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 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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Graduate What Happens When a Rod Is Pushed Beyond Its Signal Propagation Speed?
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Graduate Does my spaceship accelerate forever?
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Graduate Time: The Measurement of the Transfer of Energy
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Graduate Help with showing the existance of the Schwarzschild singularity at r=0.
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Graduate Is Einstein's Explanation of General Relativity Self-Contradicting?
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Graduate Is Relativity Considered a Gauge Theory?
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Graduate Black Hole Existence: Questions Answered
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Graduate Does Clock Speed Vary with Gravitational Potential Inside a Spherical Cavity?
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Graduate How close to light speed can you theoretically get?
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Graduate Parallel transport approximation
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Graduate Is Gravity Really Linked to Mass or Something More Complex?
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Undergrad A noob question about relativity.
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Graduate Derivative of metric and log identity
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Graduate What Two Speed Measurements Do Observers in Relative Motion Always Agree On?
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Graduate Finding Geometry of Near-Extremal D3 Brane | Schwarzschild in 5D
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Graduate How Does Time Travel Through Wormholes Violate Causality?
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Graduate Does that help?Cheers,Chris.Pendulum Clock Time Dilation
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Graduate Elapsed time on accelerating clock
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Graduate Why Was the Big Bang Not a Black Hole?
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Graduate Understanding the Units in Relativistic Momentum Calculations
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Undergrad Information for the uninformed
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Undergrad Noob with a question about lightspeed travel.
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Graduate Adjoint of functional derivative in superspace
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Graduate Non-standard clock synchronization
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Undergrad Is the Relative Speed of Light Constant?
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Undergrad Understanding the Train Experiment: Explaining Observers and Time Perception
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Graduate Is the Aether Truly Attached to Earth?
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