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 Is there evidence that relativity contradicts Newton's 3rd law?
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Graduate Help me to Understand: I am traveling at 90% of the speed of light.
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Graduate Inverse Funcation of Relativistic mass
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Graduate Equivalence between a Black Hole and travelling at the speed of light
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Undergrad What happens with a 'Light in a box theory'
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Graduate Does forces travel faster than speed of light?
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Graduate Question About Gravity: Bending of Space Time, Graviton, Super Force
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Graduate How is singularity formed inside a black hole?
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Graduate Is Relativity Really Relative? Clearing Up Confusion About Time and Light Speed
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Graduate Acceleration and velocity: Newtonian versus relativistic interpretation.
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Graduate What Are the Challenges of Force in Special Relativity?
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Graduate Is there something behind a horizon?
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Graduate Does General Relativity Affect Vertical and Horizontal Light Beam Speeds?
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Graduate How Does Relativity Affect Time Measurement and Velocity Perception?
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Graduate A & B Clocks: Why Velocity Time Dilation is Not a Paradox
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Graduate Can an object falling towards a super massive planet reach the speed of light?
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Graduate Relativistic Force Transformations
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Graduate Is Light Truly Constant Despite Its Properties?
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Graduate Sum of the angles in 4D coordinates system
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Graduate Can the Ehrenfest Paradox Occur for a Rotating Body with Relativistic Speeds?
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Graduate How Does Time Dilation Impact Space Travel Durations?
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Graduate Lorentz Transformation in New Coordinates
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Graduate How can black holes actually ever exist?
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Graduate Is variation pricip for light-geodetic correct?
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Undergrad Is there a name for this equation?
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Graduate Particle bunching +Lorentz contraction
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Graduate What Makes Light Cone Physics So Intriguing?
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High School What is galileian system of coordinate?
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Graduate Is poincare group simply connected?
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Graduate Is law of universal gravitation really correct?
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Graduate Why is energy the time counterpart of momentum
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Graduate SR and GR in a medium, gravitational waves
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Graduate General Lorenz transformation is not group
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Graduate Independent Components in Riemann-Christoffel Tensor
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Graduate Spacetime, curvature, orbit, matter and reactions
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Graduate Spacetime - formal description of No Rip/Tear
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Graduate Time Dilation-Frames-Details and hypotheticals
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Undergrad Solution to Time Dilation Problem
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Graduate Minkowski metric tensor computation
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Graduate Why light speed is constant? (please read)
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Graduate Physical meaning of tensor fields
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Graduate Does Schwarzschild Solution work inside a massive body?
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Graduate Simple Question-I hope-difference between SP and GP
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Graduate When will the person at point B see train2 and why?
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Graduate GR weak field approx. problem with Dunsby's notes
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Graduate Confused with a certain aspect of special relativity
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Graduate Relativistic Particle Collisions with Photons: Understanding Momentum and Energy
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Graduate Is the Speed of Light a Constant?
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Graduate Speeding Black Hole: Mass & Density Explained
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Graduate Relativistic paradox involving torsion.
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Graduate Can an Observer Moving at Light Speed Measure Their Own Speed?
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Graduate Fractal dimension of CMBR? Cluster distribution?
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Is Time Travel Possible or Just Science Fiction?
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Undergrad Redshifting Help - Understand the Doppler Effect of Light Waves
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Undergrad Proof of Relativity: Understandable without Physics/Maths
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Example & Question: What Will Clock 3 Count?
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Graduate Pair of moving charges - confused
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Graduate Understanding Time Dilation Equations: Special vs. General Relativity
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Graduate Einstein's Theory: The Speed of Light and Time
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Graduate Gravitational Force between Moving Bodies
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Graduate Special relativity and acceleration
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Graduate Thinking bout the Special Theory of Relativity
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Graduate Researching an Alternative Theory to General Relativity
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Graduate Four-vectors and related concepts
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Graduate Light Clock in a Gravity well ?
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Undergrad Constance of speed of light and refraction index question
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Graduate Time & Space Expansion: What Does It Mean?
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Graduate Can someone help a novice unbeliever?
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Graduate Field Equations for f(R) Gravity: How to Integrate by Parts?
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Undergrad Beginner's Light Clock question
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Graduate Velocity translating into weight?
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Graduate Is absolute zero energy a meaningful concept in relativistic thermodynamics?
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Graduate Length contraction falling down a hole.
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Undergrad Gravitational Attraction of Motionless Masses
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Undergrad Space-Time Diagrams: Explaining & Setting Up
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Graduate Running away from a beam of light
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Graduate The Greisen-Zatsepin-Kuzmin limit.
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Graduate Can Relativity be Applied to the Motion of Atoms and Intermolecular Forces?
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Graduate Minkowski in 5-D: what is the fifth?
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Undergrad I finally figured out how to ask my question
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Graduate Minkowski vs deSitter: hyperbolic vs spherical?
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Undergrad Who is in Motion: Two People, Constant Rate
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Graduate Apparent Angular Size in Pinhole Camera Concept
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High School Why AND HOW could Time Slow DOWN?
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Graduate What does the travelling twin actually see?
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Graduate Time dilation in uniform field?
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Graduate Do Time Machines Account for the Movement of Planets and Galaxies?
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Graduate Gravitomagnetic Waves: Properties & Sources
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Undergrad Explaining the Constant Speed of Light in Special Relativity: A Beginner's Guide
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Graduate Are closed time like curves an inherent feature of rotating universe models?
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Undergrad Understanding the Speed of Force: Instantaneous vs. Speed of Light
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Graduate Speed of Gravity? Questions about the Kopeikin Experiment of Sept 8 2002
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Graduate Looking for a specific unusual solution to Einstein's field equations
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Graduate Negative time Minkowski metric
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Graduate Is Complex General Relativity the Key to Understanding Naked Singularities?
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Graduate Is there any difference left between time and space left?
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Undergrad Red shift and the train thought experiment
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Graduate What is happening when travelling towards light?
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Graduate Gravitational acceleration of relativistic objects.
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Graduate Is Vacuum Really Just Empty Spacetime?
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