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 How Do Conformal Maps Preserve Angles in Different Geometric Contexts?
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Graduate Existence of quasi-euclidean spacelike hypersurfaces?
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Graduate Eddington Finkelstein coordinates in the Schwarzschild spacetime
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Graduate What are valid coordinate transforms (diffeomorphisms)?
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Graduate Velocity addition ain't what it used to be
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Graduate Can wormholes be used for faster-than-light travel?
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Graduate Events in different reference frames
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Graduate Covariant derivative and geometry of tensors
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High School Is It Possible to Chase Yourself Around the World?
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Graduate An issue I'm having with time dilation and other effects of speed
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Graduate Ricci tensor: symmetric or not?
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High School Is Spacetime Everywhere and Does it Stack Infinitely?
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Graduate Solving the Time Dilation Paradox - Special Relativity Explained
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Graduate Local Minkowski space and free falling
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Graduate Choice of scaling function for Penrose diagrams
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Graduate Lorentz transformations of the angular momentum
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Graduate Turning the Earth-Sun Pencil: Let's Test the Speed of Light
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Graduate Can anything truly travel at lightspeed through both space and time?
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Graduate What is the Lorentz-invariant metric for space-time in special relativity?
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Graduate Expressing 4-potential as a Fourier integral
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Undergrad How do we know that gravity results from mass?
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Graduate Upper- and lower-index Levi-Civita tensor/symbol
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Graduate Triangle GR thought experiment
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Graduate Spin of the Photon: Relativity and Angular Momentum
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Graduate What Are the Key Resources for Understanding Wormholes and White Holes?
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Graduate Definition of black hole for the purposes of no-hair theorems?
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Graduate Schwarzschild metric in 3-dimensional space-time
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Graduate Einstein was wrong you can beat the damn game
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Graduate Is General Relativity Time Symmetric?
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Graduate Do materials have temporal elasticity?
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Undergrad Accel Qs: Is Velocity Affected by Gravitational Acceleration?
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Graduate What are the meanings of highlighted term?
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Graduate What Does the 1 in the Spacetime Equation Mean?
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Graduate General Relativity Basics: The Principle of Equivalence
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Graduate Can E=mc^2 Be Derived Without Special Relativity?
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Graduate Trying to understand the Lorentz transformation.
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Graduate D.W. Sciama's Theory of Inertia: Origin & Discussion
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Graduate Where laser beam will fall (see the attachment)
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Graduate Negative Schwarzschild mass parameter?
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Undergrad Gravity: What Powers Mass's Pull on Objects?
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Graduate Finding Components of the Christoffel Symbol
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Where Does Space End? - A Question Explored
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Undergrad Can Centrifugal Force Overcome Gravity?
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Graduate Photons and and equivalent number of atoms on gravity
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Graduate Let's say i'm in Einstein's elevator
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Undergrad Special Relativity (i'm confused)
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Graduate Why does a clock appear to run slower on a space probe moving away from Earth?
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Undergrad Relativity & Conservation of Momentum: A vs B Collision
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Graduate Wormholes to lead into different parts of space
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Graduate How Does a Spherical Earth Challenge Our Perception of Space and Geometry?
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Graduate Orthochronous transformations?
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Undergrad Why do we treat earth and why does it work as an inertial frame
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Graduate Can an outside observer use electromagnets to solve the Barn-Pole Paradox?
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Graduate How does mass create curvature in spacetime?
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Undergrad Ticking Clock and Pendulumn Thoughts
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Graduate What Is Dirac's Identity in Minkowski Spacetime?
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Graduate Einstein's Theory of Relativity: What if E=mc2 Was Wrong?
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Graduate Is Faster-Than-Light Travel Possible Through Quantum Entanglement or Wormholes?
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High School Simple question about inertial frames of reference
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Graduate Light's constant speed and frames of reference
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Graduate How do we determine the global geometry of thin shells in GR?
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Undergrad Education in Relativity Theory
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Graduate Understanding Time Dilation in Frames of Reference: A Basic Question
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Graduate Is My Calculation Correct for Topological Action with Veirbein and Levicivita?
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Does "What You Don't See" Apply to Special Relativity?
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Graduate Faster than the speed of light?
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Graduate Could the Discovery of Faster-Than-Light Speed Rewrite Physics?
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Old Relativity Texts - Download Free from Archive.org
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Graduate Understanding Relativity and the Potential for Faster-than-Light Travel"
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Graduate Extrinsic Curvature: Normal Vector & Sign Impact
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Graduate Derive Lanczos Equation: Step-by-Step Guide
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High School What is an inertial reference frame?
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Graduate Why did Einstein change his prediction about bended light?
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Graduate Speed of light Described by relativistic mechanics
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Graduate Can Graphene/Nanotubes Change Mass?
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Graduate Why is the speed of light a universal constant beyond Maxwell's equations?
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Undergrad Why photons don't fall to Earth?
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Undergrad Why is additional complexity necessary for understanding 3D space?
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Graduate Understanding Dual Manifolds in General Relativity
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Graduate Calculating the area of a sphere
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High School Faster than light? Faster than light Faster than light
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Graduate Time Dilation: What's the Rest Frame?
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Undergrad 5 Light-Year long stick question
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Graduate Time Dilation of Stationary Photons
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Graduate Can Any Continuous Coordinate Transformation Be a Local Poincare Transformation?
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Graduate MTW Formula 25.38 Coordinate Time
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Undergrad Possibility of Traveling Faster Than Light?
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Graduate How would this experiment play out? Length contraction / black hole
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Graduate Learning General Relativity Without Money: An Internet Guide
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Graduate Can a train traveling near light speed really enable time travel?
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Undergrad Question about the theory of relativity.
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Graduate Well-motivated theories with nonzero PPN ζ?
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Graduate Relative Length to Relative Volume
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Graduate Is There a Fundamental Limit on Acceleration in the Universe?
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Graduate Force due to gravity vs force due to accelratio
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Undergrad Could Rapid Spinning Affect Gravity on the Moon?
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Graduate Simultaneity in General Relativity
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Graduate Einstein's second postulate (one-way speed of light)
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Graduate Why are mass and energy related by the speed of light?
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Undergrad How Does Matter Curvature Affect Spacetime in General Relativity?
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