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 A question that has been plaguing me
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Graduate Why is the speed of light fixed while everything else is relative?
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Graduate Real Inertial Motion: A Discussion of Frame Independence
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Graduate Unraveling the Mysteries of Muon Experiments
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High School Experimental data in relativity
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Graduate Is Time-Reversal Symmetry Valid in Curved Spacetime?
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Graduate Magnetic Monopoles and Gravity
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Graduate Speed of light & streaming video
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Graduate Momentum of photon close the sun or black hole
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Undergrad Quick question - has length contraction actually been experimentally confirmed?
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Graduate Conservation laws in GR: a messy picture?
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Graduate Relativity query - communication with an object at light speed
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Graduate Confused about time slowing down
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Undergrad Paradox: Who Will Be the Oldest After Travelling Near Light Speed?
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Graduate Spacetime / Time Dilation Question
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Graduate How should we convey curved space-time?
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Graduate Planck relation, relativistic doppler effect, and relativistic mass
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Graduate Alternative form of Minkowski metric?
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Graduate Reference Frames in Simultaneity
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Graduate Travelling greater than speed of light
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Undergrad Questions about lights constant and photons
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Graduate Is Time Constant? Why We Assume It Is
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Graduate Potentials, connections and curvature
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Graduate Understanding GR Vacuum Solutions: Explaining the Role of Matter in Curvature
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Graduate Gravity (over extremely long distances)
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Graduate Question about length contraction (geometric way)
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Graduate Energy loss of a photon moving against gravity
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Graduate Frames vs Lines of Simultaneity
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Graduate Are accelerating lines of simultaneity correct?
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Graduate Rookie Energy Query: Mass Outflow in Supernovas
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Graduate Resolve to the Twins Paradox – Frame of Origin
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Graduate Are the doppler effects of sound wave and light wave of different roots?
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Graduate If distance and time can change then how can c be constant?
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Graduate Relative Simultaneity and Electrodynamics: Lorentz Maths
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Graduate Second postulate of Special theory of relativity-help
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Graduate Why does the second term disappear in the tangent vector equation?
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Graduate How can radar data be used to calculate acceleration?
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Graduate Is the Radius of the Universe Measured by Redshift or Distance?
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Graduate Understanding the Constant Speed of Light: Mathematical and Logical Explanations
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High School Is Your Thumb a Miniature Gravitational Lens?
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Graduate Reference book for gravitational force
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Graduate Rindler coordinates introduction
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Graduate Calculating Proper Acceleration at Bottom of a Half Light-Year Rocket
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Graduate How are the twins distinguished?
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Graduate The main obstacle in learning relativity related theories
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Graduate Orthogonal diretion on the Minkowski diagram
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Graduate John Moffat's STVGravity: Recognition by Physics Community?
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Graduate Can Every Spherically Symmetric Spacetime Be Represented by a Penrose Diagram?
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Graduate Revisiting the Flaws of the Light Clock in Special and General Relativity
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Graduate Is There Evidence for the Existence of an Anti Black Hole?
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Graduate Atomic Level Time Dilation Resources
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Graduate Particle-like Solutions of Einstein Equation: Definition
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Graduate Joe's confusion about contraction and direct product explained.
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Graduate Spherically symmetric metric form
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Undergrad The opposite of the limit of light
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Undergrad Do Laser Beams from Spacecrafts Travel at Different Speeds?
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Graduate How Does Curved Space Around Black Holes Compare to L2 and LP Spaces?
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Graduate Representation of covariant and contravariant vectors on spacetime diagrams
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High School Maths of E=MC squared, please can someone explain the maths?
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High School Question About a light beam .
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Graduate Energy and Mass: What Happens to Energy in Relativity Theory?
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Graduate Conformal group -> Poincaré group
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Graduate Time dilation due to relative velocity
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Graduate Length contraction and rod falling thorough a grate ?
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Graduate Experiment Showing Relativistic Effects in PD Acceleration
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Graduate Things that can't happen on a manifold
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Graduate Is it possible that black holes do not exist?
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Graduate Why Is It Impossible To Reach The Speed Of Light?
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Graduate How does the concept of light speed affect our understanding of time?
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Graduate Can Light Emission Be Explained Through Newtonian Physics?
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Undergrad Artificial gravity meeting zero gravity
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Graduate Motion in Spacetime (using internal forces), swimming/gliding.
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Graduate Regarding quasars not showing signs of time dilation.
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Undergrad Same old song and dance - special relativity
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Graduate Schwartsschild from Newton + Relativity
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Graduate Space-Time curvature? the units?
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Graduate Does heat generate additional gravity
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Graduate Speed of Light in Cesium Vapors
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Graduate GR with Riemannian ( ) metric?
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Graduate Clock rates and effective ptotential.
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Graduate Gravitational lensing paradoxon
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Graduate Eddington Finkelstein Coordinates + Black Holes
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Graduate Please set me straight about velocity based time travel
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Graduate Maxwell's equations in curved spacetime.
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Graduate Can we use the Schwarzschild metric under the horizon?
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Graduate Proving the Universality of Physical Laws: A Challenge for Kev
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Undergrad Speed of Light: Can We Reach It?
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Graduate How to Calculate the Variation of Quadratic Action for Riemann Tensors?
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Is Time Slowing Down? Scientists Weigh In
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Graduate Is this why relativity and quantum physics don't mix?
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Graduate Time Travel and the Conservation of Matter Problem
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Graduate What Does the r=0 Singularity Represent as an Event at Fixed Time in Spacetime?
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Graduate Gravitational time dilation vs velocity time dilation
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Undergrad Proving Special Relativity Wrong: Experiments & Particles
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Graduate Elementary question - Special relativity
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Graduate What Does Newton's Bucket Paradox Reveal About Motion and Inertia?
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Graduate Stone's derivation of Thomas rotation
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Graduate Integrating an accelerating Worldline
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Graduate Light has mass, and it travels at the Speed of light, so a massless object .
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Graduate Cosmic Relativity: C. S. Unnikrishnan's Reassessment
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