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 What Does Distinguished Really Mean in Technical and Legal Contexts?
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Graduate How does a large mass warp space?
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Graduate Time Travel Question (from A Briefer History of Time )
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Graduate Relativistic mass affect weight of an object?
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Graduate Sticky for beginners to draw a spacetime diagram
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Graduate Can Unknown Physics Explain the Singularity of a Black Hole?
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Graduate Rest Frame of a Photon - FAQ by Forum Members
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High School Did Einstein Disagree With Black Holes?
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Graduate What Is the Best Way to Teach Special Relativity?
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Undergrad Falling Into a Black Hole: Time Dilation & Hawking Radiation
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Graduate Resolving the Black Hole Paradox: A Perspective from Different Reference Frames
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Graduate Debunking "c-decay": History & Facts
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Graduate Gravitational waves, electromagntic waves and charged particles
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Graduate Throwing Balls on a Large Planet: GR Approximation Problem
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Undergrad Photon Patterns in Space: Could They Exist?
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Undergrad Particles w/ 0 Inertial Mass Traveling Faster than Light?
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Undergrad Looking for more accurate energy-momentum transformations for photons
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High School Do we understand what the Universe looks like for a photon?
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Undergrad Reading suggestions about the "nature of time"
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Undergrad Transverse inertial motion of rockets in acceleration
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Graduate Describing a Rotating Vector with Changing Angular-Velocity
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High School Is the Twin Paradox Really a Paradox?
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Undergrad Gravitational Waves: Questions on Mass & Escape Velocity
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High School Is mass the only store of energy
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Undergrad Time Dilation Effects - Understand without Clocks
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Undergrad Uniqueness Theorems in Non-Flat Spacetime
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Graduate NASA Mission to Alpha Centauri: SR & Relativistic Effects
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Graduate Deriving Relativistic Boltzmann Equation | Theory Physics MSc Thesis
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High School Is the Universe Moving in Circular Patterns Within the 4th Dimension?
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Graduate Mass of Hadrons: Verifying Special Relativity
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Undergrad Is the Delta Function a Scalar?
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Undergrad Fastest Cause & Effect: Electric Field & Magnetic Field
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Undergrad Conserved Stress-Energy in Gravitational Theories
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Undergrad Determining c from Maxwell's Equations
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High School Magnetic field and moving charge special relativity
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Undergrad Invariance of Action: Lagrangian Transformation
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Graduate Equations for computing null geodesics in Schwarzschild spacetime
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High School Coulomb force over Rindler horizon
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High School Time dilation and Einstein's theorem
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Undergrad Gravity Waves or Gravity Delay: Which Concept Explains Our Cosmic Stretching?
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High School Questions on Covariance and Contravariance of Vectors
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Undergrad Gravitational Waves & Matter: Causes, Effects & Thresholds
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Undergrad Free Particles & Geodesics: Do They Go Hand-in-Hand?
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High School How much time dilation is there as time passes?
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Insights Fermi-Walker Transport in Kerr Spacetime - Comments
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Undergrad Space-time curvature and the fabric of space
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Undergrad Confusion about index notation and operations of GR
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High School Propagation of changes in a gravitational field
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Undergrad Black hole orbital mechanics questions
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Graduate Find the Tetrad for Kerr Metric: Step-by-Step Guide
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Graduate Penrose diagram of black hole with a changing event horizon
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Undergrad Gravitational field versus acceleration
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Undergrad Relativistic form of the displacement current using the Biot-Savart Law
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High School Can Atomic Clocks Yield the Same Time Dilation Equation as Light Clocks?
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Graduate Quantum amplitude for a particle falling into a black hole
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High School What happens to the matter inside a black hole?
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Undergrad Why do particles around us have finite momenta?
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Undergrad Can this event vary relatively?
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Undergrad Maxwell's Equations in Different Lorentz Frames: Are They Equivalent?
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Undergrad General Relativity and light deflection
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Undergrad Solving for Gravity Without Gravitational Constant - Little g vs Big G
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Graduate How Do You Calculate the D'Alembert Operator in a Given Metric for GR?
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High School Special Relativity: Time Measurements on Two Systems - Mike's Question
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Insights Fermi-Walker Transport in Schwarzschild Spacetime - Comments
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Undergrad Fermi-Walker: Showing Rotation in Plane of 4-Accel & 4-Vel
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High School Traveling using space curvature
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High School Speed of Light in a Medium: Explained
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High School Does a gyroscope bend spacetime?
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Undergrad Finding Most General Form of Rindler Coordinates
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High School Understanding Entropy & Universe Expansion: A Beginner's Guide
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Graduate Extra Killing Vector Field in Kerr Spacetime?
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Undergrad Electromagnetic Curr. in Curved Spacetime: Questions Answered
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Graduate Flow as a fluid-orthogonal foliation
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High School Star Lifespan Near Black Hole: Time Dilation & Energy
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Undergrad Proper Acceleration: Why d^2x^α/dτ^2 is Not Ideal
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Undergrad Maximally symmetric sub-manifold (2-sphere)
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Undergrad On The Length of a Meter Stick
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Undergrad Geodesics in 4D Spacetime: An Overview
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High School Time Dilation: Accelerating vs Inertial Frame
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Undergrad How Does the Metric of a 4-D Spacetime Define Its Symmetry and Expansion?
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Undergrad Measuring the Speed of Light: Time of Flight Experiments
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High School Any interest in a spacetime diagram generator?
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High School General Relativity: Finding Info on Interpretation
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Undergrad Solving Special Relativity Problem w/ Two Spaceships
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Undergrad Connecting Geodesic Curves and the Covariant Derivative
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Undergrad Conservation of energy-momentum (tensor)
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Undergrad Spacetime Curvature: Eliptical Orbital Paths & Keppler Laws
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High School Big Rip Theory & Black Holes: Relativity Explained
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Undergrad Covariant derivative of tangent vector for geodesic
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Undergrad Implication of length contraction
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Undergrad Is my reasoning about commutators of vectors right?
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Undergrad Is there a zero-mass, vacuum Schwarzschild GR solution?
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Undergrad Schwarzschild metric not dependent on time
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Undergrad Contravariant Vector Transformation in Spherical Polar Coordinates
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Undergrad Parallel transport of tangent vector....(geodesic)
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Undergrad Perturbation to Flat Space Metric: Geodesic Equation
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High School Solving an Integral on a Spherical Surface - Tips
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Graduate Riemann Tensor Notation Explained | Choquet-Bruhat GR
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Undergrad Speed of Light Measured by Jupiter's Moons: Error 26%?
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High School Rocket Sends Light to Mirror: Event A to Event C Diagram
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