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 Frame drag to accelerate spaceships?
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Undergrad Is the speed of light the same for all observers?
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Graduate Alcubierre Drive: Constant Velocity or Acceleration?
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Graduate Can Black Holes Truly Exist for Earth Observers?
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Undergrad Understanding Time in Space-Time for Beginners
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Undergrad C = √ (E/m) We can determine c
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High School E=mc^2: What is Mass & Matter?
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Graduate What is the significance of the factor 8π in the Einstein Equations?
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Undergrad Do physics professors still misunderstand Einstein?
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Graduate Time Dilation Explained: What About Light Speed?
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Graduate Speed of light measured in/by a parallel frame moving at c
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Graduate What is the maximum entropy a system can have based on its energy and size?
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Graduate Question on hyperbolic rotation
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Basic Lorentz Transform widget
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Graduate What prevents mass-less gauge bosons and gravity going faster than c?
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Graduate Would wormholes transmit gravity, if so how?
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Graduate Radial length contraction = mass anisotropy?
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Graduate Exploring the Role of Perfect Fluid Solutions in General Relativity
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Graduate Length contraction on charged wire
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Graduate Defining Emitter vs Observer for Schwarzschild Metric
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Graduate The concept of inertial mass from Newton to Einstein
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Graduate Is coupling G actually a constant of nature or it can vary?
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Graduate Gravitational Pull Limit Across Distance?
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Graduate What Causes Consistent Measurement of Light's Speed Despite Relative Motion?
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Graduate Linearised gravity contraction
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Undergrad Relativity: Observer's Perspective - Am I Getting it Right?
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Graduate Lorentz Contraction ?s and Implication
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Graduate Contracting Tensors: Why G^αβ?
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Graduate Is There an Error in the GR Problem? Join the Discussion!
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Graduate How Liouville's theorem applies to gravitationally deflected light?
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Graduate Gravitational Time Dilation and Twin Paradox ?'s
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Graduate Why do photons have momentum yet no mass?
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Graduate The Pioneer effect and Spacecraft flyby anomaly
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Graduate A few questions about light and relativistic effects
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Graduate Antisymmetric and symmetric part of a general tensor
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Graduate New paradox in special relativity?
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Graduate Special relativity from the frame of refrence of photon
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Graduate Mathematics of MTW gravitation.
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Graduate A diff-invariant 1+1d QFT with divergent central charge?
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Graduate Simple question on Gravito - Magnetism inside Shell
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Undergrad Can you explain how time is not constant?
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Graduate G's Guide to GR on Banach Spaces
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Graduate SR Effects on Interstellar Probe: Can Messages Return in 50 Years?
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Graduate Power Series from MTW 19.1: Explained?
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Graduate Understanding Null Energy Condition & Friedmann Equations
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Graduate Do GPS Clocks Really Run Slower Than Earth Clocks Due to Time Dilation?
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Graduate 19th-century constraints on properties of the aether
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Graduate Gravitation in N+1 Dimensional Flat Space
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Graduate I know that nothing can exceed the speed of light, but
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Graduate Unraveling the Mystery of Inertia: The Search for its Origin
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Undergrad Why is the theory of relativity a theory?
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Graduate A special point in special relativity
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Graduate Experiment on mass of a photon
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Graduate Gravity & Magnetism: How Mass Interacts with Space-Time?
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Graduate No definite viewpoint for the accelerating traveler?
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Graduate Why is the EH of a BH considered to be expanding at c?
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Graduate Solving a Momentum Question: Struggling with Simple Cons?
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Graduate Is Dingle's Critique of the Lorentz Transform Valid?
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Graduate Does Relativistic Mass Affect Weight and Gravity?
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Graduate How to manipulate the determinant of metric tensor?
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Graduate Length contraction problem of right angled triangle
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Graduate Implications of the statement Acceleration is not relative
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Graduate Does the relativity of simultaneity imply a sort of determinism?
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Graduate Lorentz Transforms: Question About Inverting LT Frames
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Graduate What do we mean by pure gravity
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Graduate What is the Physical Meaning of Gravitational Wave Detection?
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Graduate List of Special Relativity Paradoxes.
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Graduate A problem from Sean Carroll's about Killing vectors
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Graduate Conflicting Transverse Doppler Shift Equations?
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Graduate Kinetic Energy Transfer in Relativity: A Puzzler
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Graduate Twin clocks-is it acceleration?
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Graduate Why Does Rotating the Michelson-Morley Apparatus Change the Time Delay?
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Graduate Cherenkov Radiation in Vacuum: Can Superluminal Particles Emit Light?
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Graduate Light energy, just like time, is relative?
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Graduate Gravity is a limitless supply of energy to inflaton field
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Graduate Does the Starting Point Influence Time Dilation Observations?
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Graduate Resolving the Twin Paradox in Relativity
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Graduate Varying with respect to vierbein
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The Secrets of Time Travel to the Past: A Comprehensive Guide
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Graduate No privileged frame of reference
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Graduate Definition of Inertial Frame in GR: Math Explained
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Graduate Varying determinant of a metric
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Graduate Contracting Tensors: g^{\mu\nu}g_{\mu\nu}=4 & T
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Graduate Relativity Paradox: Is Moving at Speed of Light Possible?
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Graduate Does a free falling charge radiate ?
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Graduate Killing Vectors (question on Problem)
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Graduate Time Dilation in Spinning Cylinder Room: Can We Break the Speed of Light?
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Graduate Is the Twin Paradox a Logical Mistake in Time Dilation and Relativity?
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Graduate Can Metrics Reveal Flat Spaces Without Computing the Riemann Tensor?
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Undergrad Can Matter Waves Travel Faster Than Light?
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Graduate I'm A Beginner: Relativity & The Human Mind
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Graduate Theory of Relativity VS. Relativity to placement
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Graduate Gravity question: force vs spacetime curvature
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Graduate Two observers. One closer to an event horizon.
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Graduate Different Clock Rates Throughout Accelerating Spaceship
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Graduate Is Poincare wrong about no preferred geometry?
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Graduate If I acclerate and observe a photon, do I see the spin of the photon changing?
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Graduate Where do you think a black hole leads to, or what is inside of one?
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Graduate Light clock with spaceship moving vertical at .99c
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Graduate Faster velocity than the speed of light?
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