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 Time Dilation in General Relativity: Twins Paradox Explained
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Graduate Lorentz invariance of Klein-Gordon Lagrangian
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Undergrad Einstein's Train Thought Experiment
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Graduate If time time dilation is infinite at v=c, then time stands still only
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Graduate Riemann Curvature Tensor Symmetries Proof
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Graduate Intuition on the Friedman equation: curvature and expansion
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Undergrad Relative Velocity Experiment - A Matter of Discussion
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Graduate Gravitational Waves: Why They're Produced & Detection
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Graduate Twin Paradox Explained: Earth & Space Time Effects
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Graduate Can n-spheres have temporal components in their metric tensor?
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Graduate Temporal components in metric tensors
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Undergrad Why Is Gravity Considered a Fundamental Force in Physics?
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Graduate Can Einstein's Equations be Applied to a Closed Universe?
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Undergrad The Doppler Effect: A Train Approaching a Stationary Observer
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Graduate Analyzing Space-Time Trajectories: Rectilinear & Positive Velocity
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Graduate The Principle of Invariant Light Speed
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Graduate Curvature of Light Paths Near a Mass
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Graduate Does Gravity Gravitates or Not? Exploring the Debate on General Relativity
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Graduate Bending of Light due to Gravity
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Graduate Why Can Light Only Travel at the Speed of Light?
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Graduate It's Now or never -- Question about "universal" time
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Graduate Time Dilatation: The Twins Paradox
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Graduate What is Active Curvature Mass?
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Graduate Has relativistic mass gone out of fashion?
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Graduate What is the metric tensor of the 4-sphere?
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Graduate Can 4D Spacetime be Embedded Isometrically in Fewer than 90 Dimensions?
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Graduate Dark Matter: Why Look for It Instead of Modifying Laws?
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Graduate What Are the Doppler Effects Experienced by Alice and Bob?
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Graduate What are the physics of length contraction?
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Graduate Gravitational attraction thought experiment
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Graduate Questions on Parallel Transport: Riemann Tensor & More
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Graduate Need an explanation for Null Vectors
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Graduate Physical Interpretation of Coordinates in GR
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Graduate Expansion of the universe | Potential Effects on Energy / Matter
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Graduate Reichenbach on SR: Conventional Element & One-Way Speed of Light
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Graduate What Happens at the Center of a Black Hole?
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Graduate Units for Coordinates - Understanding the Debate
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Graduate Gravitational deviation of matter travelling near c by a massive body
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Graduate Why Do Physicists Care About Causality?
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Graduate Parrallel transport on the 2-sphere
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Graduate Metric Tensor Components: Inverse & Derivatives
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Graduate Help in Special Theory: Relative Velocity of Spaceships
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Graduate When can we approximate General Relativity to Newtonian Gravity?
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Graduate The Block Universe: Examining the Rietdijk-Putnam Argument
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Undergrad If everything is relative to each other in this universe
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Undergrad Relativity & "Measured" Velocities: Exploring Asimov's Understanding Physics
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Graduate Hafele-Keating with the plane as reference frame?
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Graduate Covariant macroscopic electromagnetism
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Graduate Solving the "Moon Big Ben" Dilemma - Gravities vs Time
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Undergrad Schwarzschild Radius of Masses Other Than Black Holes
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Undergrad Relativistic Time, Length, Mass
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Graduate Understanding Acceleration in General Relativity
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Graduate Confusion over relativistic mass equations
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Graduate Is there any particular reason on why I keep getting flat space?
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Graduate What is the rationale behind the possibility of wormholes?
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Graduate Symmetry of Riemann Tensor: Investigating Rabmv
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Graduate Which branch of topology to study
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Graduate Is there any difference between Metric, Metric Tensor, Distance Func?
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Graduate "Centrifugal Force Reversal" Near a Black Hole
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Graduate Anyone want to review the Relativity Lab that I made?
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Graduate Manipulation within the Einstein Tensor in Einstein field equations
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Graduate What is a metric for uniformly moving frame?
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Undergrad Newton's Second Law (relativistic)
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Graduate GPS and Relativity: Impact of Time Dilation on Earth and Satellites
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Undergrad Time dilation due to changing the speed of rotation of the earth
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Graduate MMX and the extinction theorem
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Graduate Local Conformal Transformation: Coord or Metrical?
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Graduate A ball falls with no force acting on it
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Graduate Schwarz's Metric Gamma: Inertial Coordinates & Time Dilation
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Graduate Draft re Ricci vs Riemann tensors
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Graduate Kinnersley Metric: Details, Form, Reference?
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Graduate Can photon be at rest or does it have to travel at the speed of light?
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Graduate Spin and torsion of the connection
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Graduate Black Hole via charge compression
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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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