Special and General Relativity Forum

Undergrad Time Dilation on a Merry Go Round

Graduate Newtonian description of Gravitational Potential Energy

Graduate Why do massless objects travel at c?

Graduate Raising and lowering indices of partial derivative

Graduate Is There a Logical Derivation for Einstein's Field Equations?

Graduate How Does Velocity Affect Time Dilation in Special Relativity?

Graduate Is it possible to see at high speeds?

Graduate Questions about gravity at relativistic velocities

Graduate Determining the density of a singularity

Graduate Ever-Present Vacuum: Light's Constant Velocity in Space

Graduate How Fast Does Time Elapse for Us From a Photon's POV?

Graduate The static Killing vectors in Kruskal coordinates

Graduate Solving the Curved Space Puzzle: e or c?

Graduate Superluminal Frame Adjustments?

Undergrad Relativistic Energy of a Ball: Understanding the Equivalence of Mass and Energy

Undergrad I've gone faster than the speed of light, havent you?

Undergrad The Fascinating Movement of Andromeda Galaxy: Impact on Mass and Time?

Graduate Is symetry across inertial frames purely theoretical?

Graduate Time dilation & symmetrical twin paradox variant

Graduate Energy discrepencies depending on frame of reference

Graduate Energy Conservation and Expansion of Space: A Thought Experiment

Undergrad How Does Bert Experience Time Differently While Traveling to Alpha Centauri?

Graduate Is Spacetime Real or Just an Idea?

Graduate Kronicker Delta, Levi-Civita, Christoffel and tensors

Graduate Why is the measure and finititude of c critical?

Graduate E=mc^2 can C^2 be described as a physical process?

Undergrad Question About The Expansion of The Universe And Time

Graduate What is the relationship between speed and coordinates in general relativity?

Graduate Drawing Spacetime Diagrams: Quick Solutions

Graduate Some Thought Experiments (simple ones)

Graduate Divergence theorem in curved space

Graduate Understanding Einstein Notation

Graduate How does the Stress Energy tensor relate to Noether's theorem?

Graduate Why does T^{α μ λ}A_μC_λ^γ = D^{γ α} represent 16 equations?

Graduate BRS: The FRW Dust with E^3 Hyperslices

High School Source of Gravity: What Causes Attraction Between Masses?

Graduate How much is Special Relativity a needed foundation of General Relativity

Undergrad Bullet from a moving train kinda

Graduate Tensor Calculus Questions: Christoffel, Riemann & Ricci Tensors

Graduate Trying to understand Special Relativity

Graduate Deriving Bending of Light from Maxwell's Equations

Graduate Error in special relativity Albert Einstein assumed

Graduate Divergence of product of killing vector and energy momentum tensor vanishes. Why?

Graduate How Do Geometric Shapes Influence the Path of Gravity?

Graduate Four vectors in complex notation

Graduate Can Rest Energy be Derived from the Stress-Energy Tensor?

Graduate Violating the principle of relativity

Graduate Calculating Four-Velocity and Four-Momentum Using Schutz's Method

Graduate Tensor operations, Maxwell's field equations

Graduate Printing mistake in A First Course in General Relativity?

Graduate Why does a perturbed geodesic obey the geodesic equation?

Graduate General Relativity - gravity self coupling

Graduate Where does all this spacetime curvature come from?

Graduate Is black hole collapse stopped by zero point motion?

Graduate Length Contraction: Does Size Change Affect Density or Radiated Energy?

Graduate Reconciling Light's Perspective: The Flaw in Relativity?

Graduate Arbitrariness in Special Relativity

Graduate The velocity of electron near speed of light?

Graduate CD: What Makes a Spacetime Geodesically Complete?

Graduate Show that the light velocity c is constant under Lorentz transformations.

Graduate Understanding solutions of GR

Graduate Time scales in Inertial Frames of Reference

Undergrad Intro to Basic Tensor Notation: I'm Confused!

Graduate An unusual view from Bridgman.

Undergrad How Does the Twin Paradox Affect Aging in Relativity?

Graduate Christoffel connection in Kaluza Klein Theory

Graduate Gravitational Wave Effect on Macroscopic Particles

Graduate What is Schutz's explanation for the space-time interval in general relativity?

Graduate Is Time Travel Comparable to Space Travel in Physics?

Graduate Circular Motion in SR/weak gravitational field limit

Undergrad Are photons affected differently by gravity?

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High School Special Theory of Relativity paper

Graduate Relativity of simultaneity implies a universe for each reference frame?

Graduate Relativistic Lagrangian of a Free Particle

Graduate How Can a Rocket Travel Faster Than the Speed of Light?

Graduate Neutral particle falling into a black hole

Graduate Does Energy Density Affect Gravitational Field Strength?

Graduate Does light travel at different speeds for different observers?

Undergrad Understanding Emergent Gravity & Spacetime: Resources for Laypeople

Graduate Time Dilation equation questions

Graduate Questions on Relativity & Cosmology Regarding Galaxies

Graduate Energy-Momentum Equation of a Particle

Graduate What is the connection between General Relativity and gravitons?

Graduate Hulse-Taylor versus Pluto-Charon

Graduate Get Advice on Publishing Physics Proof on Gravitational Time Dilation

Graduate Speed of light or speed of time?

Graduate Supplementary Reading for First GR Course: Schutz vs Hartle?

Graduate Electromagnetism, Relativity, Force, Space ?

Graduate C according to what reference frame?

Undergrad Orbiting around an object of variable mass

Graduate Speeds greater than the speed of light

Graduate Accelration & special relativity.

Graduate Riemann tensor in normal coordinates

High School What is the significance of the gravitational constant?

Graduate Energy of the gravitational field in GR

Graduate Solve Relativistic Lens Problem: Focal Length & Gamma

Graduate Twin paradox thought experiment

Graduate Exploring Einstein's General Relativity Equations

Graduate Numerical Simulations of General Relativity: 1000 Blobs