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 Understanding the Meaning of \oplus in Special Relativity
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Graduate Is travel at almost infinite speed (FTL) actually possible?
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Graduate Region the light never reaches the 'uniformly-accelerated' observer?
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Graduate Whats the physical meaning of a covariant derivative?
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Undergrad Time dilation analogy. Please tell me if this is accurate.
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Graduate Unraveling the Mysteries of Special Relativity
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Graduate How Does Gravity Affect Light with Zero Mass?
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Graduate The No Hair Theorem and the Gravitational Field of Black Holes
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Graduate How Does Relativistic Two-Way Momentum Appear to Different Observers?
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Graduate Why do we use the tangent and cotangent space?
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Graduate Galilean Invariance and the Special Principle of Relativity
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Graduate How to use S-metric to periastron precession of binary stars
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Graduate Precession of Mercury: Understanding Direction & Newtonian Gravity
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Graduate A good grad-level intorduction to general relativity
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Graduate Should a neutrino be moving slightly slower than c?
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Graduate Electromagnetic tensor in cylindrical coordinates
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Graduate Reframing the Special Theory of Relativity
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Graduate Deflection of light through a relativistic glass rod.
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Graduate Fingerprint of God type physics; what's meant and what qualifies?
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Graduate Measuring Frequency of Trans Planckian Blue Shift
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Undergrad Rest energy of a sample of pure matter
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Graduate Why can't photons reverse annihilate ?
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Graduate General Relativity: Gravitational time dilation of photons and Fabric of Space
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Graduate Doppler shift of a signal reflected in a mirror moving away from the observer.
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Graduate What are present problems with alcubierre drive?
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Graduate Can a Tachyon Observe Light Traveling Faster Than Itself?
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Undergrad A compressed spring has more mass
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Graduate Since space and time are relative shouldn't matter and energy be also?
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Undergrad Why do electrons revolve so fast?
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Undergrad Understanding the Concept of Relativity: Unraveling the Confusion
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Undergrad Why do you need to measure the speed of light in two directions?
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Graduate Constancy of c - second postulate
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Graduate What is the real meaning of lengh contraction of SR
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Undergrad Idea's for FTL and Space travel
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Graduate Addition of Velocities: A photon emitted backwards
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Graduate Can We Pair Composition of Velocities with an Expanding Universe?
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Graduate Basic question about TD and LC
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Graduate Do Observers Experience Black Hole Event Horizons Differently?
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Graduate Question on General Relativity
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Graduate Relativity: The General and Special Theory by Albert Einstein
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Graduate Light speed spaceship time travel conundrum
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Graduate What does symmetry in GR mean and where does it lead?
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New Test of Relativity: Settling the Debate with an Experiment Tonight
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Graduate Thoughts on electrically charged black holes
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Graduate Applying time dilation and length contraction to measure parralel c
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Graduate Orbits of a Killing vector field
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Graduate GUT Unifying Underlying Fields: Is It Beyond the Standard Model?
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Graduate What is the role of the einbein in BRST quantization?
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Graduate What kind of tensor is the electromagnetic field tensor?
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Graduate Conserved quantities in the Doran Metric?
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Graduate Value of g near a black hole (re-visited)
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Graduate Four-Vector Problem: What Am I Missing?
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Undergrad Can Photons Really Have Zero Momentum and Energy?
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Graduate 3+1 slicing of spacetime question
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Graduate Is Newtonian spacetime flat too?
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Graduate How Do Mass Constraints Affect Space-Time Diagrams in the De Sitter Light Cone?
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Graduate A question about how to understand the relativity
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Graduate Closing speed and length contraction paradoxes
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Graduate What happens in the restframe with lightsource?
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Graduate Are Geodesics and Projectile Trajectories Equivalent in Curved Space-Time?
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High School The speed of light. What's the story, really?
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Graduate About the principle of relativity
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Undergrad Magnitude of a velocity vector with special relativity
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Graduate Is there a new objection to wormholes based on information loss?
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Undergrad Atomic clock used in spaceships
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Graduate Lorentz Transform Derivation questions
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Graduate A basic question about the use of a metric tensor in general relativity
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Graduate What are the Christoffel symbols for the Schwarzschild metric?
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Graduate How can we define the induced metric on a brane?
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Graduate What's wrong with these pictures?
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Undergrad Time & Mass: Newbie Questions from a Spaceship Observer
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Graduate Does Inflation Affect the Perception of Time in Expanding Space?
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Graduate Hawking Radiation and the Hologram Theory
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Graduate Raychaudhuri equation for shear
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Graduate The velocity of light in the medium
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Graduate What Are the Differences Between Poincare and Reparametrization Transformations?
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Graduate If an object moves towards you at light speed, what would you see?
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Graduate What Are Half-Integer-Spin Geons and Their Significance in Nature?
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Graduate Do Massless Particles Cause Gravitation?
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Undergrad Is the concept of dynamic space and the effects of gravity on light measurable?
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Graduate Muons experiment, strange logic
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Graduate Confirming Time Dilation Without Subatomic Particles: Steven's Question
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Undergrad Time Travel Paradox: Can It Happen?
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Graduate Does the idea of inflation in the universe contradict relativity?
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Graduate Can a Moving Interferometer Cause Photons to Miss Their Target in Space?
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Graduate Time-like or Space-like Events: Analyzing the Train Diagram
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Graduate Geodesic and MiSaTaQuWa equation of motion
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Graduate Calculating proper time using schwartzchild metric
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Graduate Differentiation of a vektorfield
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Graduate Can changing the metric in GR result in different spacetimes?
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Graduate Help Covariant Derivative of Ricci Tensor the hard way.
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Graduate Trouble understanding MTW particulary noncoordinate basis
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Is Video Correct? What's Your Opinion?
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Graduate Calculating how light falls under gravity
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Graduate Covariant and noncovariant Lorentz invariants
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Graduate Non-geometric approach to gravity impossible?
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Graduate Relativistic kinetic energy and force.
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Graduate FRW universe, expanding space or spacetime?
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Graduate Acceleration of a static test-particle
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Graduate Black Hole Singularity Blue Shift
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