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.
Undergrad Does time dilation cause the speed of light to be invariant?
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Undergrad Geometric Interpretation of Einstein Tensor
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High School Photon: momentum without mass?
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Graduate Is Newton's third law of motion consistent with GTR?
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High School Trajectory of a photon in a moving box
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Undergrad Conditions necessary for a human to survive event horizon
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High School The Paradox of Mass Distortion in Collider Experiments
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Graduate Topology of Spacetime: Can Singularities and Fermions Co-exist?
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High School What happens to the matter inside a black hole when it dies?
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Undergrad Gravitational wave time variation
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Undergrad Solving Determination of Locally Inertial Coordinates
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Undergrad Proving Killing Vector of Static Spacetime - David
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High School Ether and Michelson-Morley experiment
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High School How can a light clock tick once per meter even when in motion?
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Undergrad Solving General Relativity's Schwarchzild & FRW Metrics
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Undergrad How can we visualize spin being invariant?
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Undergrad Time in gravitational reference frame?
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High School Do Gravity Waves and Sound Waves Share Frequencies?
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High School Why do objects always revolve around each other in space?
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High School Solving Special Relativity Problems: Interval vs Lorenz Equations
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Undergrad Einstein's E=mc^2 equation -- question....
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High School Solving the Paradox of Rope: Transmission of Info in GR
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High School Moving clock as seen by an observer at rest
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Graduate What is causing time dilation: Speed or acceleration?
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High School Einstein’s equivalence principle for a collapsed star
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High School Unraveling the Equivalence of Energy and Mass: A Scientific Perspective
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High School Just a Doubt -- can the Space Time Fabric be ripped or broken?
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High School "Forced Conclusion" in Train-Embankment Experiment
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High School Constancy of the Speed of light
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Undergrad Relativistic Kinetic Energy Derivation
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Undergrad What is the source of curvature in an accelerating frame?
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Undergrad Do the Energy-Momentum Transformations apply to Photons?
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Undergrad Time Dilation in Hypothetical Faster-than-Light Travel
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Undergrad Special theory of relativity argument
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High School Quantum Entanglement: Changes at E1 & E3 Affecting Particle A
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Undergrad Understanding Lorentz-Transformability & Invariant Operations
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High School Using Lorentz Transformations vs Time Dilation/Length Contraction
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Undergrad How Do Orbiting Black Holes Generate Gravitational Waves?
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Undergrad Relativistic Momentum: 880kg Spacecraft at 1/2 C
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Undergrad Relativistic Mass Oscillation & Gravitational Field at R
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Undergrad Relativity of Simultaneity: An Overview
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Undergrad Understanding the GR Twin Paradox: Explained in a Concise Video
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High School Four-position: not really a four-vector?
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Undergrad How Do Lorentz Transformations Affect Perceptions of Time and Distance?
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Undergrad Earth as Inertial Ref. Frame: Test Relativity's Precision
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High School DeBroglie Wavelength with Relativistic Electron
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Undergrad Lorentz Transformation: Writing in Different Forms
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High School Speed of light -- Why is it constant?
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High School What happens to the final image of a person falling into a black hole?
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High School Turning Einstein’s train thought experiment on its head
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High School Distinguishing inertial reference frames
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Special Relativity Comic Strip: Today's Edition
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Undergrad Project Greenglow: Is Anti-Gravity Possible?
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High School What is the gravitational effect an accelarated mass?
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High School Calculating c in Thought Experiments: Q&A for Physics Community
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Undergrad How does a photon view the universe?
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Undergrad Experiment to test the basic assumption of SR
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Undergrad Relativity: Coming to Terms 1: Starting Assumptions
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High School Where is the slowest point in terms of time?
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Undergrad Why Does Time Dilation Occur in the Light Clock Thought Experiment on a Train?
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High School Time Dilation: When Earth or Light Speed Travel?
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High School Can Force Change Mass w/ Constant Velocity?
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Graduate Time reversal of gravity and Richard Feynman lecture on past and future
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Undergrad What Actually is Length Contraction?
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Undergrad Not understanding Hulse Taylor period shift calculation
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High School Name of experiment confirming mass-gravitational attraction?
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High School Discovering Gravity & the Last Step of General Relativity
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High School Gravitational Waves @ relativistic speed?
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High School Speed of Light Lowered in Vacuum: Consequences for Relativity?
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Undergrad Momentum & Energy Correlation: Is it Valid?
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High School Derive Vacuum permeability and permeability....
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High School How would Ether simplify science?
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Undergrad Non-relativistic limit of the Lagrangian
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High School How does time dilation affect travel time at different speeds?
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High School Can We Reach Speed of Light w/ Model?
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Undergrad Cartesian Coordinates Interpretation in GR?
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Undergrad Is Gravity inertia, acceleration or curvature in GR?
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High School A couple of questions on mass increase
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Undergrad Relativity Theory: General & Special Contexts
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Graduate CED: Solving the Full-blown Classical Electromagnetism Problem
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Graduate Israel junction conditions for simple metrics
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Undergrad Shuttle Orientation in Orbit: A GR Perspective
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Graduate Riemannian Manifolds: Local Cartesian Coordinates Explained
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Undergrad Can Anyone Help Understand Einstein's 1905 Derivation of E=mc^2?
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High School Can FTL communication violate causality without one party moving?
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Undergrad Equivalent statements of the weak energy condition
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Undergrad Confusion about Dual Basis Vectors: Why are these two relationships equal?
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High School Gravity of the Earth decreases if it stops spinning?
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High School Is special relativity incomplete?
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Undergrad Asymmetric Tensor: Overview & Uses
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High School Amount of energy to get a spaceship to 99% C
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Graduate How Does Arm Length Affect Doppler Shift Measurement?
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Undergrad Deriving the Lorentz formula from my own example
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High School How do I define a second properly?
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Undergrad Using the metric to raise and lower indices
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High School What is the amplitude of a gravitational wave at the source?
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Undergrad Dimension Check of Einstein's Field Equations
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Undergrad Are there any alternative interpretations to GR?
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High School Gravity waves And entanglement quesro
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High School Einstein Train Experiment Consequence: Will Observer A be Shot?
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