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 Density of an object in Relativity
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Graduate Zeno's 4th Paradox & Quantized Space: SR & GR Effects
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Graduate What are the representations and generators of Lorentz and Poincare Groups?
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Black Holes: B. Green's The Fabric of Cosmos
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Undergrad How Does General Relativity Challenge Newton's Elliptical Orbits?
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Graduate Question about the GR gravitational redshift experiment
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Graduate Relativity of Simultaneity: Train-Platform Experiment
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Graduate Einstein GR is dead, viva Einstein-Cartan Gravity?
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Graduate Geodesic equation via conserved stress tensor
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Undergrad How Does Stephen Hawking's Theory Connect Time and Mass?
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Undergrad What is the difference between time dilation and length contraction?
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Graduate The logic of information travel.
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Graduate Parallel light beams converge?
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Graduate Spacetime, gravitational force
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Undergrad Understanding the Mass-Energy Equivalence Concept behind E=mc2
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High School Help Explain Electromagnetic Induction Paradox
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Graduate Question on weak field approximation
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Graduate Does the formation of a black hole start with QM?
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Undergrad Is the concept of relativity portrayed accurately in Ender's Game?
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Undergrad Why can't light escape black holes?
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Graduate Acceleration from curved spacetime
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Graduate Gravitational Collapse of a Cylinder
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Graduate Mass of Light: Does It Have Mass & Impact Speed?
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Graduate Uncovering the Truth Behind the Founders of Relativity: A Comprehensive Analysis
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Graduate Improper Lorentz transformation
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Graduate How does QFT address the problem of Locality in Quantum Entanglement?
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Graduate Mass of fuel would ALSO increase as spaceship comes near the speed of light
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Undergrad Increase of mass and legth contracts with speed?
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Graduate The experience of the infalling body of an EH
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Graduate A tachyon is a hypothesized particle that has imaginary mass
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Graduate What would actually be observed during Lorentz contraction?
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Graduate Solving Tensor Confusion: Electromagnetic Field Tensor
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Undergrad Einsteins Vs Newtonian Solution
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Graduate Does GR imply small Lorentz violations in practice?
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Graduate Gravity effect on observed speed of light
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Graduate If correct: a catastrophe in the Lorentz transformation
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Graduate SR and QED: How Particles Interact with Time Dilation
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Graduate Reissner- Nordstrom metric- weak energy condition
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High School Michelson–Morley experiment: Did it disprove the existence of ether?
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Undergrad Help understanding a relativity train
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Graduate Why does General Relativity break-down at Plank Temperature?
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Graduate Searching for Lecture Notes on Lie Groups from Physics Course
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Graduate Perihelion precession of Mercury
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Graduate Expansion, redshift, energy loss
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Undergrad Understanding Proper Time in Einstein's Special Theory of Relativity
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Graduate Why Are the Terms Squared in the Lorentz Transformation?
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Graduate Reconciling Energy Losses on Fast Moving Batteries
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Graduate Where can I find a covariant approach to Poisson brackets?
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Graduate Constatly accelerating spacecraft
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Graduate Whose Clock Slows Down in Relativity?
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Graduate Is Einstein synchronization trivially true?
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Graduate Freely Floating Observer Crosses Event Horizon
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Graduate Faster than the speed of light during acceleration?
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Graduate Calculating LHC Forces on a Proton
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Graduate Does light itself bend spacetime?
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Undergrad Photon Speed in a Wave: How Does It Work?
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Graduate What are the best lines of reasoning for why nothing can travel faster than c
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Graduate Understanding Time Dilation and Its Implications for Time Travel
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Graduate Even light would take an infinite time
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Graduate Can Light Speed Ever Be Reached in the Universe?
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Graduate Affine parameter Schwazschild
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Graduate 2m car near lightspeed fall into 1m hole?
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High School I just wanted to know what exactly is a wormhole?
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Graduate Christoffel symbols vanishing on a curve
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Graduate Reissner-Nordström metric for magnetic fields
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Graduate Solving Twin Paradox: Earth's Motion in Astronaut's Frame
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Undergrad Small problem with getting to E=mc^2
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Graduate Covariant derivative of an anti-symmetric tensor
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Graduate Looking to understand time dilation
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Graduate What happens if an Alcubierre warp drive fails?
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Graduate Equivalence Principle: Questioning Inertia & Gravity
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Graduate Speed Limit of causal influence
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Graduate Why Are Electric Field Lines Straight Around Relativistic Electrons?
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Undergrad From what frame of reference does the Earth orbit the sun?
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Graduate Does the Relativistic Speed of Soap Bubbles Affect Their Shape?
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Graduate Timelike and lightlike/null vectors
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Graduate Confusion wiht Curvature Tensor
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High School Faster than the speed of light
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Graduate What is the formula for gravitational redshift and its time derivative?
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Graduate How does light bend under gravitational field(gravitational force), why?
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Graduate Tachyon Properties: Time, Length & Special Relativity
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Graduate Einstein's Field Equations and Poisson's Equation
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Graduate Relativity of simultaneity and cosmology
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Graduate Calculating Warp Speeds and Travel Times Using Alcubierre Warp Drive
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Graduate Resolving the Clock Paradox: The Hafele and Keating Experiment
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Graduate Killing Vector Solutions for General Relativity Metric | Self-Study Tips
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Graduate Comparing Forces in Different Reference Frames: Impact on Time and Magnitude
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Graduate Mass addition due to gravitational acceleration
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Graduate Interpreting Gullstrand-Painlevé Coordinates
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Graduate Solving Light Clock Question: Calculations for a Relativistic Light Clock
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Graduate Could gravity be described as distance compression?
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Undergrad Mass Motion & Time: Acceleration & Momentum Impact on Measurable Time
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Undergrad Scalar Curvature, R, for Dummies
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Undergrad A noob asking about relativistic kinetic energy.
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Graduate Time Dilation or Mass Dilation
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Graduate I can't understand time dilation in absence of absolute motion.
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Graduate How Does the Principle of Equivalence Lead to Gravity Curving Space?
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Graduate Manipulating Space-Time with Lasers
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Graduate Relativity of Simultaneity and wave/particle duality.
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Graduate General relativity matter warps space
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