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.
High School Increase in PE due to increased mass
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High School Einstein's curvature vs. Newton's
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Undergrad Relativistic Calculus Books & PDFs | Free Resources
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Graduate Why is Killing vector field normal to Killing horizon?
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High School I cannot grasp simultaneity in Special Relativity
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Undergrad Do Black Holes Have Walls That Define Their Structure?
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Graduate Strange Tetrad Form of Einstein-Hilbert Action
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Undergrad How much time dilation is there within a contracting remnant
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Undergrad Can a Gravitational 'Gun' Accelerate Objects?
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High School Addition of velocities at speeds near C - any differences?
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High School Gravitational Wave Communication System
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High School Speed of Light & Time Dilation: Travel Distance in 1 Sec?
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Undergrad Pseudotensors in different dimensions
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Undergrad Vectors in Minkowski Space & Parity: Checking the Effect
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Graduate Is There a Proper Way to Define Energy in General Relativity?
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Undergrad Relativistic Particles: Reaching Absolute Temperature?
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Undergrad What Makes Ohanian's Approach to General Relativity Unique?
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High School SR & GR: Circular Relationship?
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Graduate Variation of Scalar Field Action: Polchinski's AdS/CFT Review
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Undergrad Curvature and Schwarzschild metric
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Undergrad Energy-momentum formula and deBroglie wavelength
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Undergrad Measuring Speed of Light Relative to Earth
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High School Question about Gravity according to GR: Earth Rises, Time Axis Curves
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Undergrad Center of Mass Motion: Velocity & Momentum
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Undergrad Flash open manhole cover paradox
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Undergrad If a rock fell 20,000 meters to Earth Question
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Undergrad Why Is a Violation of Causality a Problem?
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High School Faster than Light and wormholes
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Graduate Is There a Relativistic Version of Hooke's Law for Materials?
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Undergrad Confirming Covariant Derivative in Hartle's Gravity
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Undergrad Separating Overlapping Event Horizons: Theory
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Undergrad Length Contraction & Mass Increase in GR | General Relativity
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High School Energy and Matter: General Relativity Explained
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Undergrad Can a Geometric Animation Help Visualize the Special Theory of Relativity?
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Graduate Difference Between Covariance and Diffeomorphism Invarience
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Undergrad 4-momentum of a massless particle
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Undergrad How to fill the stress energy tensor for multi body systems
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Undergrad Proving Effects of Stress-Energy Tensor on Curvature
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High School Special relativity equation question
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High School Black Hole Firewalls: Explaining to John K Clark
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High School Why Light Experienced a Doppler Shift?
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High School Black Holes: Rotating vs Non-Rotating
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Undergrad Can Spacetime Be Visualized in a 2D Universe Like Flatland?
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Undergrad Alcubierre Drive & Bending of Spacetime
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High School Gravity Production: Electrons, Atoms & Magnetic Fields
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High School Common Time: Explaining Einstein's Definition
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Undergrad Derivative of Lorentz factor and four-acceleration
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Undergrad Negative Mass and Hawking Radiation
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Undergrad Understanding Time Dilation and Velocity: Debunking Common Misconceptions
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High School Geodesic equation in Minkowski space clarification
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High School Can FTL Travel be Achieved With Mass of a Photon?
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High School I understand time a little better
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Undergrad Can Wormholes Be Stabilized Using Negative Energy Density?
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High School Solving Special Relativity Equation: Rail Car Thought Experiment
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Graduate Black Hole Orbit Inequality: Explained
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Graduate GR to Naive Physics: Is it Possible?
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Undergrad Twin Paradox & Bondi K-Calculus: Who's Younger?
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High School Why do clocks experience time dilation in special and general relativity?
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Undergrad Measuring Light Speed Anisotropy
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Undergrad Does a metric exist for this surface?
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High School A is slower than B, B is slower than A. Where did it go?
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High School Is Special Relativity Universally Accepted?
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Undergrad Why isn't the Roemer type experiment a one way measure of c?
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Undergrad Gravitational Waves vs Universe Expansion Rate
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Undergrad Confusion about Frame Dragging
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Undergrad Einstein's Elevator & Tidal Gravity
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Insights The Schwarzschild Metric: Part 3, A Newtonian Comparison - Comments
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Insights The Schwarzschild Metric: Part 2, The Photon Sphere - Comments
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Undergrad Einstein's Pursuit of Unified Theory: Motivation and Observations
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High School Is the Double-Slit Experiment Validating Special Relativity's Influence on Time?
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Undergrad Alice Observes Bob at Event Horizon: DarkLink's Question
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High School Light Propagation: Doubts Answered Here
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Undergrad Explaining Relativity within 3 minutes
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High School Young Student Wins $250K Explaining Relativity
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Undergrad Why Does ds^2 Equal 0 in Metrics?
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High School Is the association of QG with BH a fake
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High School Understanding the Flow of Time: Relativity and Perception Explained
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High School Order of events and cause and effect
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Graduate Kerr-Bolt Spacetime: Derivation & Resources
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Graduate Divergence of (covaraint) energymomentum tensor
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Insights The Schwarzschild Metric: Part 1, GPS Satellites - Comments
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Undergrad Does the "space twin" benefit from length contraction?
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Undergrad Embedding Curved Spacetime in Noncurved Spacetime
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High School How To Consistently Explain Electromagnetism With Relativity
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High School Can We Really Stop Gravity by Altering Spacetime?
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Undergrad What is the true nature of distance in the context of space and time?
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Graduate Why is all the mass of a BH in the singularity?
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Undergrad Velocity Relativity: Solving a Complex Problem
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Undergrad Measuring Speed in Relativity - Einstein's Work Explained
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Undergrad Atomic Oscillations & Redshift in Sun and Earth
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Undergrad General Relativity & Quantum Theory: Where's the Limit?
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High School Why is the general theory of relativity is so complicated
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High School Black Holes as Gateways to Parallel Universes?
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High School Michelson-Morley Exp: Laws of Reflection Explained
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Undergrad Requesting clarification about metric tensor
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Undergrad Proof that Galilean & Lorentz Ts form a group
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Undergrad Coordinate singularity at Schwarzschild radius
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Undergrad Can Black Holes Create a Path for Lovers to Meet?
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Graduate Lorentz-Einstein law of motion for a point particle
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High School Metric Tensor and The Minkowski metric
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