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 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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Undergrad Velocity, Gravitational Pull & Creator's Movement: Relation?
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High School Relativistic tips of a propeller
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Undergrad Solve Ra[bcd]=0: What Permutations Work?
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Undergrad Independence of speed of light and velocity of source
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High School Can Time-Reversed Gravitational Waves Be Detected or Recovered?
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Undergrad Do Event Horizons Really Exist?
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High School Gravity on Earth: Explaining Trampoline Warping & Tides
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High School General Relativity and Gravity?
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Undergrad Reducing Riemann Components to 20 - Step-by-Step Guide
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Undergrad Gravitational Waves & Gravitational Pull: Explored
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Undergrad Is the Linear Ehrenfest Paradox Accurate for Circular Motion?
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Undergrad Calc Precession of Mercury Orbit: Stress-Energy Tensor=0?
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High School Gaussian Curvature and Riemmanian Geometry
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Graduate Can Interstellar Travel Be Achieved Through Advanced Relativity Calculations?
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High School Does LIGO's Detection of GW150914 Confirm General Relativity?
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Undergrad Solving Tangent Plane Approximation in Einstein Gravity
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Undergrad Learn About Tensors: Simple Explanations & Examples
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Undergrad Isolated/Closed Systems: Relativistic Thermodynamics Explained
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Undergrad What Causes Different States of Mass and Energy in E = mc²?
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High School Cosmic Ray Muons: Finding Experimental Data for Special Relativity
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Undergrad LIGO and speed of propagation of gravity
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Undergrad What Happens to Time in the Twin Paradox of Relativity?
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High School Theory of Relativity: Time Dilation & Age Difference
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Undergrad What is the resolution to the problem with E cross B field and E>B?
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Undergrad Did Scott Kelly age less than his twin, or more?
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Graduate Effect of Blue-Shifted GWs on Particles
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Undergrad Energy of a Rotating Binary system
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Undergrad Why Does GR Not Allow Global Reference Frames?
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Undergrad Special relativity thought experiment
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High School Brian Greenes' Tornado Analogy
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Undergrad Do gravitational waves transmit energy in all cases?
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Undergrad Gravitational Waves: Time, Synchronization, Speed
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Undergrad Relativity & Uncertainty: Exploring the Impossible
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Undergrad Twin Paradox Resolution -- Inertial frames
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Undergrad Frame-Independent Set of Events?
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Undergrad Effects of Stretching Space Time: Questions & Answers
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Graduate Frame of Reference & Time: Defining Time Without a Ref.
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Undergrad Does mass become infinite near the speed of light?
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Graduate ALIGO interferometer sensitivity
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Graduate Can Light Move Inside a Black Hole Event Horizon?
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Graduate Are Gravitational Waves and Waves Transmitting Curvature Changes Different?
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Graduate Understanding a0 in Paper: Page 9 of 1405.1283v1
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Undergrad Anthropic Lower Limit on Cosmological Constant
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Graduate Spacetime Engineering by Superposition of GWs: Feasible in Theory?
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Graduate Force based explanation of gravity waves still possible?
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Graduate How did LIGO estimate the distance of the black holes?
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Undergrad Shooting Video on Planet Z Near a Black Hole
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Graduate LIGO GW150914 Data Release & Tutorial
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Gravitational waves: who gets the Nobel Prize?
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Graduate Gravity & Photon Trajectory: Is Wavelength a Factor?
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Undergrad Is Gravity Really the Weakest Fundamental Force?
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High School What's the reference frame for the universe as a whole?
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Graduate Perihelion Shift in Near-Circular Orbits: 6πm/a + Higher Order Terms
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Undergrad Travelling (at) the speed of light away from a lightsource
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Graduate Proof for Lorentz Transformation of Momentum: Step Explained
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Graduate Time dilation and acceleration due to gravity
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Graduate Is there a smallest possible gravitational wave?
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Graduate A drunk falling into a black hole
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Graduate Simple derivation: sphere contracting under gravity
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Graduate Equivalence principle and mass
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Graduate Calculate Parallel Transport: Get Out of Logical Loop
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