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 Speed of light vs speed of time
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Graduate Question about Einstein's Original E=mc^2 derivation
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Graduate Why Does the Traveling Twin's Clock Show Less Time in the Twin Paradox?
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Undergrad Cutoff Point for Relativistic Effects
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Graduate Crossing the Event Horizon of a Black Hole
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Graduate Telling if a reference frame is moving or at rest
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Graduate Superluminous Objects and Black Holes
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Graduate Alcubierre drive has trouble with quantum effects
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Graduate Can Black Holes Exist? Physics Community Viewpoints
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Graduate Mobile communication with electromagnetic waves and theory of relativity
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Graduate Do particles without a rest mass bend spacetime?
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Graduate Detecting Gravity Waves Through Matter-Antimatter Collisions
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Graduate Properties of Mass in Curved Space-Time
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Graduate How Do Accretion Disks Around Black Holes Form and Function?
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Graduate What is the minimum mass required to distort space and time ?
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Undergrad How is E=mc^2 connected to the speed of light?
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Undergrad Where does gravity get its energy from?
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Graduate 1905 paper Does the Inertia of a Body Depend Upon its Energy-Content?
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Graduate Understanding "Linearity" in Hawking & Ellis' Subspace of T_p
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Graduate Is Time Altered in a Gravitational Field?
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Undergrad Understanding Gravity and Mass: A Confusing Concept Explained
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Graduate Physical meaning of index gymnastics
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Graduate Understanding the Lemaitre metric
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Graduate Gravitational waves and gravitation
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Graduate How can we say there is Zero G force in space what about SUN's G ?
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High School Learn About the Alcubierre Warp Drive: A High Schooler's Guide
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High School Special Relativity and Distance/Space
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Graduate Lorentz Contraction: What really Contracts?
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Graduate Dust filled universe, is there a type of tension defined?
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Undergrad Understanding Time Dilation in Special Relativity
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Graduate The doppler effect and time dilation context
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Graduate Could Our Universe Be Part of a Larger Cosmic Cycle?
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Graduate Unique Distance on Pseudo-Riemannian Manifolds: Riccardo's Question
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Graduate What Aspects of General Relativity Challenge the Speed Limit of Light?
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Graduate Is your velocity constant in space-time?
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Graduate Einstein Vacuum Equation, Vacuum Constraint Equations
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Graduate Isn't working with the relativistic Lagrangian AWFUL?
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Graduate A bunch of LHC relativity questions
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Graduate Relativistic mass,momentum and energy.
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Undergrad How does the swimmer analogy explain the movement of light in the ether?
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Undergrad Understanding Momentum: What Happens When Insufficient Force is Applied?
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Undergrad Relative Velocities A & B: 5MPH Each
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Graduate How Does Relativity Affect Time Perception for Astronauts and Earth Observers?
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Graduate Steel bar bisected by event horizon
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Does a black hole cause light to move faster?
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Graduate A simple SR question, but confusing to me
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Graduate Faster than the speed of light
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Graduate Using light to see the world requires speed of light to be maximum?
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Graduate If the sun suddenly dissapeared.
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Undergrad A & B's Time Paradox: A Space-Time Conundrum
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Graduate Issues with advanced Eddington-Finkelstein coordinates
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Graduate Understanding Gravity with Embedding Diagrams
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Undergrad Question about light speed (is velocity cumulative?)
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Graduate Dust filled universe but dust is a real field.
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Graduate Quick question about gravity/time dilation
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Graduate The photon gas in the curved space
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Graduate Relativistic Boat: Does It Float or Sink?
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Graduate Rotating Black Hole: Is it Logical?
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Graduate Where s the moving train on the embankment?
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Graduate Tensor Index Exercises: Find Extra Resources Here
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Undergrad Weak and strong equivalence- what is the difference really?
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Graduate Gravity Clock: Pendulum Periods for Observers A & B
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Graduate Multibody system in general relativity
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Graduate Relativistic scattering Lab and CM frames
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Graduate Questions About Absolute/Relative Velocity and Time
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Graduate Find the Proper Time Extrema: Twin Paradox Explained
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Graduate Is Spacetime the True Cause of Inertia? Revisiting Newton's Bucket Experiment
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Graduate Is the Doppler effect for atomic spectra a purely realistic effect?
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Graduate Lorentz contraction of a light pulse
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Undergrad Target Distance and Light Travel: The Impact on Spatial Position
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Graduate Light & Relativity: 2 Questions Answered
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High School Seriously, why can't I go faster than the speed of light?
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Undergrad Why does a travelling twin age slower but not get shorter?
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Graduate Twin Paradox: Can Barbara Reach XEON Alive?
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Graduate Gravitons are still theoretical, of course, but I'm not quite sure how
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Graduate How Does the Curvature of Space Affect Our Perception of Gravity?
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Graduate Hilbert's Derivation of Field Equations?
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Graduate The Principles of Relativity - Help Kindly Requested
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Graduate Relativistic velocity limitations
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Graduate Gravitational Waves and the Role of Photons in LIGO
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Undergrad Acceleration and time question
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Graduate Einstein equation point mass solution
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How to pronounce 'Christoffel'
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Graduate Tensor Confusion: Lambda & Partial Derivatives
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Graduate Singularities in colliding black holes
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Graduate Unravelling Metrics of Spacetime
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Graduate Deriving Equations for Light Sphere in Collinear Motion - O and O' Observers
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Undergrad Explaining Special Relativity's Time Dilation
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Graduate Thoughts about Causality and Paradoxes
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Graduate Uniform background dust of plank mass black holes.
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Undergrad Thought experiment about Simultaneity
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Graduate Where did Einstein say :mass curve space/time ?
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Graduate Time dilation and space travel
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Graduate Is energy conserved in general relativity?
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Graduate Relativistic gravity incomplete? Big Bang singularity
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Graduate Is Faster than Light travel impossible?
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Undergrad Would we as humans ever be able to travel close to the speed of light?
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Graduate GR in a universe without matter or energy
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Graduate 2 black holes, 2*M -> 1 b.h., 2*M - f*2*M?
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Undergrad Solving Velocity Addition Formula: 0.75c+0.75c = 0.96c
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