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.
Undergrad Definition of "Spatial X Direction" in Spacetime Context
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Undergrad Cauchy Stress Tensor in Applied Strength of Materials
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Undergrad Question on the space shuttle Challenger experimentation, in 1985
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Undergrad Adapting Schwarzschild Metric for Nonzero Λ
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Undergrad Time Dilation along Multiple Axes
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Undergrad Essential Math Topics for GR: Semi-Riemannian Geometry (Newman)
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Undergrad Atomic Clock Exp on Ballistic Flight: Proving Clocks are Accelerometers
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Undergrad Measuring Light Reflection in a Black Hole
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Undergrad Is the Fizeau-Type Experiment Valid for Measuring the One-Way Speed of Light?
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Undergrad Spin (or not) of a Kerr Black Hole
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Undergrad In what formation does this simple block universe exist?
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Undergrad Lorentz transformation of the Gravitational constant
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Undergrad Simultaneity of accelerated clocks
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Undergrad Can Hypothetical Velocities Exceed the Speed of Light?
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Undergrad Precausality and continuity in 1-postulate derivations of SR
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Undergrad Is Erik's Paradox Challenging Our Understanding of Gravity and Light Speed?
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Undergrad Learn Physics with Eigenchris: Relativity & Tensors
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Undergrad Is There Experimental Evidence That Contradicts Time Contraction Predictions?
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Undergrad Gamma - A Minkowski Spacetime Diagram Generator
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Undergrad Finding Riemann Components: Packages & Solutions
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Undergrad Links between the Lorentz equations and SR/GR
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Undergrad Gravitational force equation derived from GR
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Undergrad Schwarzschild Radius vs Event Horizon: Black Hole?
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Undergrad Clock synchronization for ring-riding observers on rotating disk
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Undergrad Black Hole Waterfall Analogy & Light Speed
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Undergrad Special Relativity: Grokking for a Female Neurobiologist in her 60s
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Undergrad Andrzej Dragan's "Course on Relativity" Videos | YouTube Playlists
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Undergrad Index notation for inverse Lorentz transform
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Undergrad Ta-Pei Cheng's "Relativity & Cosmology" Course on YouTube
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Undergrad Calculate Ricci Scalar & Cosm. Const of AdS-Schwarzschild Metric in d-Dimensions
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Undergrad Help Deriving Geodesic Equation from David Tong Notes
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Undergrad Raising/Lowering Indices w/ Metric Tensor
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Undergrad Is there only one structure of the universe?
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Undergrad The Good Guy Fluctuation: Is Sheldon's Second Line Making Sense?
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Undergrad Relativity of simultaneity doubt
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Undergrad What would be the form of this world line?
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Undergrad What's the underlying frame of the Einstein's Field Equation?
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Undergrad Why Do Longer Wavelengths Go Slower in Glass?
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Undergrad Kinematic Decomposition for "Rod and Hole" Relativity Paradox
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Undergrad Time & Gravity in Rotating Faster Than Light?
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Undergrad Light Speed in Dense Medium: Explained
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Undergrad Transform Coordinates for Torus Metric in Wald
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Undergrad Unruh Effect (1+1)D: Understanding Equation 5.68
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Undergrad Show Maxwell's Eqns. on a Cauchy Surface (Wald Ch. 10 Pr.2)
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Undergrad Quasi-Static Change of Event Horizon Area
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Undergrad Determine Scaling Dimension of Field Theory
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Undergrad Minkowski Spacetime KVF Symmetries
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Undergrad Ex. 19 Gauge Fields, Knots & Gravity: Is Rotation Correct?
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Undergrad Yang-Mills Stress-Energy Tensor Explained
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Undergrad Space/Spacetime Metrics: Comparing Routes in PHY 101
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Undergrad Relative Simultaneity: Comparing 2 Incompatible Calculation Methods
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Undergrad Judge Original Time & Length Special Relativity
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Undergrad Because of length contraction, does absolute position exist?
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Undergrad Synchronous Frames/Coordinate Charts
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Undergrad Analyzing Dynamics in Constant Acceleration w/Rindler & Equivalence
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Undergrad Can Thinking Fast Slow Down Time in Relativity?
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Undergrad Coord. Time Vector Field: Schwarzschild vs Gullstrand-Painleve
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Undergrad What is the angular velocity of a satellite?
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Undergrad Lorentz Transf. of Complex Null Tetrads: Formula (3.14-17)
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Undergrad Michelson & Morley in Space-Time Diagram: Can't Make it Work
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Undergrad How things appear to an accelerated observer
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Undergrad Linear Accelerator Length Contraction
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Undergrad Gradient as vector vs differential one-form
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Undergrad Double Pulsar: 16 Year Study Validates Relativity
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Undergrad Global simultaneity surfaces - how to adjust proper time?
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Undergrad SR "Paradox" Thread Continuation: Tilt of Plates & Simultaneity
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Undergrad Time Dilation at Moving Black Hole Event Horizon
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Undergrad LIGO: Detecting Differences Less Than a Proton Length - How is It Possible?
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Undergrad Can I get a clarification on my misunderstanding of SR?
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Undergrad Equations Using Comma-Goto-Semicolon Rule in Curved Spacetime
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Undergrad Does light escape the Universe?
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Undergrad Kerr Metric Bibliography: Resources for Timelike Geodesics
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Undergrad Are Geometric Points Affected By Forces?
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Undergrad Time Dilation vs. Doppler Effect: Similarities & Differences
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Undergrad Is movement really relative or absolute?
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Undergrad Do Photons Attract Each Other?
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Undergrad Piecewise Functions in the Einstein Field Equations
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Undergrad Sufficient Conditions for Strong Cosmic Censorship
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Undergrad Can Placing Earth Between 3 Black Holes Slow Down Time?
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Undergrad Simplification of Dark Matter effects
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Undergrad What if Einstein equivalence principle is proven wrong one day?
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Undergrad Comparing Spacetime and Thermodynamic State Space Manifolds
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Undergrad Reference frame vs coordinate system
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Undergrad On the gravitational collapse of a massive shell
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Undergrad If one of the dimensions of our solar system contracted ....
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Undergrad Do we know how many meters long one second is?
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Undergrad What happens to time on the hands of a clock?
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Undergrad Understanding Special Relativity and Coordinates
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Undergrad Do Physicists Literally Believe We Move Through Time?
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Undergrad Universal Block Theory: Free Will
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Undergrad Could Tachyons Discredit Relativity?
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Undergrad Lorentz Invariance of Q in Weinberg: Justifying Transformation
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Undergrad Gravity: Force or Acceleration?
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Undergrad Normalization Constant in Einstein-Hilbert Action
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Undergrad Falling into a Black Hole: Blueshift Questions Explored
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Undergrad Do Fictitious Forces Still Matter in General Relativity?
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Undergrad Linearized Gravity & Metric Perturbation when Indices Raised
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Undergrad Variation of Four-Velocity Vector w/ Respect to Metric Tensor
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Undergrad Black hole inside of a black hole.... can it be done?
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Undergrad Clarification on Rindler coordinates definition
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