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 Meaning of E=mc^2: Are Mass and Energy the Same?
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Graduate Einstein's Summation Convention: Questions Answered
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Graduate Conceptual questions: Limit of energy?
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Graduate Twin's Paradox: Q&A on Acceleration, Velocity & Time Dilation
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Graduate Four amateur questions about gravity and general relativity
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Graduate Two paralel streams of electrons.
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Graduate Is There any impact of the concept of Einstein’s New Ether in science
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Graduate Rotating reference frames and acceleration
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Undergrad How Does the Twin Paradox Affect Aging in Space Travel?
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Graduate A Lot of Basic Question About Lorentz-Minkowski Geometry
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Graduate Solving Redshift of Two Kinds in Schwarzschild Metric
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Graduate What Are 'M-M' and 'N-N' Circles in Russian Physics?
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Graduate Charged particle、neutral particle will hit the ground simultaneously？
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Graduate Magnitude of Vectors in Special Relativity
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Graduate Orthogonality of timelike and null vector
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Graduate Momentum conservation in the twin paradox
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Graduate Movement of Mass: Constant Distortion Since Universe Began
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Graduate Frequency, Velocity and Wavelength of Light
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Graduate Using parallel propagator to derive Riemann tensor in Sean Carroll's
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Graduate Schwarzschild metric in terms of refractive index
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Figured Out: No Question Here!
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Graduate Forces in relativistic rolling motion
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Graduate Quick check as to space-like and time-like
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Undergrad Relative velocities and the speed of light
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Graduate Electron orbital the earth will radiate?
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Graduate Types of experiments conducted to detect the speed of light After M&M
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Undergrad Schwarzschild Radius Explanation?
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Graduate Changing Dot Product to Simple Multiplication
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Graduate What Causes Length Contraction in Relativistic Speeds?
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Graduate Coordinate and dual basis vectors and metric tensor
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Graduate Asymmetric photon interaction with gravity?
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Graduate Doppler effect in accelerating frame.
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Undergrad Speed of Light vs Speed of Pool Ball Momentum
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Graduate How Does Time Dilation Affect Photon Transmission in Relative Motion?
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Graduate Thought experiment with one photon
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Graduate Are There Limitations to the Proven Accuracy of GR and SR?
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Graduate Two Laser Emissions: Resolving Contradiction
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Graduate Space-Time Warping Imaging at 1T fps - Ramesh Raskar
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Graduate Is light slowed down when passing through a tube that exerts gravity?
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Graduate Black holes and time invariance.
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Graduate If there was a region of space-time shaped like a Mobius Strip
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Graduate Curvature of space and spacetime
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Graduate How Critical Are Relativistic Effects in GNSS Accuracy?
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Graduate Why does the frequency of a light clock change when it is accelerated?
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Graduate Time Machines Create Wormholes? | EFE
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Undergrad Question about terminology: ch = cosh?
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Graduate Ladder Paradox/General Relativity?
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Graduate Timelike and Spacelike Four-vectors
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Graduate Observing a cube approaching a black hole
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Graduate How do we parallel transport a vector?
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Graduate Simultaneity at Speed of Light: Twin Paradox Explained
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Graduate Is acceleration due to gravity a 4-vector?
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Graduate Lienard-Wiechert potentials
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Graduate How Do Black Holes Exert Gravitational Influence Beyond Their Event Horizon?
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Graduate Observers in circular orbit-Schwarzschild space-time
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Undergrad Mechanics: Change of Reference Explained
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Graduate Is the space-like distance to a black holes event horizon infinite?
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Graduate Locally Maximally Symmetric Spacetimes
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Graduate Relativistic transverse doppler shift
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Graduate Black Hole and Electric Charge
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Graduate Understanding the Backward Movement of Light in Earth's Reference Frame
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Graduate Light Entering Black Hole: Hawking Radiation Explained
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Graduate Explanation of EM-fields using SR
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Undergrad Space and the velocity of light
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Undergrad Special relativity and time dilation
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Graduate Spacetime diagram drawing problem
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Graduate Causality and FLT a time reference consideration
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Graduate This is a thought experiment in relativity, can you try to solve this
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Graduate Gravitation as varying density of a space-propertime manifold?
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Graduate Question about doppler shift in relativity
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Graduate Index notation of matrix tranpose
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Undergrad Are the transformations just observed ones or real ones?
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Graduate Is it impossible to separate a distance of 1light hour in space?
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Graduate Could the speed of light be one of the slowest things in the universe?
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Graduate What is the value of Q in the equation for the Kerr-Newman Metric Tensor?
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Graduate Universe expansion speed vs gravitational waves speed
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Graduate Time Paradox: Calculating Time Dilation for Objects Moving at 90% Speed of Light
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Undergrad Does space (distance) between two bodies contract according to SR?
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Graduate Smaller but Larger? Understand Warped Physics in Higher Dimensions
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Graduate So the freely falling rock will follow a single geodesic on its way to Earth.
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Graduate Transfer of Energy through Forces like gravity
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Undergrad What If the Speed of Light Were Just 1000 km/h?
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Graduate Hamiltonian for a free particle (Special relativity)
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Did Einstein Discover the Theory of Relativity
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Graduate Derivation of relativistic E_kin
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Graduate Can gravity ever be a repulsive force?
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Graduate Is it possible for a wormhole to have zero spacetime curvature?
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Graduate Figuring out Clock Desynchronization
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Graduate Does light experience relativistic effects?
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Graduate Can Time Flow Even Though Space Doesn't?
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Graduate Is Gravity Merely a Byproduct of Electromagnetic Forces?
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Graduate Using tensors and indicial notation
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Graduate Double slit experiment on a moving train
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Graduate Understanding the Speed of Space in Relativity
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Graduate Newtons 2nd Law corrected for Relativity
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Undergrad Question about time and measurement
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Graduate Metric Tensor of the Reissner–Nordström Metric
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Undergrad How Einstein proved equation about speed
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Undergrad Time Measurement: How Is Time Measured?
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Graduate Gravitational Waves: Slowed by Media?
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