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 Strong and weak gravitational Fields
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Graduate Limit to a gravitational field?
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Graduate Who gets there first? Speed of light.
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Graduate Alcubierre Drive: Faster Than Light Travel Possible?
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Graduate If 2 spaceships travel at the speed of light
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Undergrad Explaining Length Contraction with the Light Clock Argument
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Graduate What would it be like to fall into a black hole?
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Graduate Paradox of gravitational potential energy
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Undergrad Understanding Simultaneity in Special Relativity
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Graduate What Would a Photon Perceive in the Universe?
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Graduate Why general relativity and quantum mechanics are incompatible?
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Graduate Tidal forces and geodesic deviation: a principle question
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Graduate Break the upper limit: 2x speed of light?
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Graduate Why does time have a minus sign in the SR interval equation?
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Graduate Space-time transformations with different shape
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Graduate Relativity and Quantum's multy universes
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Graduate What happens when you apply a force in space over infinite time?
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Is Time Travel Really Possible?
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Graduate Does a Rod's Size Change When Rotating at the Speed of Light?
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Graduate Matter-antimatter ship in GR clock paradox - fuel consumption
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Undergrad What happens to matter inside a black hole?
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Graduate Fitzgerald -Lorentz contraction
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Undergrad Can You Measure the Speed of Light in Water and Move Faster Than It?
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Graduate Lorentz transformation, Einstein transformation,Lorentz-Einstein transformation
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Graduate Twin Paradox: Question on the Effects of Speed and Gravity on Time
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Graduate Derivation of the Special Theory
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Graduate Does the theory of relativity include angular motion?
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Graduate Relativity equation - calculating the algebraic limit
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Graduate What would happen if we rode on a light beam?
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Graduate Special relativity simulation issue
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Undergrad Equal and opposite electric fields?
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Graduate Does Lorentz Contraction Affect Perceived Distances at Near-Light Speeds?
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Graduate Does superposition hold for relativistic particles?
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Graduate A question regarding relativity and information transport
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Graduate Time dilation limit? (how much does time dilate at c )
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Graduate Force-free motion from a busted Lagrangian
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Graduate Why is the time dimension multiplied by c^2?
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Graduate Light cones in faster than light travel
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High School Einstein's Equation: E=MC2 Explained
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Graduate How can the Rindler metric be derived for a uniform gravitational field?
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Graduate Bouncing light question faster than c?
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Graduate The Mysteries of Light: Understanding its Characteristics and the Speed Limit
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Graduate Gravitational potential from QM-like phase
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Graduate Metric Tensor Question: Special Relativity
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Graduate Proving that the scalar product is invariant
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Undergrad What physically happens to the object as it increases in mass
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Graduate Bondi k and everyday clock synchronization
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Graduate Is Faster-than-Light Travel Possible with Constant Acceleration?
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Graduate Uniqueness of solutions to EFE?
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Graduate Comparing Charge and Gravity: Do They Follow the Same Rules of Motion?
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Graduate Would the Pendulum's Shadow Vibrate at PHz on a Moving Wall?
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Graduate Why Does Understanding GPS and Relativity Matter for Black Hole Exploration?
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Graduate Principle of relativity and energy?
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Graduate Does charge change with velocity?
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Graduate Watching young's double slit experiment in moving frame
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Graduate Synchronization Gauge Definition | What is it?
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Graduate Conservation of Energy in GR - Is Potential Energy Still Valid?
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Undergrad Gravity as Expansion: How Do Orbits Stay Constant?
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Graduate How does light travel at its speed without infinite mass?
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Graduate What Are Closed Timelike Curves?
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Graduate Massless Particles: At Rest & Why?
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Graduate Twins Paradox in a Quasi-Uniform Gravitational Field | A Sci-Fi Exploration
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Undergrad GRAVITY its time we figured it out.
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Graduate Understanding the Relationship Between Energy, Mass, and Momentum in Relativity
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Graduate Does massless particles experience gravity
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Graduate Riemann curvature tensor as second derivative of the metric
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Graduate How Does Photon Momentum Exist Without Mass?
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Graduate Does Light Bend Spacetime and Have a Gravitational Pull?
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Graduate What is the cause of spacetime curvature?
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Undergrad Do Clocks Run Slower in Weaker Gravitational Fields?
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Graduate Robertson-Walker metric in higher dimensions (and problematic Riemann tensor)
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Graduate Sum of the forces and torques = 0
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Graduate What exactly is stopping us from unifying GR and quantum mechanics?
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Graduate What is the Origin of the Spatial Metric in Non-Inertial Frames?
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Undergrad Speed of civilisation development
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Undergrad Relative Velocity: Henrik's Understanding
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Graduate Effect of acceleration on space-time fabric
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Undergrad What is the Reason Behind the Speed of Light?
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Graduate Is Time Travel Possible and Already Happening in Our World?
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Graduate How Do Covariant, Contravariant, and Mixed Tensors Transform?
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Graduate Matrix Representation of Tensors?
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Graduate Is the ds² Expression for a Uniform Gravitational Field Correct?
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Graduate A new angle on the Right Angle Lever Paradox.
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Graduate What's the G-forces in a black hole event horizon?
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Graduate Revised Twin Paradox: What's Wrong?
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Graduate Another Schwarzschild question
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Graduate Is this a valid derivation of E=mc^2?
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Graduate A question about the speed of light puzzles me
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High School Michelson-Morley experiment proves nothing
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Graduate Understand Einstein Hole Argument: Norton's Expln & General Covariance
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Graduate Gravitational Theory, Don´t grasp it.
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Graduate How is velocity defined in relativity and who measures it?
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Undergrad What Makes the Speed of Light So Special in Physics?
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Graduate Bends in Space-Time vs Invariance
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Graduate How are Coordinates Defined in General Relativity?
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Graduate Another speed of light question
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Graduate Do Extra Dimensions Really Matter Before String Theory?
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Graduate Derivative of metric tensor with respect to itself
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Undergrad How does Einstein's model explain the relationship between gravity and energy?
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Graduate How two clocks can each run slow in the other's reference frame
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