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 Thought experiment about Simultaneity
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Graduate Where did Einstein say :mass curve space/time ?
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Graduate Time dilation and space travel
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Graduate Is energy conserved in general relativity?
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Graduate Relativistic gravity incomplete? Big Bang singularity
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Graduate Is Faster than Light travel impossible?
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Undergrad Would we as humans ever be able to travel close to the speed of light?
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Graduate GR in a universe without matter or energy
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Graduate 2 black holes, 2*M -> 1 b.h., 2*M - f*2*M?
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Undergrad Solving Velocity Addition Formula: 0.75c+0.75c = 0.96c
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Undergrad What is the Lorentz contraction equation for bodies at relativistic speeds?
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Graduate Question about Schwarzschild radius
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Graduate Relativity and Spatial Dimension
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Graduate How would you calculate how bodies curve space/time?
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Graduate Einstein and idea that nothing can travel faster than the speed of light
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Undergrad Proton Mass-Energy: E=mc^2 Explained
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Graduate Speed of Light & Time: Einstein's Theorem Explained
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Graduate Absolute zero and hot in respect to time dilation
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Graduate Deriving Einstein's Field Equations: A Comprehensive Guide for Laymen
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Undergrad Light, dielectric medium, c, wavelength
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Graduate General Relativity look at backwards.
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High School Understanding Special Relativity: A Simple Explanation for KS3 Students
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Graduate Gravitational vs geodesic proper time
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Graduate Differences in Newtonian and Relativistic predictions of gravity
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Graduate Increase in spin rate as object collases to black hole
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Graduate Dificulty with Einstein's derivation of TAO
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Graduate Formulation of Einstein-Hilbert Action
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Graduate Writing the EFE in a different form
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Graduate There is a mistake in relativity.
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Graduate Sun Vanishes - How Long Till Orbits Change?
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Graduate How little does a hydrogen atom curve space?
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Graduate Is Lorentz Contraction Indistinguishable from Standard Relativity?
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Undergrad Need help understanding the twins
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Graduate Can you scoop out part of a black hole?
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Graduate Understanding Einstein's Twin Paradox, past the usual level?
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Graduate Zeno's Paradox Applied to Physics: Can Object B Catch Up?
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Graduate Relativistic Rotation: Does v=rω?
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Undergrad Object's mass does not increase as it approaches the speed of light?
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Undergrad Gravitational Force: Evidence & Distance
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Graduate Understanding Curvature Perturbation in Cosmology
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Graduate Understanding the Equivalency Principle: Elevator Example and Its Limitations
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Graduate Relativity through different scales
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Graduate Is the Cosmological Constant the Same as Dark Energy?
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Undergrad Electric field and light and stuff
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Graduate Physical meanings of universal coordinates in schwarzschild metric
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Undergrad Mass at equator versus mass at pole
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Graduate Experimental sticky (Hafele-Keating experiment)
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Graduate Understanding the False Twin Paradox: An Alternative Explanation
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Graduate Rotation and Minkowski diagrams.
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Graduate Evotos Experiment: Equator vs. 45° Latitude
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Graduate I am having troubles with the gravitational time dialtion equation.
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Graduate Time and the relative speed of an Expanding Universe
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Graduate Issues with Eddington-Finkelstein Coordinates
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Graduate Why Does Rotating the Minkowski Metric Yield Non-Zero Curvature Components?
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Graduate Why is the relativistic Lagrangian for a free particle proportional to 1/\gamma?
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Undergrad The aether was a flawed experiment?
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Graduate In 4-D, the Earth orbits around the sun in a straight line
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Graduate Why FTL travel of light spot can't carry any information?
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Graduate By photon's POV, would light travel infinity in no time?
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Undergrad Help with energy-mass equivalence
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Graduate Why Hawking radiation contains other particles besides photon?
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Graduate Relativity Questions on Motion Limits
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Graduate Time dilation can't possibly be explained this easily
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Graduate Massless Particles: Speed of Light & Gravitons
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Graduate Simple argument for area conservation under Lorentz transformation?
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Graduate All rotating black holes will eventually stop?
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Graduate Schwarzschild affine connection
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Graduate Covariant divergence question from Landau and Lifshitz
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Graduate Lorentz Contraction: Explaining the Mystery
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Graduate Einstein's box in media and mass-energy equivalence
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High School Is it possible? (faster than light in a medium)
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Graduate S,S' in the Lorentz transform.
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Undergrad A and B are twins,A notice B moving away from him with velocity v
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High School Why Does Light Slow Down in a Medium?
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Graduate Contradiction between Quantum Mechanics and Special Relativity？
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Graduate Einstein's box of phonons and energy-mass equivalence
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Graduate Theory of relativity second postulate
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Graduate Minkowski Norms and Lorentz Metric in Spacetime
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Graduate Black hole can regard as most efficency mass-energy convecter?
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Graduate Understand GR: Tips for Ancient Non-Mathematical Fossils
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Graduate Relativistic Collision Effects on Speed, Mass
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Graduate Is Time Relative? The Twin Experiment and Its Implications
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Graduate Solving Space-Time Variation in the Ocean
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Graduate Relative Motion: Framing Object Velocity
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Graduate Does spacetime could curved in a square way ?
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Graduate Riding on a Photon: Is Time Really Eternal?
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Undergrad F = qvB in Relativity: A Charge in Magnetic Field
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Graduate Why does time dilation only affect GPS satellites in one direction?
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Graduate Power Required to Accelerate Space Craft to Near Light Speed
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Graduate Do Charged Particles Radiate in Different Frames of Reference?
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Graduate Energy density of grav. field - analagous to EM
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Graduate Energy conservation in relativity
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Graduate Electric resonance in a moving frame
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Graduate How Do Black Holes Increase Their Mass Despite Observational Paradoxes?
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Undergrad Can a moving observer detect a magnetic field from a stationary electric charge?
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Graduate Formalism for an extended object
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Graduate How does an observer's perception of a black hole change while diving into it?
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Graduate Explaining Relative Simultaneity
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Graduate Merging Black Holes & the Nature of Time
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Undergrad A 13-Year-Old's Physics Dilemma
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