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.
High School Energy, Mass, Speed of Light: Can We Reach It?
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Undergrad How is the 4-Dimensional Element Volume Used in Quantum Physics and Relativity?
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Undergrad Why is the speed of light absolute?
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High School Time dilation, relativistic mass and fuel consumption
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High School Tensor Contraction with Metric for Stress Energy: Explained
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Undergrad History of E=mc^2 Before Einstein
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Undergrad Do We Need ESC in Earth's Atmosphere?
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High School Meaning of "Speed of Light is Constant": Explained
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Undergrad Does Conservation of Momentum & Energy Hold in the C.O.M. Reference Frame?
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Undergrad Where is Contraction Point in Special Relativity?
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Undergrad Lewis H Ryder: Cartesian to Polar Coord Transformations
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Undergrad Accelerating Body Creates Space-Time Curvature?
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Undergrad Quadrupole Moment Time Variation: Does Coordinate Choice Matter?
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Graduate Lorentz Transformation Derivation Question
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Undergrad Inertial frames in changing gravitational fields
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High School Moving Faster Than Light: Are There Symmetrical Rules?
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Undergrad Is the inertia of a massive object the result of gravity wave generation?
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High School What Conditions Allow for the Formation and Detection of Einstein-Rosen Bridges?
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Graduate Time Measurement in Friedman Metric: Physically Possible?
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Graduate Hawking Radiation: Understanding Complexity in Black Holes
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High School Does Black Hole Gravity Cause a Blueshift in Approaching Light?
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Graduate Magnitude 4-Vector Lorenz Gauge: Klein-Gordon Eq.
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High School Do Photons Experience Time When Traveling at Light Speed?
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Undergrad Special Relativity & No Special Inertial Frame of Reference
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Undergrad Gravity at the Event Horizon of a Black Hole
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Undergrad Trace of the stress energy tensor
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Undergrad Everyone Measures Light in a Vacuum at the Same Speed
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Undergrad Electromagnetic Radiation in Strong Gravity Field
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Undergrad Microsoft Mathematics: Calculate EM Energy Momentum Tensor
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Undergrad Equivalence Principle: Locally Flat Spacetimes Explained
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Undergrad Covariant Derivative: Limits on Making a Tensor?
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Undergrad What is the Constant Speed of Movement through Spacetime?
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Undergrad Gravity: What Moves a Stationary Body?
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Undergrad Is Zero Curvature Space Equivalent to Flat Space in General Relativity?
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Graduate Lorentz Invariance of Lagrangian: Proof & Explanation
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High School Why Shouldn't I Be Skeptical About SR Postulate No.1?
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Undergrad Can Gravity Escape a Black Hole? | GR Learning
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Undergrad Lorentz Arguments for Ether: Critical Analysis of 1895 Paper
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High School Observer Moving at c: Does it Contradict Limits?
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High School The precession of Mercury's orbit
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Graduate Variation of Metric Tensor Under Coord Transf | 65 chars
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High School Redshift & Energy Conservation: Questions Answered
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Undergrad Energy Component 0 of 4 Momentum Vector P
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Undergrad Special Relativity: Constant Speeds or More Complex GRT?
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Undergrad Special Relativity vs Lorentz Transformation: Difference Explained
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Undergrad Is the four current in Relativity an invariant quantity?
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Undergrad Sending Signal from Planet Near Gargantua: A Thought Experiment
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High School Is Any Material Truly Incompressible Under Special Relativity?
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High School Time & Special Relativity: Is Time Object-Specific?
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Graduate Validity of theoretical arguments for Unruh and Hawking radiation
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Undergrad Transformation of the contravariant and covariant components of a tensor
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Undergrad A shot in the dark -- Need help understanding Special Relativity
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Undergrad Ligo Heat Dissipation: How Do They Protect Mirrors?
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Undergrad One Way Speed of Light: Is it Constant?
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Undergrad Struggling with a special relativity "paradox"
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Graduate Parallel transport of a 1-form aound a closed loop
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Graduate Christoffel Symbols in terms of a Change in Basis
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Undergrad Electric Field Directly Ahead of or Behind a Moving Charge
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High School Calculating Triangle Area in Relativity Theory
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Undergrad Ricci Tensor: Covariant Derivative & Its Significance
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High School Time in Cartesian Coordinate Systems: Math Q&A
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Graduate Schwarzschild Metric Geodesic Eq: Qs & Answers
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High School Reaching the Speed of Light: A Thought Experiment on Halving Distance Traveled
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Undergrad Explanation of Galilean transformations
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High School What path does matter take after entering a black hole?
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Graduate Kinnersley’s “photon rocket” and gravitational radiation
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High School Does Godel's Rotating Universe Theory Suggest Time Repeats Itself?
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Graduate Weyl transformation of connection and curvature tensors
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Undergrad Why does Special Theory of Relativity leave out Potential Energy?
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Undergrad Gravitational interaction between three bodies
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Undergrad An observer passing the event horizon of a black hole (Part 2)
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Graduate Why Does the Energy-Stress Tensor Exclude Other Forces?
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High School Eddington's 1919 Eclipse: Photon Deviation & Redshift
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Undergrad Event Horizon Gravity: Infinite or Not?
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Undergrad Can Time Dilation Probes Redefine Our Understanding of Space and Time?
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High School Interstellar Movie: Light Reflection on Planet Close to Event Horizon
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Graduate Detecting Gravitational Waves: Antenna Sensitivity & Weber Bars
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Undergrad What is the Invariant Mass of Two Perpendicular Photons?
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Undergrad Energy Density in SR Energy-Momentum Tensor
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Undergrad Solve E = mc^2 & Time Dilation Equation
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Undergrad Getting Used to Killing Vector Fields: Explained
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High School Do Perpendicular Velocities Affect Relative Motion?
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Undergrad Time Dilation Effects of Travel to Star 10ly Away
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High School Is Time Dilation Indicating the Existence of Multiple Times?
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Undergrad Special Relativity Controversy: Solving the Paradox
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Undergrad The Tensor & Metric: Spacetime Points & Momentum Flux
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High School The Fourth Dimension: A Measurement of Aging
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Undergrad An observer passing the event horizon of a black hole
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Undergrad Deriving the 4-momentum of a free particle moving in curved spacetime
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Undergrad Time Dilation: Clock A & B Confusion
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High School Agreeing on relative separations and accelerations
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High School Why Does Matter Fall to Center of a Mass? Explained
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High School Apparent contradiction in time dilation
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High School Development of Special Relativity
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High School Time Travel: How Does a Fast Electron Experience Sunrise?
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Undergrad Relativistic Notation in Waves: Confusion Solved
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Graduate Lorentz Transformations: Why We Need the Same $\gamma$
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High School Relativistic explanation of electromagnetism
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Undergrad One Way Twin Revisited: Understanding Tim & Tom's Watches on Home & Northbound
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Undergrad LIGO Gravitational Wave Detection News
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