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 Change in Volume V(t) of Sphere in Free Fall
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Graduate Is Time Dilation Just an Illusion?
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Graduate Is Event Sequencing Relative in the Theory of Manifolds?
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Graduate Is Einstein's Gravity Theory Overly Simplistic in Explaining Space Curvature?
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Graduate Everything depends on gravity and mass
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Graduate The Speed of Gravity: Debated Answers
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High School Need help understanding something. About light speed - Thanks
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Graduate Understanding the Spacetime Fabric
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Graduate Minkowski-minkowski thin shell paradoxon?
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Graduate Causality in GR (was Is event sequencing relative? )
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Graduate Alternative Lagrange's Equations
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Graduate How Spacetime is Stretched/Compressed: Experiments?
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Graduate Cosmological Redshift in FRW Coordinates – Energy Conservation & Time Dilation
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Graduate Repositioning clocks: continuing from the switch paradox
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Graduate Help with Lorentz Transformation
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Graduate What Defines a Null Coordinate in Spacetime Metrics?
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Undergrad Understanding Einstein's Theory of Relativity
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Graduate What Would Happen if Usain Bolt Ran at the Speed of Light?
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Graduate Layman's doubts about Gen Relativity
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Graduate Nothing can travel faster than light
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Undergrad What Would Happen if an Object Fell in a Vacuum?
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Undergrad Noob question: If you travel as fast as light, time freezes so
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Graduate Brown's derivation of Thomas rotation
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High School What was the motive of michelson morley experiment
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Graduate Why is the first term on the right-hand side of this equation transposed?
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Graduate How Does a Cosmic Ray Measure Temperature Changes in the Sun?
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Graduate Mass increase from high velocity Q
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Graduate How long does it take to go 10LY?
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Graduate Why Does Time Differ Between Astronauts and Earth in Relativity Theory?
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Graduate How Do Minkowski Diagrams Illustrate Lorentz Transformations?
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Graduate Noether currents associated with diffeomorphism invariance
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Graduate White Holes & Eternal Black Holes: Stephen D.H. Hsu
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Graduate Could an object survive passing through two intersecting black holes?
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Graduate Simultaneity of Events in Different Inertial Frames
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Graduate A bit of a confusion regarding light, speed of it
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Undergrad CD: Does gravity cancel out acceleration?
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Undergrad Questioning the Physics of a Hypothetical Cord
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Graduate Spacetime Symmetry: Find Quick Answer to Simple Question
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Graduate Existence of solutions to Einstein's equation
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Graduate Is physics plain classical and Relativity an illusion?
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Graduate Can We Really Predict the Future by Exceeding the Speed of Light?
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Graduate The Collision Clock Experiment
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Graduate The Switch Paradox: Resolving Relativity of Simultaneity
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Graduate Schwarzschild solution without matter
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Graduate Relative velocity and work done
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Undergrad Quick length contraction question please
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Graduate What Causes Time Dilation Between Two Objects?
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Undergrad Can a Light Spot Go Faster than c?
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High School How Can We Truly Measure the Speed of Light?
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Graduate Is One-Form Multiplication Commutative?
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Graduate How is the Minkowski 4-space equation connected to hyperbolic functions?
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Graduate The mass of an object warps/bends/disturbs spacetime. But does the
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Graduate Making sure events are simultaneous in S'
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Graduate Is there a proof of parallel universes?
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Graduate Thin shell velocity is greater than speed of light?
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Graduate Relativistic Effects on the E-field
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Graduate Is the Lorentz force invariant under Lorentz transformations?
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Susskind Lectures on General Relativity
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Graduate Mass increase at relativistic speeds
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Graduate Fermats P & Gravitational Lensing
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Graduate List of people who understand relativity
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Graduate Calculating the binding energy of a black hole
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Graduate Do train gaps appear smaller in motion?
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High School Does the Earth move around the Sun?
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Graduate Speed of object emerging from wormhole
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Graduate Does light must be wave-like in Einstein mirror clock thought experiment?
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Graduate BRS: Using geodesic congruences and frame fields to compute optical experience
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Graduate QM & Relativity: Can Photons Moving at Speed of Light Be Stationary?
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Graduate Defining Vector: Beyond Schutz's Treatment in G. Relativity
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High School Time Dilation Basics: What It Means for Space Travel
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Graduate Is Time Dilation Caused by Motion or the Fabric of Time Itself?
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Undergrad Can Both Observers Experience Time Dilation in the Relativity of Motion?
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Graduate Does Time Dilation Explain the Lack of Effects in Quasar Light Curves?
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Graduate Acceleration/Deceleration in SR
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Graduate Is there such thing as relativistic angular velocity?
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Graduate Electromagnetic stress energy tensor
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Graduate Ideas about black holes, light, and time.
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Graduate One dimensional collision of 2 unequal masses
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Graduate If photons don't have mass, why do their paths bend in a gravitational field?
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Graduate Understanding General Relativity: What Does it Take?
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Graduate Do Electrons Emit Lower Frequency Waves When Moving Very Fast?
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Undergrad The General Relativity Elevator Thing
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Graduate Amazing Experiment: Faster Than Light?
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Graduate Can an observer know he's in a black hole?
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Graduate What is Timelike? Detailed Explanation
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Graduate Time Dilation: Solving Brian Greene's Example w/ Math
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Graduate Interesting General Relativity Scenario
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Graduate Relativity says that there is no absolute simultaneity. Quantum
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Graduate Does electromagnetic radiation from pulsar stars
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Graduate Earth's Velocity in Space: Measuring Time Dilation
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Graduate Hyperphysics: Hafel-Keating experiment
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Graduate Does the speed of light slow down near a black hole?
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Graduate Is Einstein-Cartan Theory a Mainstream Extension of General Relativity?
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Graduate What Drives Time Forward in Our Universe?
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High School Speed of Light: Expert Answers to Your Questions
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Graduate Light Sphere Paradox: A Conundrum with No Solution?
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Graduate Is the summation notation for three equivalent expressions?
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Graduate Causality violation from FTL signaling within the same reference frame only?
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Graduate Null Hyperplanes & Cauchy Surfaces in Spacetimes
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Graduate Is the Painleve-Gullstrand chart consistent with the Schwarzschild solution?
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