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 Is the speed of light infinite?
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Graduate Expanding/Collapsing Universe vs Bouncing Ball: Kinetic & Potential Energy?
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Graduate Total velocity of resting object on earth from universal frame of refe
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Graduate GR Relation Reduces to Newtonian: Limits Explained
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Graduate Does Bending Space/Time Have Credibility?
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Graduate Poincare Transformation: Understanding its Properties and Group Structure
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Undergrad Acceleration vs. uniform motion: There are three rockets in deep space
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Graduate Black Holes in String Theory - calculation help needed
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Graduate So you are driving a car at (almost) the speed of light
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Undergrad Is There a Connection Between Time and Size in Physics?
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Graduate Space-time curvature as gravity only for speeding particles?
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Graduate Doubts in general theory of relativity
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Graduate Acceleration has begun to drive me crazy .
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Graduate Is My Derivation of the Dominant Non-Linear Terms in MTW Exercise 19.3 Correct?
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Graduate Raising and lowering indices in Linearized theory
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Graduate Space Time Continuum: A Scientific Analysis
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Graduate Does matter break the light speed barrier after the event horizon?
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Graduate Does mass physically bend space or is time being bent?
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Graduate Does relativity permit tachyons given that they have negative gamma?
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Graduate Does Relativistic Mass Affect Scale Readings Inside a Moving Rocket?
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Graduate Why can't u go faster than the speed of light when speed doesn't exist
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Graduate Does Density Influence the Curvature of Spacetime?
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Graduate Speed of light in acclerated frame
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Graduate What is the most counter-intuitive concept in the relativity theories?
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Graduate Conservation of energy in general relativity & non-existence of PMMs
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Undergrad Time, Space & Light: Einstein's Theory Explained
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High School Acceleration and uniform motion are not making any sense
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Graduate Mass of objects moving at the speed of light
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Graduate Carroll Problem #15 of chapter 3 - As trivial as it seems?
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Graduate Which Lagrangian is correct for SR?
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Graduate Ambiguity of time dilation/twin paradox
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Graduate Solving the "Paradox" in Galilean Relativity
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Graduate Black Hole Formation: Susskind's Scenario Explained
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Graduate Demonstrating Metric Kerr Expression
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Undergrad Struggling to understand why uniform motion is so different from non-u
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Undergrad Event Horizons and Star's mass relationship
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Graduate Time Dilation & Length Contraction, Further Thoughts
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Graduate My problem with the relativity representation on gravity.
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Graduate Is time in essence - constant?
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Undergrad Are acceleration and deceleration the only ways we feel motion?
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Graduate MTW, Chap19, Stationary relativistic Vs Weakly gravitating source
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Graduate Quantum vacuum as origin of light speed?
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Graduate Postulates of SR without inertial frames?
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Graduate Photons effected by gravity of a Blackhole?
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Graduate Deciphering the Christoffel Symbol and Potential in Shutz's Relativity Book"
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Graduate Feynman field transformations
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Graduate If force is what causes gravity (motion), what is causing force?
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Graduate Gravitation(angular deflection of a planet from a massive star)
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Graduate A spaceship moving near the speed of light
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Graduate Can the Speed of Light Fluctuate Due to Changes in the Vacuum of Space?
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Graduate Quadruplet Paradox Question: Acceleration vs. Velocity
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Graduate Black hole information paradox
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Graduate The Mystery of the Creeping Ray & Relativity
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Graduate Is gravity just an illusion in the universe?
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Undergrad Why matter can't reach the speed of light ?
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Graduate One-way speed of light and clock sync
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Graduate Would Photon Clocks be possible?
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Undergrad Can continuous acceleration reach speed of light?
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Graduate Concerning how quickly gravity takes to effect distant bodies
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Graduate Why can't we just use one theory for everything?
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Undergrad Understanding Special Relativity (beginner questions)
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Graduate Is the Twin Paradox Resolved by Considering the Metric of Spacetime?
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Graduate Is there a simple way of deriving Lorentz transformation?
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Undergrad Time dilation and lorentz transformation
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Graduate Understanding EM in GR: Maxwell's Equations and Particle Motion Explained
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Graduate Active and passive Lorentz transformation
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Graduate Equation of Motion for a Point Mass Falling into an Infinitely Small Black Hole
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Graduate Time Dilation: Triplet Paradox makes no sense
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Graduate Is Time Physically Dimensional or Just a Conceptual Shorthand?
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Graduate Relative acceleration of geodesics and spacetime curvature
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Undergrad What is the difference between separation in space and separation in time?
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Graduate Understanding the Momentum-Energy Tensor in Einstein's Field Equations
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Graduate Photon Acceleration Near Gravitational Fields
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Graduate Higgs Boson vs GR's Spacetime: Is Mass Effect Obsolete?
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Graduate SR Vectors & Tensors: Transformations Explained
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Graduate EM Tensor Invariants - Are There More?
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Graduate Time in the reference frame of the photon and aswell curved spac
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Graduate Regular empirical evidence of curved space or massless photons?
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Graduate Possible mistake in an article (rotations and boosts).
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Graduate How is C speed invariance - hows it suppose to work mechanically?
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Graduate How does the world look like after a Lorentz transformation?
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Graduate Is this 4-velocity tangential to the worldline
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Graduate Gravitational time dilation from the metric
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Graduate Derivation of the Geodesic equation using the variational approach in Carroll
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Graduate Diffeomorphic Invariance implies Poincare Invariance?
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Undergrad How Strong is the Gravity of a Black Hole Compared to Earth?
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Graduate Acceleration to near light speed - where does the energy go?
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Graduate Simplified theories for gravity?
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Graduate Metric constraints in choosing coordinates
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Graduate Stars moving faster than the speed of light
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Graduate Length contraction of space with multiple reference frames
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Graduate How to reconcile photon not experiencing time with it's travel time?
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Graduate Metric tensor - index manipulation
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Graduate Momentum of Object in 0.6c Inertia Frame
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Graduate How Can We Calculate Relativistic Velocity for an Interstellar Journey?
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Graduate SRT Clocks Again Einstein, 1905: Q&A
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Graduate Do gravity and density have a direct relationship?
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Graduate Freely Falling Inertial As Seen By Distant Inertial Observer
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Graduate Understanding the Universe through the Perspective of Light
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Graduate Is the speed of light truly constant in all reference frames?
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