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 What is a nonscalar curvature singularity?
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Graduate What Happens When Your Spaceship Is Longer Than the Universe?
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Graduate Could extreme time dilation ever be directly observed?
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High School Bell spaceship paradox - qualitatively
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Graduate Bell spaceship paradox quantitatively
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Insights A Short Proof of Birkhoff's Theorem - Comments
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Graduate Question regarding a twin paradox related example
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Graduate Definition for curvature of worldline in Minkowski space
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High School Extreme Gravity Waves: A Phenomenon That Can Alter Time on Earth
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Graduate Faster Than Light: Nullifying Mass with E=MC2
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Graduate Why are massless photons affected by gravity?
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Undergrad Gravitational Effect: 2 Masses N, 2 Larger Masses Further Apart
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Graduate Can Time Stop in a Gravity-Free Space?
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Undergrad Time Conundrum: Angel vs Man View
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Graduate Why is gravity but not EM 'ripples' in spacetime?
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Insights Centrifugal Force Reversal Near A Black Hole - Comments
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Undergrad Why the speed of light is constant?
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Graduate How quickly does a change in gravity affect its surrounding?
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Graduate Relativistic Doppler and Hubble's law
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Graduate Curvature of spacetime inside hollow sphere
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Graduate Time dilation and speed of light
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Undergrad ?Understanding Special Relativity: Speed Addition & Subtraction
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Graduate Difference Between Special & General Relativity
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Undergrad Question about gravity and speed of light
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Graduate Why is it that light has momentum?
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Graduate Why does warping space time still violate causality?
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Graduate Why is Gravity Sensitive to Absolute Energy?
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Graduate Finite tidal forces at black hole event horizon redux
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Graduate What Are the Key Insights on the Newtonian Limit of General Relativity?
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Graduate Spaghettification near event horizon
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Graduate Can Light Orbit a Massive Object?
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Graduate What's wrong with a flat, empty, and expanding universe?
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Graduate Are time dilation experiments conclusive?
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Graduate Exterior derivative of hodge dual
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Graduate Geodesic Transport of Small 2D Surface on 3D Manifold
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Graduate Geometric representation of a tensor
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High School How did spacetime pop out into existence?
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Insights What Is the Bell Spaceship Paradox, and How Is It Resolved? - Comments
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Graduate Geodesic Eq: Deriving 2nd Term on RHS
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Graduate Null geodesics and null curves
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High School Is there a connection between gravity and the pace of time?
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Graduate Runaway solutions and the equivalence principle
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Graduate Why does length contraction not cause Black holes?
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Undergrad How Much Time Do We Actually Occupy in the Universe?
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Graduate Measuring 4-Vectors: Is It Possible?
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Graduate Time-orientability of Lorentzian manifolds
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Graduate Does a black hole have a surface area?
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Graduate Implications of Light Orbiting Black Holes
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Graduate Some questions regarding speed of light?
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Graduate Where does photon energy go in universe expansion?
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Undergrad Modeling of measurements in relativity
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Undergrad Special relativity -- 2 parallel space ships & time perception....
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Graduate Is There a Limit to the Size of a Black Hole?
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Graduate Trying to prove a consequence of harmonic gauge in GR
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Graduate Why an Infinite Lattice Cannot Be Stable: An Analysis of Peter Donis' Answers
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Graduate Local Geometry of General Relativity Theory
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Graduate Is this the one way speed of light?
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Undergrad Time Dilation & Doppler Effect: Conclusions?
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Graduate Testing Understanding: Conformally Flat Space-Time
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Graduate Does Space Expansion Add Potential Energy?
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Graduate Whether gravitons can exist or not
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Graduate Can We Make Velocity Greater Than Speed of Light?
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High School Do Gravitational Time Dilation and Redshift Contradict Each Other?
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Graduate GR: Signature & Dimension of Embedding Space
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Graduate How does curved space-time produce acceleration?
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Undergrad Understanding Wormholes & Black Holes: An Exploration by Ed
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Graduate Coarse-Grained Einstein Tensor from Weyl Tensor
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Graduate Mass of Electron: Relativity & Its Definite Mass
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Graduate Couple of questions regarding general relativity?
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Graduate Stress Energy Tensor Components
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Graduate How to find gravity using general relativity?
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Graduate Commutator of two covariant derivatives
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Graduate Compress Magnetic Field: What Happens When Spun at High RPM?
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Graduate Validity of Schwarzschild Metric in Real BHs
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Graduate What is the Purpose of the Geodesic Equation in General Relativity?
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Graduate Tensor software for General Relativity
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Graduate What is the significance of proper time in the Rain Frame of General Relativity?
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Graduate Derive Lorentz Transformations w/ Special Relativity
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Graduate Properties of light in 2 moving reference frames
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Graduate How does this proof demonstrate the concept of time dilation?
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Graduate Would an infinite universe has a finite diameter?
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Graduate Acceleration in a space time diagram
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Graduate Why Do Gravitational Waves Occur?
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Graduate Understanding Inertial Frame of Reference
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Graduate The Equivalence of Mass and Energy
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Undergrad Black Hole Effects: What Would Happen?
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High School Gravity: Einstein vs. Newton View
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Graduate Gravity as a distorion of space-time
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High School Gravitational red shift and gravitational time dilation
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Graduate Acceleration vs Gravity: Understanding Einstein's Theory | PF Forum"
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Graduate What is the boost hamiltonian in the Unruh effect?
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High School Travel at 3,000,001 m/s: Time Travel Explained
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Graduate Faster Than Light Travel: What Happens to Destination's Time?
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Graduate Unit of Acceleration: Calculating Speed with Velocity Addition Formula
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Graduate Lorentz scalars - transformation of a scalar field
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Graduate Calculating relativistic effects of motion in solar system
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Graduate General Relativity and continuum mechanics
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Graduate Trying to clear up some confusion (clock synchronization)
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Graduate Measuring Motion: What STAY Knows About TRAVEL
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Graduate How does matter know how to move?
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