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 Is Velocity Constant in the Instantaneous Rest Frame?
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Graduate Special relativity: local frames versus global frame in a loop scenario
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Graduate Should a stationary charge on the earth radiate?
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Graduate Can Black Holes Actually Die Out?
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Graduate Question re: time dilation equations
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Graduate Information Transfer and the speed of light
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Graduate Spacelike and Timelike singuralites
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Undergrad Einstein relativity- radiowaves when travelling at v>0.1c
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Graduate Laps and Shift Function: Understanding the Role of t^a in Wald's GR Book (p.255)
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Undergrad Faster than speed of light spaceship.
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Graduate Question about derivation of surface gravity of a black hole
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Graduate Faster than light / compress space
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Graduate Weyl Tensor Components in n-Dim Manifold: N=3?
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Graduate Gravitational time dilation, redshift and doppler
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Graduate Twin Paradox (by acceleration)
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Graduate Riemann tensor: indipendent components
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Graduate Derivation of Proper Time and Proper Space
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Undergrad Why can't we see the light before we turn on the bulb?
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Graduate Topography of spacetime over time.
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Undergrad Can Two Spaceships Perceive Faster-Than-Light Speeds Relative to Each Other?
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Undergrad What is Albert Einstein's Theory of Spacetime?
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High School What does E=mc^2 mean? How can it be used in an example?
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Undergrad Is acceleration relative? (In the same way that velocity is)
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Graduate Does an object's mass truly increase with velocity due to kinetic energy?
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Graduate Light speed thought experiment
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Graduate Does compressing a mass to a smaller sphere change the curvature of space?
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Graduate How Does Relativity Explain Light Behavior When Fired from a Moving Spacecraft?
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Undergrad Time Dilation: 1.25yr Trip at 2.40x10^8m/s
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Graduate Mach's Principle: Right or Wrong?
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Undergrad Do Gravitating Bodies Warp the Fabric of Space?
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Graduate How come massless photon has energy
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Graduate Conformal Spacetime: Paths of Photons & Massive Particles
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Undergrad Layman in search of help understanding relativity
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Graduate Confused about Euler-Lagrange Equations and Partial Differentiation
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Graduate How Does Zero Acceleration in One Frame Manifest as Nonzero in Another?
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Graduate Can you be in stable orbit inside a blcak hole?
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Graduate Absolute light speed or velocity or both?
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Graduate Time dilation where there is no net gravity?
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Graduate Gravitational Waves: Do They Bend Like Light?
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Graduate Different acceleration in an accelerating rocket?
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Undergrad In Ensteins theroy of gravity.when a cannon ball is fired up,it
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Graduate Einstein's Field Equation: 4D Spacetime & Cosmological Constant
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Graduate Can You Get a Cosmic Tan from Lights Across the Universe?
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Graduate Straight line through spacetime.
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Graduate Torsion and the conservation of angular momentum
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Graduate A clever cosmologist refutes relativity
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Graduate Relativistic Momentum: Please help me to see that it is conserved.
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Graduate Relativistic Effects: When to Consider v/c Ratios
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Graduate Why isn't the Cotton tensor identical zero?
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Graduate How can we use differential geometry to improve our understanding of SR?
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Graduate Motion and the Warping of Space
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Graduate Relative speed of light paradox
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Undergrad Relativity & Heat: Does Speed Increase Heat Needed?
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Graduate Gravity speed vs light speed experiment
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Graduate Acceleration inside an event horizon
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Graduate A ambiguous variation of Einstein-Hilbert action
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Graduate Length contraction (objects & space or objects only)
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Graduate Time Dilation/Proper Time Question
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Graduate Vacuum solutions, and Explicit source terms
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Graduate Trying to understand linear frame dragging
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Graduate Derivation of Relativistic Momentum
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Graduate Why is charge/current density 4 vector a twisted differential 3-form?
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Graduate Compact support of matter fields
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Graduate Raychaudhuri equation in Jacobson's paper (gr-qc/9504004) ?
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Graduate The speed of light and time dilation
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Graduate Conservation of momentum a universal truth
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Undergrad How does motion affect the potential energy of a spring?
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Graduate Relativistic centripetal force
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Graduate Need help explaining light speed limit to younger brother
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Undergrad Challenge to the 1st postulate
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Graduate Pound-Rebka Experiment: Understanding Gamma Ray Detection & Doppler Effect
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Graduate Struggling with the relationship between the Lagrangian L and the interval ds?
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Graduate Can Fermat's principle be applied to gravitational lensing?
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Graduate Time dilation in biological processes
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Graduate Is a zero Ricci scalar the defining characteristic of a 'flat' spacetime?
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Graduate I don't understand why your clock slows down
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Graduate Gravity and Time Dilation: Length Contraction and Mass Inflation?
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Graduate Do magnetic fields affect the speed of light in the Pound-Rebka experiment?
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Graduate Gravitational Field & Light Speed: Is Time a Scalar Quantity?
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Graduate Generality of theta=pi/2 in Schwarzchild
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Graduate Does the Universe spin (does it have an angular momentum)?
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Graduate Relativity vs Quantum Mechanics
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Graduate Energy in Schwarzschild geometry
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Graduate Mach's Principle and the Accelerating Universe
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Graduate BRS: The FRW Dust with E^3 Hyperslices - Discussion
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Graduate Gravity: Does it Really Exist? Physics & Math Explained
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Graduate Understanding Relativity: The Concept of Time and the Speed of Light Explained
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Graduate Albert Einstein's Theory of Relativity
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Graduate Do not believe this letter on gravitational radiation
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Graduate Stress-energy tensor diagonalization
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Graduate Poincaré Gauge Theory: Facts, Popularity, Flaws & Experiments
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Undergrad Understanding Mass-Energy Equivalence to Fdx and dm in E=mc^2
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Graduate What Are the Timelike and Null Coordinates Used in the Schwarzschild Metric?
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Graduate Gravity's Restoring Force - Explained
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Graduate Are Lorentz and Poincare insufficiently credited for special relativity?
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Undergrad Why aren't you accelerating when you fall
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Graduate Does the presence of mass affect the curvature and growth of space-time?
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Graduate Unraveling the Mystery of Gravity: The Role of Mass in Space-Time Distortion
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Undergrad Is there such a thing as the Null Speed in the concept of motion and relativity?
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Graduate Frame of reference of any observer
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