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 A question on special relativity
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Graduate Is the Speed of Light Really Slowing Down?
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Undergrad Bending of Light: Other Observations Beyond Eddington
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Graduate Ehrenfest Paradox: Explained in Simple Terms
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Graduate Does GR say anything about solid angle deficit?
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Graduate Momentum in the time direction
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Undergrad Is Light's Gravity Influenced by Other Light?
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Graduate How Does Relative Motion Affect Time Measurement in Different Reference Frames?
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Graduate Is there a peak in the center of a GR space-time well?
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Undergrad Does E=mc² fully account for an object's total energy including kinetic energy?
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Graduate Energy, Heat & Speed: A Physics Q&A
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Would Hitting a Micro Black Hole with Your Hand Create a Hole?
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Undergrad Are Photons Massless But Still Have Momentum?
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Graduate Questioning Zero Reference and the Expansion of the Universe
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Graduate Light Speed Travel and Causality
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Graduate Size of Black Hole: Swallow 1.5m x 3.585m x 20cm?
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Graduate What Defines the Coefficient of Restitution in Relativistic Collisions?
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Graduate Not to defend Phrak, but i have a related question
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Graduate Length contraction v. time dilation
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Graduate How Do New Space-Time Coordinate Transformations Impact Clock Synchronization?
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Graduate More Spacecraft Velocity Anomalies
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Graduate A question regarding length contraction
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Graduate Unifying Gravity and Time: Insights from General Relativity & Quantum Mechanics
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Graduate ModifiedGravity.htmlWhat are the limitations of General Relativity?
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Graduate Crossing Event Horizon of Black Hole: What Happens?
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Graduate How Does a Clock Measure Time?
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Graduate Is Time Dilation a Result of Matter's Intrinsic Motion?
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Graduate Can You Escape the Gravitational Pull of a Black Hole?
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Graduate Meaning of diffeomorphism invariance?
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Graduate What is Relativistic Heat Force? Any Research Papers on This Topic?
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High School Does a dimension have dimensions?
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Undergrad Photon Mass: h/(lamda*c) Explained
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Graduate Understanding Time and Space as One entity.
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Graduate Coordinate acceleration without a Force
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Graduate Deriving gravitational redshift using the energy change approach
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Graduate Two-spaceship paradox This solution incorrect
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Graduate Maximum speed of anything, temperature
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Graduate So what has happened to the GPE (Gravitational Potential Energy)?
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Graduate Problem with thought experiment
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Undergrad Is Magnetism Related to Einstein's Relativity?
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Graduate Ricci tensor equals a constant times the metric
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Graduate What's wrong with Michelson's explanation of ether dragging?
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Graduate Gravity: real force or artefact of acceleration?
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High School Does Gravity Move Off? Your Answers Needed
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Graduate Does Pi Relate to Space-Time's Curvature?
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Graduate Time Dilation: Understanding the Effects of Special Relativity
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Graduate Deriving ds^2 = ds'^2 in Special Relativity
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Graduate Relativity: Absolute Acceleration & the Twin Paradox
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Graduate General Coordinate transfos vs Lorentz transfos in GR
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Graduate Is light travel time for event time calculation usually implicit?
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Undergrad How Do Black Holes Exert Gravity If They Absorb Light?
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Graduate Revisiting the lesson of the Relativity of Simultaneity
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Graduate What is the answer to the Twins Paradox confusion in relativity?
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Undergrad Deflection angle of a ray grazing the sun
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Graduate Locality, Time, Speed, Distance, and one confused person.
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Graduate What Units Should Be Used for the Left Half of the GR Equation?
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Graduate Understanding the Twin Paradox and Time Dilation in Relativity Theory
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Graduate Does a Photon Have a Lifespan?
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Undergrad Why Is Time Considered the 4th Dimension in Einstein's Theory?
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Graduate Can a Single Particle Move Without a Reference Point?
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Graduate What Does the Curvature of Time Look Like in Our Perception?
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Graduate Derivative of the metric tensor
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Graduate Einstein's Derivation, why is light velocity c-v and c+v?
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Graduate Maxwell vs Newton: Contradictions in Electrodynamics and Mechanics
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Graduate Doppler Effect and absolute simultaneity
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Graduate Energy-momentum for a point particle and 4-vectors
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Graduate Two questions about the ADM formalism
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Graduate Solve Absolute Simultaneity with Einstein's Procedure
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Graduate Where Can I Find a Review of Relativistic Thermodynamics?
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Graduate Can Someone Help Me Better Understand the Relativistic Origin of Magnetism?
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Graduate FTL travel: Do you think we can do it?
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Graduate Confusion about signal latency vs true relativity
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Graduate Space-Time Curve in Black Holes: What Does It Mean?
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Graduate Energy-Momentum Tensor: Exploring Einstein-Hilbert Action
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Graduate Show Lorentz invariance for Euler-Lagrange's equations- how?
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Graduate Why do people insist on the graviton
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Undergrad Hypothesis about speed of light
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Graduate Unraveling the Concept of Relativity: Understanding Light and Time
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Undergrad Relativity Questions: Answers for the Beginner
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Graduate Gravity, cause or effect of time dilation?
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Undergrad Why Does the Speed of Light Remain Constant When Moving in an Airplane?
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Graduate Is there a relation between GCT and Lorentz invariance?
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Graduate How infinite does time get by gamma
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Graduate Understanding Notation in Hawking and Ellis: V_{(c;d)} and V_{[c;d]}
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Graduate A question concerning the lorentz transformation derivation
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Graduate GR explanation of Newtonian Phenomena
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Graduate How can the Riemann tensor help me calculate the bend in space-time?
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Graduate The classical aether vs. the modern vacuum
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Graduate Apparent position and light travel time
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Graduate Question on Special Relativity.
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Interesting new take on gravitation?
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Graduate Rotating Spacetime - a question
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Graduate Why does light have invarient speed?
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Graduate GR/SR Space-Time: Explaining Gravitation and its Geodesics
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Graduate Plotting space-time curvatures as curved 2D-surfaces
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Graduate An illustration of relativity with rulers and clocks
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Graduate Massive objects moving too fast
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Graduate Understanding ct: Time vs Distance on Spacetime Diagrams
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Undergrad Gravity and the earth's geometry
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Graduate Finding a Textbook for General Relativity and String Theory
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