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 Does GR reduce gravitational force on a planet's surface?
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High School What causes magnetic repulsion and attraction?
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Graduate Do Photons Experience Time Dilation and Redshift?
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Graduate De Sitter Vacuum: Is it the Only Positive CC Solution?
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Graduate What is the Meaning of r in Schwartzschild Metric?
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Graduate Interactive Minkowski diagrams tool
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Undergrad Minimum energy to accelerate a mass?
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Graduate Time Dilation happens on moving frame - but which one?
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Graduate Do Moving Observers See Simultaneous Flashes from Stationary Light Sources?
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Graduate Is Photon Mass a Reality Despite Its Momentum and Energy?
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Graduate Trouble understanding 2-side BH Penrose diagram
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Graduate Frame dragging slowly rotating shell
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Graduate Shapes of black holes (energy talk)
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Speed in General Relativity (I found the picture)
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Graduate Is Gravity Just a Byproduct of Time?
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Graduate Flat Donut Universes & Special Relativity
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Graduate Understanding Tidal Forces on a Sphere: Do They Also Act Horizontally?
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Graduate "Speed limit of light" analogy
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Graduate A particle near an event horizon
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Graduate Derivation of Relativistic Doppler Shift: Step-by-Step Guide
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Graduate G Force derived from G potential
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Graduate Computer simulation of ray of light passing near massive object
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Graduate Forming Spherically Symmetric Metric: Math Analysis & Omitted Steps
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Graduate Questions about Properties of the Godel Metric
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Undergrad If the speed of light is constant in any inertial frame
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Graduate Can Speed Exceed the Speed of Light in General Relativity?
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Graduate How Does the Twins Paradox Apply to Clocks in a Closed Room?
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Graduate Light Speed Paradox: Xavier's Torch on X
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Undergrad Relative movement and agreement about an object's speed
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Graduate Length contraction, train along a line, and a detector
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Graduate Guy falling into black hole sees end of universe
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Graduate Lorentz Factor Expansion: Analytic Continuation Value
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Graduate How do we eliminate the existance of luminiferous aether?
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Graduate Two Objects at the Speed of Light
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Graduate "Triplet Paradox" involving a single one-way trip
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Insights Adding Relativity to Gravity Animation | edguy99
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Graduate How Does Extreme Rotation Affect Space-Time Around Massive Objects?
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Undergrad Is Time Dilation Making Astronauts Younger in Space?
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Graduate Detecting matter falling into a Black Hole
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Graduate Why Does Gamma Apply to All Object Components?
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Graduate Radiation Far Zone Expansion - 65 Characters
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Graduate Lifespan of a black hole as measured by different observers
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Graduate Is General Relativity Incomplete? What Is It?
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Graduate Black hole electron: How can we drop the geodesic equation?
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Graduate Lorentz Transformation Equations, time transformation
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Graduate Palatini Formalism Derivations & Ideas: Holst Action
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Undergrad How Long Does a Photon Think It Takes to Travel from the Sun to Earth?
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Graduate Why Gravitational Waves are Decomposed in Spin Weighted Spherical Harmonics
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Graduate Rovelli Quantum Gravity: Clarification on Symplectic Forms & Hamiltonian
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Graduate Gravity Waves from Earth: Detecting from Orbit
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Graduate What is wrong in D.Y. Gezari's paper about speed of light?
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Graduate Cosmological Redshift: Calculating Wavelengths
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Graduate Relative Velocity in Lorentz Transform: Agree or Disagree?
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Graduate General Relativity and Quantum Cosmology
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Graduate Where do CTC's come from/ How do I interpret these tensors?
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Graduate Gravity & Force From Black Holes: How Do Photons Escape?
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Graduate Relativity Expert on Startalk Podcast: Interstellar & Near Light Travel
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Undergrad Gravity in General Relativity and Earth's Surface
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Graduate Sun's Shrinkage due to Gravity: Visualize the Impact
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Graduate Geodesic Deviation in 2D: Is There Directional Dependence?
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Graduate Does light receive a spacetime curvature upon refraction?
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Graduate Speed of Light is a Property of Massless Particles or Space?
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Graduate The Speed of Light: Is a Second is a Second is a Second?
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Graduate Have we derived the Gravitational constant via General Rel?
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Graduate Ans. Speed of Light: Clarifying Experiments & Processes
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Graduate Can we experimentally detect the weight of energy?
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Graduate Directional independence of motion in Lorentz Transformation
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Graduate Observing Objects Near Light Speed: Time Dilation or Reality?
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Graduate There is a didactic gap in the explanation of P.O.R
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Graduate Understanding Rindler Coordinates for Engineers
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Graduate Interpretation of the Michelson-Morley experiment
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Graduate E=mc^2, Gravitational Potential & Energy Balance
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Graduate How are space-like intervals important?
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Graduate Weight Loss Physics Before SR: How Was It Understood?
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Graduate Question about tensor notation convention as used in SR/GR
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Graduate How Does Gravity Affect Pressure and Curvature in Space?
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Graduate Mathematical relation between dipole moment and frequency?
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Graduate Relativity: Energy in AC Circuits & Mass Momentum
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Graduate Twin Paradox (again(again(again )))
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Graduate What Theories Explore the Deeper Meaning Behind the Constancy of c?
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Graduate Can You Travel Faster Than Light According to Physics?
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Graduate What is the relationship between spin connections and tetrads on a 2-sphere?
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Graduate Speed of Light Aboard a Spaceship: An Overview
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Graduate Is there any experimental evidence against preferred frame?
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Graduate Time dilation: speed relative to what?
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Graduate Does spacetime imply fatalism?
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Graduate Derivative of metric with respect to metric
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Graduate Parallel transport to explain motion of light near black hole?
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Graduate Lifetime of Universe: Limits & Expansion Explained
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Undergrad Space-Time Singularity: What, How, and Is It Possible?
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Undergrad How Do Black Holes Acquire More Mass Than Other Objects?
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Graduate Contravariant & Covariant Vectors: Electric Field Case
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Graduate Relativistic generalization of Larmor fomula?
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Graduate Equivalence principle and time dilation
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Graduate Affine parameterization of a light ray
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Graduate Schwarzschild vs vs Alcubierre & Time Dilation
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Undergrad How can (1/2)mv^2 and p^2/2m give different results?
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Graduate What is the physics behind GR's diffeomorphism invariance?
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Graduate Relativistic Kinetic Energy as a solution to a DE
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Graduate Plugging Godel Metric's Line Element into Software for Covariant Einstein Tensor
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