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.
Undergrad Einstein's Train: Does Speed Exceed c?
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Undergrad Special relativity: frames of reference
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Undergrad Radial Proper Dist. Objects Free Fall: Calculating Δs
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Undergrad What is Einstein's equation used for?
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Undergrad Myths of Modern Popular Physics
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Undergrad Question about deriving E=mc^2
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Undergrad Relativistic relative velocity
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Undergrad Symmetry of Liénard-Wiechert Potentials
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Undergrad Test the Speed of Light: Traveling Toward a Strobe Light
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Undergrad Do most physicists believe time flows?
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Undergrad Thought Experiment Contradiction: Find the Answer
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Undergrad Spinor Representation of Lorentz Transformations: Solving the Puzzle
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Undergrad Applications of Wedge-Product and Differential Forms
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Undergrad Could it be that the photon has a non-zero mass?
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Undergrad Relativity of simultaneity, time dilation misunderstanding
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Undergrad Path of Photon in Free Falling Lift: General Theory of Relativity Q&A
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Undergrad Constructing Vector in Another Basis
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Undergrad Calculating Gravitational Mass of Compressed Gas Cylinder
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Undergrad Energy contained in fuel in speed of light ship
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Undergrad Particle accleration under gravitational waves?
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Undergrad Query on basic mechanics of Special Theory of Relativity
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Undergrad Velocity Addition & Relativity of Simultaneity
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Undergrad "General Relativity" by Wald -- question
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Undergrad Help with infinitesimal transformation to finite transform
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Undergrad Force applied by a moving object
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Undergrad Gravity: Contraction of Space?
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Undergrad Relativistic charged particle in a constant uniform electric field
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Undergrad Consequences of Rotating Objects C on Coil A Frequency
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Undergrad Error in Lorentz Invariant Integration
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Undergrad Farthest distance a human can travel from Earth in a life
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Undergrad Twin Paradox: Comparing Lengths of Moving Rods
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Undergrad Tidal forces on a spring-mass system
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Undergrad Maximize dτ w/ Schwarzschild Metric: Two Masses, m & M
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Undergrad What are the 2D Translational Killing Vectors in Polar Coordinates?
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Undergrad Shining a light beam back -- relativity
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Undergrad Is it really possible that relativistic mass tends to reach infinity?
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Undergrad Crossing an Event Horizon: My Experience
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Undergrad The Shapiro delay and falling into a black hole
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Undergrad Q re equilibrium energy relationships for a mixture
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Undergrad Comparing Electric Field Intensity in Moving Systems F & F
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Undergrad How Does the Rain Frame Affect Perception of a Ball Falling Off a Cliff?
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Undergrad Question about derivation of lorentz transformation
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Undergrad Time Dilation: Hafele-Keating Experiments
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Undergrad Alcubierre Warp Drive: Arrival Problem - Fact or Fiction?
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Undergrad Average Luminosity of Moving Body: A Relativistic Analysis
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Undergrad Disproving Velocity's Effect on Space-Time
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Undergrad Change of special relativity formulas?
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Undergrad Path of Light in Curved Spacetime with Metric g
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Undergrad Riemann tensor in 3d Cartesian coordinates
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Undergrad Is Time Merely the Progression of Energy Toward Equilibrium?
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Undergrad Test of Special Relativity Confirmed - ScienceMag.org
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Undergrad Understanding the Concept of Momentum Flux in Stress: Explained and Demystified
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Undergrad Hubble's Law, Friedman Models & Spacetime Curvature Explained
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Undergrad Lorentz group, boost and indices
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Undergrad Is the mass defect still considered with invariant mass?
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Undergrad "relativistic mass" still a no-no?
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Undergrad Where the scale factor a(t) appears in the metric
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Undergrad Different methods of deriving the energy-momentum equation
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Undergrad Vectors and isometries on a manifold
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Undergrad Photon Energy Increase Under Gravity: Explained
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Undergrad Special relativity and sameness
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Undergrad Solve Null Geodesic: Affine Parameter & Coordinate Time - Q1,Q2,Q3
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Undergrad The space-time interval definition in special relativity
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Undergrad Is the Interior of a Black Hole a Space-Like Region Beyond the Horizon?
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Undergrad Any progress on realistic rotating black holes?
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Undergrad Special Relativity's effect on density
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Undergrad Bauer's Paradox in General Theory of Relativity?
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Undergrad Ivanenko, Logunov and even Zelmanov
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Undergrad Theory of Relativity: Light, Mass & Gravitational Lensing
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Undergrad What Causes High Energy Radiation Emissions from Black Holes?
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Undergrad D'Alembert equation and Galilean transformation
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Undergrad Schwarzschild Radius: Calculating V(esc.) & R
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Undergrad GR change in proximal tendancy
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Undergrad Raising/Lowering Indices w/ Metric & Tensors: Does Order Matter?
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Undergrad Virtual Particles: Speed & Impact on Rocket
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Undergrad Understanding Relativistic Ptcl Lagrangian: S1 vs. S2
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Undergrad Absolute Energy in General Relativity?
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Undergrad Accelerate Charged Particle: Does Light Require Force?
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Undergrad Black Hole Creation at Near Light Speed? - Prof. Andrea Ghez
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Undergrad Electromagnetic Force in Special Relativity
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Undergrad Resolution to the Tachyonic Antitelephone paradox
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Undergrad Gradient of a time-dependent function
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Undergrad Spacetime Metric: Which signature is better?
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Undergrad Spacelike hyperbolae -- accelerated reference frames
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Undergrad A spaceship traveling close to the speed of light sending some data....
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Undergrad Length Contraction & Time Dilation Beyond Planck Scale: Correct?
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Undergrad Deriving Magnetic Force w/ Approximated Gamma-Factor at UVA
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Undergrad Accelerating Internal OAM Photon Wavefronts Under Gravity
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Undergrad Galilean Vs. Lorentz Transformations
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Undergrad Relativity of Simultaneity and frames
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Undergrad Question on §3 of Einstein's 1905 paper
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Undergrad Is Causality Relative in Black Holes?
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Undergrad Strange Spacetime behavior inside Event Horizon
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Undergrad Do laws of physics apply below the event horizon?
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Undergrad Connection between Foucault pendulum and parallel transport
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Undergrad Detecting Gravitational Waves: Is My Understanding Wrong?
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Undergrad Why doesn't the Earth's radius change while the surface accelerates?
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Undergrad Two twins moving towards each other in a circular orbit
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Undergrad Is it possible to distort a black hole's event horizon
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Undergrad Relativity's "time dilation" or clock accuracy alteration
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