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 Cosmological Redshift: Why Does k Remain the Same?
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Graduate Spinning Super Fluids: Reach Relativistic Speeds?
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Graduate Equivalent Trajectories in Relativity: Observer Effects
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Graduate Vectors in Special Relativity
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Graduate What is the four-momentum of a photon and its associated four-velocity?
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Graduate How does General Relativity explain the orbit of a planet around a star?
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Graduate Rod shortening - physical reality?
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Graduate Is the Time Coordinate Timelike or Spacelike?
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Graduate Is D'Inverno's Equation (11.38) Correctly Integrated?
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Graduate Deriving Ernst's Equation for Complex Metrics
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Graduate Twin paradox and length contraction
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Undergrad Time dilation in relation to earth time
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Graduate Can GR Explain the Expansion of the Universe Through Curvature of Spacetime?
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Graduate Is Spacetime Like Whales Displacing Water in an Ocean?
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Graduate Can Time Travel Reveal Tasks Before Completion?
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Graduate Simultaneity & seeing the same event multiple times.
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Graduate Clarifying the relativity theory
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Graduate Would light reach the earth in this scenario?
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Graduate What Does the Right Hand Side of the Equation Refer To in OEMB Section 3?
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Undergrad Is the Speed of Light Really Constant in a Vacuum?
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Graduate Deriving the Schwarzschild metric just by using the equivalence principle
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Graduate Confused by variational principle
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Graduate Can gravity exist without mass?
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Graduate What is relativistic mass and rest mass
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Graduate Axis Alignment in Einstein's 1905 Paper: Symmetry Impact
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Graduate Metric outside a spherically symmetric source.
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Undergrad Understanding the Massless Photon
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Undergrad Single Body Gravitation in a Universe with Only One Planetary Body
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Graduate The Eternal Question of Inertia
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Graduate What is the Force Formulation of Dark Energy?
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Graduate Understanding Relativistic Energy Equations: Are They Linear?
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Graduate Is a Magnet Losing Mass by Emitting Virtual Photons?
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Graduate Does energy alone contribute to spacetime curvature?
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Graduate Is the Frame Dragging Effect Measurable on High-RPM Massive Rotating Discs?
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Graduate Special Theory of Relativity Incorrect?
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Graduate What Do Traversable Wormholes Look Like in Visual Renderings?
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Graduate Speed of light for accelerated frames
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Graduate How Does Acceleration Affect the Relativistic Mass of Particles?
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Undergrad E2 - p2c2 = m2c4 - Meaning of symbols
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Graduate Help with differential geometry: Hilbert's stress energy tensor
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Graduate Yet another relativistic acceleration question
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Graduate Relativistic Force, Energy & Momentum: Does Force Also Apply?
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Graduate Confused about time dilain length contraction
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Graduate Solving Anisotropy of Swartzchild Metric: Entropy, Temperature at Infinity
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Graduate Curvature of Space-Time: Understanding Bing Bang & f(t)
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Graduate Energy variance, and pair production
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Graduate Does relativistic mass create gravity?
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Graduate Photon in time versus photon not so much-ish in time
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Graduate M. Frame: Invariant Mass Confinement < c Motion
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High School Very simple relativity questions
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Graduate Riemann tensor and flat spacetime
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Graduate Invarients from the Faraday tensor
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Graduate What are tetrads and the spin connection
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Graduate Another relativistic dynamics question
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Graduate Einstein again +, on large scale.
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Graduate Very simple thought experiment re: time dilation
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Graduate A basic question in general relativity
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Undergrad General Physics Help - Questions on E=mc^2 & Train Mass at Light Speed
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Graduate How can time dialation cause gravity?
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Graduate Debunking Time Travel Speculations: The Truth Behind Going Back in Time
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Graduate Experimental measurement of Einstein's Field Equations
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Graduate Mass Flow & Its Effect: Explained
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Undergrad Time Dilation on a Merry Go Round
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Graduate Newtonian description of Gravitational Potential Energy
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Graduate Why do massless objects travel at c?
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Graduate Raising and lowering indices of partial derivative
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Graduate Is There a Logical Derivation for Einstein's Field Equations?
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Graduate How Does Velocity Affect Time Dilation in Special Relativity?
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Graduate Is it possible to see at high speeds?
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Graduate Questions about gravity at relativistic velocities
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Graduate Determining the density of a singularity
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Graduate Ever-Present Vacuum: Light's Constant Velocity in Space
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Graduate How Fast Does Time Elapse for Us From a Photon's POV?
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Graduate The static Killing vectors in Kruskal coordinates
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Graduate Solving the Curved Space Puzzle: e or c?
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Graduate Superluminal Frame Adjustments?
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Undergrad Relativistic Energy of a Ball: Understanding the Equivalence of Mass and Energy
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Undergrad I've gone faster than the speed of light, havent you?
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Undergrad The Fascinating Movement of Andromeda Galaxy: Impact on Mass and Time?
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Graduate Is symetry across inertial frames purely theoretical?
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Graduate Time dilation & symmetrical twin paradox variant
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Graduate Energy discrepencies depending on frame of reference
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Graduate Energy Conservation and Expansion of Space: A Thought Experiment
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Undergrad How Does Bert Experience Time Differently While Traveling to Alpha Centauri?
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Graduate Is Spacetime Real or Just an Idea?
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Graduate Kronicker Delta, Levi-Civita, Christoffel and tensors
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Graduate Why is the measure and finititude of c critical?
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Graduate E=mc^2 can C^2 be described as a physical process?
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Undergrad Question About The Expansion of The Universe And Time
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Graduate What is the relationship between speed and coordinates in general relativity?
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Graduate Drawing Spacetime Diagrams: Quick Solutions
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Graduate Some Thought Experiments (simple ones)
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Graduate Divergence theorem in curved space
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Graduate Understanding Einstein Notation
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Graduate How does the Stress Energy tensor relate to Noether's theorem?
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Graduate Indices Homework Help: 4x4 = 16 Equations?
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Graduate BRS: The FRW Dust with E^3 Hyperslices
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High School Source of Gravity: What Causes Attraction Between Masses?
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Graduate How much is Special Relativity a needed foundation of General Relativity
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Undergrad Bullet from a moving train kinda
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