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 Coordinates in general relativity
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Graduate Space Time Diagrams? And lorentz Transformation?
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Undergrad What is the Definition of the Age of the Universe and How is it Determined?
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Graduate If time slows at speed of light
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Graduate What is the effect of curvature on the rigidity of a beam?
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Graduate Why is the stress-energy tensor symmetric?
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Graduate 4-acceleration of a vector in a linearly moving train
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Graduate Is it possible to exceed the speed of light?
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Graduate Studying GR from a mathematical point of view
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Graduate Massless charged particle in electrostatic field
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Graduate Understanding the Twin Paradox in Time Dilation
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Graduate Use of chain rule in showing invariance.
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Graduate General relativity without Differential geometry
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Graduate Does General Relativity Theory Account for Accelerating Frames?
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Graduate Time Dilation Observed in Relative Frames: A Simple Question
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Graduate Time dilation on fast massive objects
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Graduate Study buddies for 'A First Course in General Relativity' by B. Schutz
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Graduate Question about affine connection definition, Weinberg's Gravitation
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Graduate Time Dilation and Length Contraction
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Graduate Explaining Hawking Radiation & Its Effect on Black Hole Mass
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Graduate Why Is the Norm of the Tangent Vector Constant in Geodesic Equations?
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Graduate Question About World Lines and Asymptotes
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Graduate Distance role in simultaneity measurement
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Graduate Maxwell's equations and spacetime
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Graduate Proper time of an accelerated frame in a external gravitational field
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Graduate How does GR describe acceleration from non-gravitational forces?
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Graduate A question about an alternate version of the Alcubierre Drive
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Graduate Gauss-Codacci equation space-like foliation
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Graduate Magnetic field moving faster than speed of light?
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Graduate Understanding Rest Mass and Its Relation to Velocity in Special Relativity
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Graduate Inhomogeneous Timefield in Classical Mechanics & Relativity
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Graduate The physics meaning of the light cones tipping over
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Graduate Why Can't Flat Spacetime Connection Be Used in GR Covariant Derivative?
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Graduate How Does the Ricci Tensor Affect Tensor Equations in Wald's Problem?
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Graduate Gödel Metric Theses & Dissertations: 3 in Eng/Port, 1 in Portuguese
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Graduate Relativity Of Simultaneity Problem
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Graduate Attempting to learn tensor calculus
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Graduate Is Clock Synchronization Throughout a Time-Like Congruence Transitive?
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Graduate Incorporation of special relativity into general relativity
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Graduate Curvature of Spacetime and its Impact on the Speed of Light
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Graduate Special relativity, light direction and wave source.
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Graduate Does Time Slow Down for Objects Falling into a Black Hole at the Event Horizon?
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Graduate Defining negative energy of gravitational field
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Graduate Most proper time in Schwarzchild metric
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Undergrad What Happens to Mass as it Approaches the Speed of Light?
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Graduate Is there a known parametrization for time dilation in the FLRW metric?
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Graduate Twin paradox without acceleration - A different question
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Graduate Understanding Euclidean Group E(n) Elements
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Graduate Sign conventions in general relativity
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Graduate The Relativity of Motion: Is it Relative to the Object or the Rest Frame?
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Graduate About the Starship Titanic and joules/accelerations.
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Undergrad Gravitational pull on an object
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Graduate Tensors in GR and in mechanics
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Graduate Orbit eq. holds inside BH? - MTW sec. 25
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Graduate Why does gravity cause acceleration in modern physics?
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Graduate Space-Time Warpage and Kinetic Energy
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Graduate Mass is not the cause of gravity?
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Graduate Understanding the Twin Paradox: A Quick Question Answered
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Graduate How Does Relativistic Velocity Affect the Heat Capacity of an Ideal Gas?
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Graduate Relativity and particle collision.
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Graduate If all space-time already 'exists' then
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Graduate Contravariant and Covariant Vectors
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Graduate Cosmological redshift as kinematical Doppler effect
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Undergrad Mass-Energy Conservation: E/m=c^2
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Graduate Curvature of Space: What is it?
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Undergrad Why no electric field from a current in a wire? Length contraction.
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Graduate Unraveling the Michelson-Moorley Experiment
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Graduate Twin paradox without accelerative frame.
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Graduate Does Relativistic Motion Affect Time Perception on Moving Trains and Platforms?
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Graduate Tensor Densities: Coordinate Independent Definition
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Graduate What Would Happen w/ Infinite Light Box?
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Graduate Why don't black holes look like neutron stars to outside observer?
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Graduate Are Killing Vectors the Key to Solving Complex Equations?
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Graduate Do the distance between two objects contract in length contraction
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Graduate Stress-energy tensor for a single photon
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Graduate On the nature of the infinite fall toward the EH
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Undergrad Objects Moving Close to Light Speed: Mass Difference?
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High School Gravity Analogy: Why Does Moon Orbit Earth?
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Graduate Faster than the speed of light
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Graduate Can Warp Speed Violate Causality? The Debate Among Physicists
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Graduate Realistic black hole in Friedmann universe
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Graduate Proof for Closure of Vector Addition - Can You Help?
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Undergrad Question about Einstein's train thought experiment
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Graduate Confusion about special relativity
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Undergrad A couple basic spacetime questions.
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Graduate Implications of constant speed of light in all inertial frames
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Graduate General Relativity: Contracting Indices
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Graduate Unveiling the Formation of Black Holes: A Relativity Perspective
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Undergrad What space contracts in Special Relativity?
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Graduate Finding inverse metric tensor when there are off-diagonal terms
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Graduate Tensor Rank vs Type: Explained
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Graduate Spacetime 'loaf' according to Fabric of the Cosmos
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Graduate Solving Confusion about Hans Ohanian's One-Dimensional Gas Example
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Graduate JollyOlly's book 'A Roller Coaster Ride through Relativity'
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Graduate Null Killing Vector & Conserved Quantity - Physics Forums
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Graduate Tensors and General Relativity
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Graduate Unraveling Dirac's General Relativity Equation
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Graduate Transformation to local inertial frame
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Graduate Time Dilation: Current vs Massless Universe
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Undergrad To Saturn at (nearly) the speed of light
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