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 Proving that the sphere cannot be expressed in flat coordinates
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Graduate Is it really possible to solve for how fast an apple will fall on earth with GR
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Graduate More detailed discussion on star collapse
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Graduate Big trouble with Kerr solution
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Graduate Gravitation and Information, BH paradox
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Graduate Light Curve Space: Maintaining Speed Constant
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Graduate Derivative of metric tesor and its trace
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Graduate Does Energy in Curved Spacetime Depend on the Choice of Hypersurface?
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Graduate Plotting Planets Orbits around Sun using Schwarzchild Metric
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Undergrad Why is max speed, speed of light?
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Graduate Mechanism of gravitational acceleration in GR
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Graduate What is the physical meaning of metric compatibility and why is it important?
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Graduate Coordinate transformations in gr
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Graduate General covariance and tensors
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Graduate Speed of light /time / and material
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Graduate How much is space bended at the surface of the sun
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Graduate General Relativity is pure Mathematics
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Graduate Calculating Time Deviation Inside the Sun
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Graduate Ultimate size of the Universe (finite)
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A good video explaining time dilation
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Graduate I think my Prof did this wrong, Need
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Graduate Can a Naked Singularity Become a Black Hole?
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Graduate Proving Surface Gravity with Killing's, Hypersurface, Geodesic Equation
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Graduate Discrepancy regarding time measurement
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Graduate Can Faster-Than-Light Communication Be Achieved with a Long Pole?
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Graduate Easy Lorentz Transform Problem
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Graduate Frame velocity v. object velocity in derivation of 4-velocity
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Graduate Light wave behavior and frame velocity in Appendix 1: Simple Derivation
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Graduate Calculating gravitational time dilation
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High School What are the Four Dimensions in Our Space-Time Continuum?
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Graduate What is the effect of the relativity of simultaneity?
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Graduate Magnetic Fields & Warping Space: Can It Be Done?
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Graduate What is the Lagrangian for geodesics in Schwarzschild coordinates?
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Graduate Relativistic centripetal force question
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Undergrad Questions on the nature of Speed of Light
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Undergrad Equal Energy Exchange in Gravitationally Attracted Objects?
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Graduate Upper Limit of Universe Rotation: 10^-8 & 10^-15 Rad/yr
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Graduate Understanding the Causes of Photon Redshift
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Graduate One more time on Hawking radiation
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Graduate Synchronizing Atomic Clocks in Inertial Motion: Planet or Black Hole?
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Graduate Is the garvitay depend upon medium and is gravitaion force is quantized?
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Graduate WMAP Data Redshift and Background Radiation
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High School Have a question about speed of light
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Undergrad Understanding Relativistic Momentum in Special Relativity
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Undergrad Opinions on Red Shift? Discuss Here
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Undergrad Relativity question(layperson level)
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Undergrad Time Dilation: Does Length Contraction Apply?
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Undergrad Simplest way of deriving Lorentz transforms
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Graduate How to calculate the contraction of metric tensor g^ab g_ab
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High School Just a question about light speed
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Graduate Can't Solve the Relativity Problem: Seeking Help
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Graduate Can Length Contraction be Proven Experimentally?
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Graduate Can Varying the Gravitational Constant Mimic General Relativity's Effects?
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Graduate How Do We Detect the Charge of a Black Hole?
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Graduate Update on Devasia Santosh's Lorentz Violation Research
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Graduate Calculate Bending of Light: Find the Middle Point
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Graduate Calculus of Variations in General Relativity
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Graduate Length Contraction: Need Help Understanding Lorentz Transformation
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Graduate What Graphs Show Time Dilation for a Twin Traveling at Light Speed?
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Graduate Absolute Time Clock Experiments: Einstein's Special Relativity
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Graduate Do all observers agree on the age of our Universe?
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Graduate Rest Length, Coordinate Length, and an argument for True Length
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High School Where can I find resources for learning Relativity as a high school student?
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Undergrad How would two massive bodies effect eachothers gravity?
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Graduate T constant lines in Minkowski Conformal Diagram
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Undergrad Need help understanding time dilation
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Graduate What Happens When You Observe Objects While Traveling at Light Speed?
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Graduate Two Questions on General Relativity & String Theory
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Graduate Why Does FTL Travel Lead to Time Paradoxes?
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Undergrad Does incurvation of space requires energy?
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Graduate Intersection of bars moving at v>c
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Graduate Velocity of our universe through time?
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Graduate Measuring Light Speed with MMX in Water
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Graduate Transformation law in curved space-time
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Graduate Learning Light Cones: Seeking Understanding
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Graduate Field Lines in Expanding Space Explained
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Graduate Why Does Jill See Bob's Speed Differently in an Alternate Universe Race?
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Graduate Let a clock A be at rest in an inertial frame and let a clock B rotate
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Graduate How does the concept of light cones relate to time travel?
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Undergrad Curvature of Space: Explaining Gravitational Forces
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Graduate Causal structure of spacetime: intuitive reason for non-compactness?
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Graduate Special Relativity: Theoretical Questions
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Graduate Single positive electric charge in a closed universe
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Graduate Killing vectors of minkowski space
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Graduate More questions about relative speeds.
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Graduate Does Einstein's Theory of Relativity Substantiate the idea of Time Travel?
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Graduate Frame dragging from a light beam
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Graduate Pioneer 10 Anomaly: Revising GR Physics Model with Intriguing "Nudges
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Graduate Covariant and Contravariant Vectors
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Graduate Geometry Behind g_μν Λμ ρ Λν φ = g_ρ φ ?
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Graduate Does the metric have to be symmetric? Why?
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Undergrad Condition for a particle to move relativistically
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Graduate Growing Block Universe: SR & GR Compatibility
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Graduate Relativistic correction for gravitational acceleration
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Graduate How long does it take to reach the singularity in a free fall at r=0?
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Graduate Is the concept of relativistic mass correct?
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Graduate Is it possible rapid increase impact account for perception of time dialtion?
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Graduate Can an EM Stress-Energy Tensor Exist with Equal Sigma-Values?
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Graduate Landau & Lifschitz, Classical Theory of Fields
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Graduate Do Photons Have a Gravitational Effect?
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