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 Relativistic relative velocity
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Undergrad Symmetry of Liénard-Wiechert Potentials
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Graduate Time Dilation Test: No Deviation From Relativity Predictions Found
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Undergrad Test the Speed of Light: Traveling Toward a Strobe Light
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Graduate Four velocity with the Schwarzchild metric
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Undergrad Do most physicists believe time flows?
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Undergrad Thought Experiment Contradiction: Find the Answer
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Graduate How these notions relate to the usual SR approach?
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Undergrad Spinor Representation of Lorentz Transformations: Solving the Puzzle
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Undergrad Applications of Wedge-Product and Differential Forms
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High School Relativity Scenario Help: A Seeing B's Line Shorter or Longer?
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Undergrad Could it be that the photon has a non-zero mass?
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Undergrad Relativity of simultaneity, time dilation misunderstanding
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Undergrad Path of Photon in Free Falling Lift: General Theory of Relativity Q&A
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High School Second Opinion Needed: Time of Light Pulse Arrival
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High School What is the Worldline of a Quantum Particle Before and After State Reduction?
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Undergrad Constructing Vector in Another Basis
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Graduate Gravity of a Light Pulse: Relation to E/c^2
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Undergrad Calculating Gravitational Mass of Compressed Gas Cylinder
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High School Math Help for Advanced Simulation of Twin Paradox
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Undergrad Energy contained in fuel in speed of light ship
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Graduate How to Integrate the geodesic equations numerically?
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Undergrad Particle accleration under gravitational waves?
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High School An Interpretation of the Geometry of Space-Time Inside a BH
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Undergrad Query on basic mechanics of Special Theory of Relativity
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Undergrad Velocity Addition & Relativity of Simultaneity
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Graduate Show Spherical Symmetry of Schwarzschild Metric
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High School How Can Time Derivatives Be Taken in GR and SR with Orthogonal Basis Vectors?
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High School DeltaT of clocks at endpoints of a rocket post acceleration
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High School Visualizing GR Geometry: Software for Einstein Field Equations
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Undergrad "General Relativity" by Wald -- question
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Undergrad Help with infinitesimal transformation to finite transform
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Undergrad Force applied by a moving object
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High School Why should spacetime/manifold be smooth?
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Undergrad Gravity: Contraction of Space?
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High School Spacetime same size during Big Bang up to now?
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High School Another question about relativity: the force
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High School GR vs quantum vacuum Lorentz invariance
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High School Question about GR and Quantum gravity
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High School Michelson-Morley Exp: Surprise of Result
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Graduate Finding geodesics using the squared Lagrangian
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High School Einstein relativity is invalid
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High School Alien Perception of Time: Can Time Go Backwards?
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Undergrad Relativistic charged particle in a constant uniform electric field
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Graduate Alien Perception of Time - Can Time Go Backwards?
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High School Time Dilation, Interstellar Travel, and "The Forever War"
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High School Is Lorentz contraction explained by space time diagram ?
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High School Special Relativity: What Time is it?
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Undergrad Consequences of Rotating Objects C on Coil A Frequency
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Undergrad Error in Lorentz Invariant Integration
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High School What Would Happen in a Universe with Negative Curvature of Spacetime?
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High School Relative Speed of 2 Beam Lights: Is it C or Zero?
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Graduate Hypermomentum & Belinfante-Rosenfeld: Same Object?
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High School What if gravity wasn't geometry—would conservation laws still hold?
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High School Does gravity change the permittivity/ permeability of vacuum?
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High School The Relationship Between Gravity and Time
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Graduate Inertial Frames: GR to SR | General Relativity
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High School What is the Correct Method for Deriving p = γmv?
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Undergrad Farthest distance a human can travel from Earth in a life
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Graduate Find the determinant of the metric on some graph
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Undergrad Twin Paradox: Comparing Lengths of Moving Rods
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High School Universal Compass Speedometer Redux: Relativistic Doppler?
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Undergrad Tidal forces on a spring-mass system
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Undergrad Maximize dτ w/ Schwarzschild Metric: Two Masses, m & M
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High School Warping Spacetime: Classical Physics & Relativity
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High School Light Bending on Single Point: What Happens?
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Undergrad What are the 2D Translational Killing Vectors in Polar Coordinates?
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High School Mass-Energy Equivalence: Does E=mc2 Apply in Systems at Rest?
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Undergrad Shining a light beam back -- relativity
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Undergrad Is it really possible that relativistic mass tends to reach infinity?
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Undergrad Crossing an Event Horizon: My Experience
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High School What is the mathematical expression for manifold duplication in Many Worlds?
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Undergrad The Shapiro delay and falling into a black hole
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Undergrad Q re equilibrium energy relationships for a mixture
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Undergrad Comparing Electric Field Intensity in Moving Systems F & F
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High School What is the evidence that there is gravitation?
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High School What is the difference between the two 4-momenta in photon-electron collisions?
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Undergrad How Does the Rain Frame Affect Perception of a Ball Falling Off a Cliff?
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Undergrad Question about derivation of lorentz transformation
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Graduate Where is Potential Curvature Stored in GR?
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High School Limitations of Light Speed and Detecting Black Hole Collisions in the Universe
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Undergrad Time Dilation: Hafele-Keating Experiments
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High School LIGO: Detecting Gravity Wave Sources
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High School Gravity: Why Objects Attract Towards Earth | Einstein
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Undergrad Alcubierre Warp Drive: Arrival Problem - Fact or Fiction?
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High School Mass of a capacitor plate
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High School How Do Proper Acceleration and Gravity Affect Time Dilation in Free Fall Orbits?
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Undergrad Average Luminosity of Moving Body: A Relativistic Analysis
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Undergrad Disproving Velocity's Effect on Space-Time
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Undergrad Change of special relativity formulas?
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Undergrad Path of Light in Curved Spacetime with Metric g
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High School Does a moving bar magnet create charges?
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High School Raisin bread model of space-time
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Undergrad Riemann tensor in 3d Cartesian coordinates
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Undergrad Is Time Merely the Progression of Energy Toward Equilibrium?
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Graduate Flat s-t 4d killing vectors via solving killing equation
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Undergrad Test of Special Relativity Confirmed - ScienceMag.org
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Undergrad Understanding the Concept of Momentum Flux in Stress: Explained and Demystified
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Undergrad Hubble's Law, Friedman Models & Spacetime Curvature Explained
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High School Different Frames of Reference: What's True?
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