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 Geometry and long space travel
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High School The Impossible Quest: Kicking Machines in Space to Reach Light Speed
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Graduate Positive Definition of Space & Time for Layman
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Graduate How does the Einstein tensor contribute to the equations of motion in 4d?
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Graduate Einstein simultaneity train thought
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Undergrad Time dilation, mirror question
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Graduate Causes that led to discovery of GR
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Graduate Vaidya/Lemaitre-Tolman metrics
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Graduate Cuurent statuses of theories of gravity
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Graduate Determining Speed of Muons: Exercise Problem
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Graduate How Can Energy Density Be Calculated from a Metric in General Relativity?
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Graduate Gravitational index of refraction
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Graduate Comparing Hartle, Schutz, and Ohanian for GR Beginner
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Graduate Still learning about tensors
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Graduate Mass to energy conversion at fraction of speed of light
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Undergrad Why can't we time travel in backward?
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Graduate Time-like Intervals and Causality
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Graduate What is the Belt Paradox in Interferometrics Cart Phenomenon?
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Graduate Camera near the speed of light
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Graduate Can two metrics be superposed?
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Graduate General Relativity at the microscopic level
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Graduate When the Schwarzschild radius is inside the star
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Graduate Twin and ladder paradoxes help really bugging me
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Graduate Pioneer Anomaly Solved - Reflective Thermal Model
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Graduate Deriving EFE from the Bianchi Identities
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Graduate How do I calculate time dilation due to acceleration in SR please?
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Undergrad Gravity and other fundamental forces
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Graduate Covariant and Contravariant Kronecker Delta operating on Tensor
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Graduate Does gravity have effects through time?
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Graduate Question about static spacetime
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PF Logo Contest: Theory of Relativity
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Graduate Deriving the Schwarzschild Metric
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Graduate Difficulty in learning tensors
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Graduate I forgot what this is called and what is is written out.
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Graduate Concerning the importance of preffered time coordinates
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Graduate GR Class: Is it Enough to "Know" General Relativity?
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Undergrad Relative Velocity: How Newton & Einstein Used Light Speed
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Undergrad Two Balls in Space: An Observer's Perspective
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Graduate Do Gravity Waves Influence Quantum Particles and Dark Matter?
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Graduate Relativistic Momentum Derivation Help
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Graduate Lorentz Factor: Significance & Consequences
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Graduate Cygnus X-1 is nearly extremal.
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Graduate Need help resolving this paradox with time dilation
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Graduate Einstein's Train and Lightning Bolt Simultaneity Situation
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Graduate Tensor transforming law problem / metric-delta contraction
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Graduate Einstein Tensor Divergence Proof: How to Show it is Divergence-Free?
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Graduate What would the universe be like if c were not uniform
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Undergrad Understanding Einstein's E=mc^2 Theory
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Undergrad Gravitational Force on a Body: Is it Absolute?
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Undergrad Black Hole Gravity: Mass vs Distance
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Graduate Derivation of Relativistic Momentum WITHOUT using Relativistic Mass?
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Graduate Gravitation and Space Time warps
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Graduate Rocket-man measuring speed of light
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Undergrad Relativistic Momentum Help With Equation Reduction
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Graduate Can Exceeding the Speed of Light Reverse Cause and Effect?
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Graduate Twin Paradox with no asymmetry
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Graduate Time travel by going fast in a spaceship: questions
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Undergrad Check My Relativity Video for an Engineer | Answer His Question on Light's Speed
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Graduate Lorentz contraction in other dimensions?
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Graduate The General Relativity Metric and Flat Spacetime
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Graduate Godel and The Philosophy of Special Relativity
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Undergrad Calculating Solution to Sketch: Help Needed
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Graduate Can we have a dedicated thread for FAQ requests?
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Graduate Bullet-hole Paradox: Train Frame & Stopped Train Measurements
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Graduate Find Poincare Transform for Momentarily Co-Moving Reference Frame
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Graduate Can We Manipulate Space-Time with Different Types of Energy?
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Graduate Michelson-Morley experiment(s)
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Graduate Two different velocity variables in relativistic momentum?
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Undergrad Magnetism to test for movement?
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Graduate Not Understanding Time Dilation.
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Graduate Creating a Target with 3 Photons in SR Propagating Sphere of Light
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Graduate What is the correct condition for the winning pulse in special relativity?
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Graduate 5D Space,Higher Dimensions etc.
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Graduate Completely General Lorentz Transformation
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Graduate Understanding Time Dilation: The Paradox of Aging in Outer Space
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Graduate Space-Time Curvature: Causes & Movement
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Graduate Not Understanding Time Dilation - mk 2.
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Graduate Why Is K-Calculus Confusing in Understanding Special Relativity?
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High School Unraveling the Mystery of E=mc2: Speed of Light
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Graduate How is an electric field induced in a wire loop moving through a B field?
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Graduate Energy-momentum of gravitational waves
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Graduate Is time dilated if gravity is pulling equally in all diections?
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Graduate Backreaction of accelerated motion on spacetime curvature
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Graduate More thoughts on the twin paradox. One persons view has to be an illusion?
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Graduate Parallel Projection of 3-space unto a plane at c.
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Graduate How Does the Poincare Group Relate to Special Relativity and Reference Frames?
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Why is the Tortoise Coordinate Called That?
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Graduate Can light have lateral momentum, and if so, as a particle or wave or both?
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Undergrad Possibly simplistic question about massive moving objects
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Graduate Performing a Global Boost in General Relativity: A Brief Guide
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Graduate Lorentz Transformation Derivation
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Graduate Help resolving absolute motion paradox please.
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Graduate Why is the light clock accurate?
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Graduate Understanding Special Relativity: Time Dilation and Space Contraction Explained
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Undergrad Is Time Travel Possible and How Does it Work?
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Graduate Deriving GR from maximum power
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Graduate Can Negative Time Alter Our Understanding of Physics?
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Graduate Does spinning a massive sphere create extra gravity pull?
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High School The C is the speed of photon ( light ) ?
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Graduate Length and Distance Contraction
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