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 Atomic clock used in spaceships
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Graduate Lorentz Transform Derivation questions
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Graduate A basic question about the use of a metric tensor in general relativity
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Graduate What are the Christoffel symbols for the Schwarzschild metric?
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Graduate How can we define the induced metric on a brane?
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Graduate What's wrong with these pictures?
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Undergrad Time & Mass: Newbie Questions from a Spaceship Observer
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Graduate Does Inflation Affect the Perception of Time in Expanding Space?
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Graduate Hawking Radiation and the Hologram Theory
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Graduate Raychaudhuri equation for shear
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Graduate The velocity of light in the medium
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Graduate What Are the Differences Between Poincare and Reparametrization Transformations?
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Graduate If an object moves towards you at light speed, what would you see?
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Graduate What Are Half-Integer-Spin Geons and Their Significance in Nature?
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Graduate Do Massless Particles Cause Gravitation?
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Undergrad Is the concept of dynamic space and the effects of gravity on light measurable?
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Graduate Muons experiment, strange logic
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Graduate Confirming Time Dilation Without Subatomic Particles: Steven's Question
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Undergrad Time Travel Paradox: Can It Happen?
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Graduate Does the idea of inflation in the universe contradict relativity?
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Graduate Can a Moving Interferometer Cause Photons to Miss Their Target in Space?
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Graduate Time-like or Space-like Events: Analyzing the Train Diagram
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Graduate Geodesic and MiSaTaQuWa equation of motion
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Graduate Calculating proper time using schwartzchild metric
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Graduate Differentiation of a vektorfield
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Graduate Can changing the metric in GR result in different spacetimes?
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Graduate Help Covariant Derivative of Ricci Tensor the hard way.
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Graduate Trouble understanding MTW particulary noncoordinate basis
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Is Video Correct? What's Your Opinion?
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Graduate Calculating how light falls under gravity
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Graduate Covariant and noncovariant Lorentz invariants
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Graduate Non-geometric approach to gravity impossible?
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Graduate Relativistic kinetic energy and force.
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Graduate FRW universe, expanding space or spacetime?
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Graduate Acceleration of a static test-particle
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Graduate Black Hole Singularity Blue Shift
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Graduate Relative energy of a black hole.
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Graduate The Role of Gravitation in Particle Physics: Beyond the Everyday Interactions
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Graduate Entering supermassive black holes
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Graduate Cosmological Redshift: Equation & Universe History
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Graduate Momentums and Curve Our Space is clearly a little weirder than expected
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Graduate Confused by proof of Lorentz properties from invariance of interval
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Graduate Proper definition of world lines in Galilean and Minkowskian spacetime
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Graduate What do I do once the Field Equations have been assembled
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Graduate Does a Yank of 100 Newton Meters Affect a 5 Kg Rod?
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Graduate Relativity and The Stopped Clock Paradox
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Undergrad Question on movement speeds relative to an observer.
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Graduate Please Explain to me this thought experiment
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Graduate Galilean principle of relativity
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Graduate Precise instrument (w,h,l) after length contraction still working?
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Graduate Can flat spacetime model Black Holes?
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Undergrad GeekGeodetic Effect Explained: Proving Relativity
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Graduate Generators for Lorentz transformations
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Graduate Potential Energy of Length Contraction
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Graduate What is the true nature of motion?
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Graduate Coordinate and proper time animation
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Graduate Windmills and the Speed of Light
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Graduate Time dilation from length contraction
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Graduate Confusion about synchronization
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Graduate Calculating Relativistic Velocity from Work and Mass
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Graduate What are your best arguments for time dilation, so duration is different ?
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Graduate Why I doubt the generality of Gauss' law: A Gaussian sphere 1 light year across
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Graduate Classification of events and curves in Minkowskian spacetime
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Graduate Motion of light in a gravitational field
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Graduate Are Christoffel symbols measurable?
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Graduate What Is the Estimated Entropy of the Final Crunch in a Closed Universe?
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Graduate Time as Parameter in QM vs Coordinate in QFT
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Graduate Infinite Slab of Mass: Black Hole Effects
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Undergrad Coordinate time and proper time.
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Graduate Can the Speed of Light be derived?
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Undergrad Variation in speed of light - how does it accelerate after being slowed down?
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Graduate Does Spacetime Always Remember Events?
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Graduate How does GR handle metric transition for a spherical mass shell?
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Graduate Is there a relativistic version of the work-energy theorem?
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Undergrad When is it ok to use non-relativistic equations?
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Graduate Length contraction near the speed of light
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Graduate Language in which Einstein intuitively discovered GR
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Graduate What's Wrong With Black Hole Thermodynamics?
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Graduate What is general relativity in one irreducible simple sentence?
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Graduate Massive observers with light speed when crossing the event horizon
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Graduate Relative Black Holes: Can Particles See Universes of Them?
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Graduate One way speed of light and simultaneity
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Graduate Writing Tensor Equations in Matrix Form
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Graduate Lapse function and spacetime splicing
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Graduate Twin Paradox Explained: Long Outbound & Short Inbound Leg
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Undergrad Using Mathematica for 4 vectors and etc.
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Graduate When Does the Future Stop Being Mapped Out in Special Relativity?
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Graduate Is your information destroyed when you reach the singularity
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Graduate Time, simultaneity, black holes & entropy
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Graduate Time flow on other planets or galaxies
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Graduate Escaping a Black Hole's Event Horizon
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Why isnt a bh singularity a reference point?
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Graduate Explaining time dilation from length contraction easier
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Graduate BREAKING NEWS: Error Undoes Faster-Than-Light Neutrino Results
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Undergrad Relativity of Simultaneity & C Invariance Doubts
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Graduate A simple resource about tensors
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Graduate Anomalous Precession of Mercury's Orbit: Facts & Theories
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Graduate Is there a direct relationship between time and space in special relativity?
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Graduate Can Quantum Mechanics Explain True Randomness?
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Graduate Multiple images in gravitaional lensing
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