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 Why does the Lorentz transformations form a group?
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Graduate What is the significance of Ashby's use of the Langevin metric in GPS and GR?
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What is the Meaning of "Empty Space"?
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Undergrad Difference between spatially homogeneous and isotropic?
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Graduate Schwarzschild metric, cosmological constant
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High School Universal Gravitation: Einstein's Warping of Space and Time
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Graduate Can Spacetime Curvature Exist Independently of Mass?
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Graduate The Unruh effect and light beams
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Graduate Stress-energy tensor in curved spacetime
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Graduate Change of speed of light in a gravitational field
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Graduate What Is the Plane Schwarzschild Geometry?
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Graduate Time dilation and Lorentz-Einstein transformations
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Graduate Nested Event Horizons: Possible in General Relativity?
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Graduate Schwarzschild radius of a black hole
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Graduate What is the relationship between orbital energy and gravitational waves?
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Graduate Can a Photon Orbit a Black Hole?
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Graduate Measurement of distances in the presence of a black hole
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Graduate Finding the inertial frame in the two-body problem in GR
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Graduate Defining GR with Poisson Bracket
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Graduate Comparing Gravitational Accelerations: Newtonian vs. General Relativity
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Graduate Perihelion drift in SR and in GR
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Graduate Are horizons fingerprints of General Relativity ? and more questions
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Graduate How Does the Minkowski Metric Relate to Tensors in General Relativity?
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Graduate Why do light rays emitted at the event horizon stay there in a black hole?
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Graduate Gravitational Waves & Unification: Einstein's Remark?
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Graduate Gravitomagnetism: 17 Orders of Magnitude Beyond GR Prediction
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Undergrad Unraveling the Mystery of E=mc^2: The Surprising Truth About Light's Energy
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Undergrad Is E=mc^2 an Exact Equation or an Approximation?
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Graduate Charge Invariance: Argument Explained
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Graduate Mechanical experiments testing special relativity?
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Graduate Is the relativity of simultaneity relative?
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Graduate Is it possible to derive Lorentz-transforms through geometric methods?
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Graduate Four-Vector Physics: Exploring Questions
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Graduate Questions on Spacecraft, Light Mass, Relativity & Quantum Theory
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Graduate Relativistic Action: Lorentz Transform to Get Action A
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Graduate E=mc^2 in Natural Units: Understanding the Meaning of c^2
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Graduate Does c-u mean that c composes with u?
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Graduate Why should the covariant derivative of the metric tensor be 0 ?
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Graduate How to use Einsteins Field Equations ?
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Graduate Length Contraction: Row of Blocks & Rods
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Undergrad Understanding Tensors: A Beginner's Guide to Relativity | New Member Question
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Graduate How can I show that G=8pT implies the equivalence principle ?
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High School Faster than Light Particles: Meuons & Photons
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Graduate Simultaneity in Special Relativity and lorentz transformation
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Graduate Isolated Horizons: Definition & Use
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Graduate Temporal distortion along train DURING Acceleration
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Graduate Understanding Pointlike & Local Energy Density
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Graduate Relativity and Faster than the speed of light.
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Graduate Reverse time dilation possible?
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Graduate How does relativity show that energy is proportional to frequency?
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Graduate Moonrock gravitationally same as earthrock?
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Graduate E = mc2 is not really true in all cases?
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Graduate A black hole thought experiment
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Graduate Light Speed Separation: How Long?
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Graduate Is E = mc^2 the only formula for total energy?
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Undergrad Gamma Explained: Reasons for Lorentz Transformation
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Graduate Newton's Gravity corrected and Pioneer 10 anomaly
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Graduate The Mystery of Photon Motion: How Do Photons Perceive One Another?
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Graduate Black Hole Questions: Mass Increase & Formation
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Graduate Heated discussion about a flaw
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Graduate Temporal distortion of a moving train
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Graduate Why was Lorentz transformation known before Einstein explained clock synchronisation
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Graduate Topology of Spacetime: Non-Compactness Not Required?
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Graduate Solving the Submarine Problem: Will it Rise or Sink?
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Graduate Precession of the perihelion - Schwarzschild metric
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High School Does a Fourth Dimension Beyond Time Exist?
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Graduate Are there other phenomena (besides light) whose speed is invariant?
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Graduate Einstein's Special Theory of Relativity: Beam Angle
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Graduate Why did Einstein use light to define simultaneity?
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Graduate Does Gravity Affect the Local Speed of Light in Accelerated Frames?
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Graduate Lightbulb Paradox: Solving John Wheeler's Problem in SpaceTime Physics
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Graduate Pair production and another body?
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Graduate How Can Successive Boosts Illuminate the Lorentz Transformation?
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Graduate Is Conservation of Scalar Quantities Possible in General Relativity?
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Graduate Is Time Merely a Consequence of Space and Speed Limit c?
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Graduate Trying to understand relativity of lengths and times
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Graduate Figuring out the units for the cosmological constant
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Graduate Why Do Space-Time Diagrams Reverse Axes in Special Relativity?
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Graduate Understanding Spacetime Geometry: Timelike and Spacelike Vectors Explained
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Graduate Does Mass Really Increase Infinitely as Objects Approach the Speed of Light?
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Graduate Is e=mck Compatible with Einstein's Theory of Relativity?
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Graduate How Speed of Light Is the Same Speed in All Frames
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Graduate Was the Schwarzschild geometry acceptable
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Graduate Question on Einstein's Equation
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Graduate Speed of Moving Object: Exploring Length Contraction & Time Dilation
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Graduate Resolving the Incompatibility of Special Relativity and Quantum Mechanics
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Graduate Proper time for an object falling into a black hole
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Graduate Relativity and Lorentz Symmetry: What is the Relationship to Reality?
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Graduate Negative Mass and its Implications
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Undergrad The speed of light in a vacuum?
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Graduate How Do Time Sources and Space Sinks Relate to General Relativity?
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Graduate Important note concerning relativity of time
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Is Spacetime Shaped Like the Sea?
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Graduate What Is the Relationship Between Photon Mass and Frequency?
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Graduate What is time dilation and how does it relate to Einstein's theory?
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Graduate How Does Relativity Affect Movement on a Ship Near Light Speed?
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Graduate Does Newtonian gravity bend light?
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Undergrad Inertial Reference Frames- circular?
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Graduate Freezing light contradicts Einstein?
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Could You Pick Up an Airplane in Frozen Time?
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