley experiment?
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Undergrad About time when you get closer to C
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Graduate Orbital Path Length Contraction: Explained by Relativity
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Graduate New Formula for Hydrogen Spectral Lines Wavelengths/Frequencies
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Graduate (What is) Schwarzschild Radius and Potential Energy
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Graduate Does Time Truly Exist and Can We Measure It Without Clocks?
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Graduate Why are time dilatation & length contraction infinite at light speed?
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Graduate What Explains the Discrepancies in Expanding Galaxy Rates?
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Graduate Relativity vs Quantum Mechanics: Understanding the Difference
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Graduate Gravitational Wave Observatories: Testing & Feasibility
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Graduate Need help understanding Einstein's Light Clock experiment
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Graduate Confusion on Einstein's Continuously Accelerating Rocket
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Graduate How do maxwell's equations show that speed of light is constant
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Graduate Gravity Waves vs Elastic Sheet: Is the Analogy Productive?
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Graduate Is Spacetime Fabric Truly 2D or Just a Visual Representation?
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Graduate Infinite Acceleration, Conservation of Energy, and Negative Mass
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