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.
A GR: Is Schwarzschild Spacetime Time-Independent?
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I Would light keep on a straight path after it bends?
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B Kugelblitz at the speed of light misconception
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I General Generator of Lorentz Transformation in Hamiltonian Formalism
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I Gravitational waves as not "proximal"?
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B On time dilation and length contraction
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A Energy condition respecting warp drives in Einstein Cartan theory
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I Rotation or acceleration defined without relation to something else
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I Length Contraction & Time Dilation: Proving It
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B Frame Dragging Rate: Mass Proportionality?
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A Explore Carroll's Theory on Dual Space and Real Numbers
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B Near the speed of light time slows down but not at everyday speeds?
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I Connection coefficient transformation law
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A Alternative theories to General Relativity
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I Space Travel: Possibilities & Questions
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B Is the gamma-factor for Tachyons real?
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I The Energy - Momentum Equation vs the Energy - Mass Equation
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I Special Relativity and Velocity
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I Particle Perspective: How Relativity Affects Us
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B Just a question about the tangent basis
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A Do state variables in general relativity have analogies in electromagnetism?
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I Supernova 100,000 Light Years Away: Agree on Time?
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I The Schwarzschild Radius: Mass vs. Energy
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A Gauge Transformations: Understanding Lorentz Condition
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I What is a Covariant Relation? GR Problem Solution Explained
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I How to Write T_{\mu v} for Energy-Momentum Tensor
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I Gravitational Waves: Hardest GR Topic?
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I What happens when twins synchronize clocks and one teleports?
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I Variation of Metric and the Energy-Momentum Tensor: Where Am I Going Wrong?
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I Solving Vanishing Tensor Eqn & Raising All Indices
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I Beginner question about tensor index manipulation
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I Convert 2x2 Matrix to 1x1 Tensor
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I Definition of Second-Order Tensor by Jim Adrian
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I Why Does Special Relativity Not Contradict General Philosophy?
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I Black Hole Bomb Effectiveness: Mirrors or Wormholes?
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B Unifying Non-Gravity Forces & Spacetime Warping
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A Gauge Invariance of Transverse Traceless Perturbation in Linearized Gravity
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B Light's Speed & Moving Observer: What Happens?
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I Equivalence Principle & Geometry: Ben Crowell's General Relativity
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B Demonstrating Time and Distance Effects of a Martian Signal
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B Sum up Questions for Gravitational Waves & Weighing Scales
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I Which clock was slower in special relativity?
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I Is the choice of metric signature truly just a convention in physics?
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B LIGO Arm Length & Sensitivity: What's the Relation?
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B Gravitational Waves: Impact & Effects on Gravity
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I Irreducible Representations of EM-Tensor Under Spatial Rotations
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Insights Intro to Centrifugal Force Reversal in Kerr Spacetime
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I Muon Time Dilation in Accelerating Frames
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A Spaghettification: Geometrical & Mathematical Description
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I Momentary Co-Moving Reference Frame in SR
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B Einstein's Train: Light Travel Time Explained
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I Energy in the Schwarzschild spacetime
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A Understanding Differential Forms: Torsion, Spin & Tetrad
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I Does Spacelike Worldlines Exist?
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B Fundamentals of Lightspeed: Questions & Answers
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B The speed of light: Was Einstein's second postulate not so revolutionary?
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B Time Dilation: Orbit Earth at Light Speed, What Happens?
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I How to call an invariant quantity?
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I Transformation of Intrinsic Spin: Does it Transform Like a 4-Vector?
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B Photon Frequency: How Special Relativity Affects Light
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I How Does Hawking Radiation Lead to Black Hole Evaporation?
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B Speed of Light & Sound: Revolutionary Phenomenon?
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B Earth Center of Mass: GR & Inertial Object Acceleration
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I The 1964 W. Bertozzi experiment
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I Observing Black Hole Collisions: Time Dilation Explained
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B Understand Spacelike Timelines: Carroll Page 71
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B Light Clock & Length Contraction in GR
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B Does E=mc^2 apply to gravitational potential energy?
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B Understanding Tensor Indices and Conservation
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I Acceleration Frame in SR: References for Research
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B Gravitational Waves: A Question on Earth's Magnitude & Frequency
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B Photon Energy Change: Speed of Light
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B Gravitational Waves: Prevalence Across the Universe
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B Measuring Gravitational Waves w/ Elevator Accelerometer
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B Modern Cavendish vs LIGO: Gravity Scale & Wave Interruption?
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I Understanding Michelson Morley Experiment
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B Time Dilation & Length Contraction: Physics Explained
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B Gravitational Waves in Positively Curved Universe?
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I Equation for Gravity Going to Zero at Finite Distance?
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A Questions about derivation of GR and applications of it
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B Converting Newtonian momentum into relativistic momentum
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B Help Interpreting SR Animation: Human-Scale Story
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I Lorentz Force Equation: Coercion & Maxwell Stress Tensor
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I Does Acceleration Affect Event Horizon Location?
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I Event Horizon Radius: Is it Constant?
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B How Does Parallel Transport Affect Vector Components and Their Changes?
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I Big Bang: Size & Matter of Universe Explained
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I Is space curved at the center of gravity?
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I Twin Paradox Time Dilation in Positively Curved Universe
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I Understanding the Stress-Energy Tensor in Special Relativity
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I Inertial & non-inertial frames & the principle of equivalence
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B How does mass affect the curvature of spacetime inside a black hole?
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A Riemann Tensor Formula in Terms of Metric & Derivatives
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I Virtual Tidal Effect in Accelerating Ship - Does it Exist?
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A Coordinate Infall Time for a Vaidya Black Hole
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B Do things that fall into black holes ever reach the singularity?
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B Speed of Light & Expanding Universe: Does Hubble's Law Violate Rule?
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I Lorentz Transforms of Electromagnetic Fields
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B Wormholes & Warp Drives: Refuted by AANEC?
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I Why Do Objects Fall Along Spacetime Ripples?
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