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 Einstein's Theory of Special relativity
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Graduate Age of Universe: Is There an Alternate Perception?
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Graduate Is the Two Body Problem in GR Solvable Using Geodesics?
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Graduate Finding Lorentz Factor of a Point Particle in Curved Spacetime
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Graduate Wikipedia: using the four-velocity to understand time dilation (?)
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Graduate Mathematical Operations of General Relativity
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Graduate Normalization of a delta function in curved spacetime
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Graduate Modified Twin Paradox. (Experts required).
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What is the true nature of time?
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Undergrad Time Dilation Gamma Factor: New to STR, Confused?
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Graduate Room in Spaceship: Apparent Paradox?
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Undergrad Light emitting from an object moving near the speed of light.
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Graduate Conservation Laws vs a Spinning 'Disk Brake'
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Graduate Are acceleration and gravity completely equivalent?
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Graduate Large diffeomorphisms in general relativity
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Graduate Does the expanding universe contradict relativity?
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Graduate What is the surprising result for c_hat according to an accelerating observer?
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Graduate Will GR ever explain the flyby anomaly?
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Graduate Can 5D Wormholes Make Instant Global Shipping Possible?
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Graduate How Do Satellites Orbit Lagrange Points Without Mass?
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Graduate Explaining Relativity: Motion in a Gravity Field
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Graduate Determinism, Stokes' Theorem and Relativity
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Graduate Adding Velocities: Formulas & Calculations
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Graduate Inside the Event Horizon: The Relativistic Effects on Mass and Light
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Graduate How Does Relativity Affect Our Perception of Time and Space?
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Graduate Does an electron moving along a geodesic radiate?
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Graduate How Does the EFE Describe Geodesic Motion in Curved Spacetime?
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Graduate Principle of Equivalence Re-examined
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Graduate What is the angular-momentum 4-vector?
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Graduate Where does relativity allow for non-determinism and free will?
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Graduate Confusion with proper time from different frame of references
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Graduate Mass and Speed: The Relationship in Relativity
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Graduate Is Proper Time Relative in Special Relativity?
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Graduate Am I interpreting Einstein correctly?
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Graduate How is the Lorentz transformation derived and what does vx/c² signify?
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Graduate Einstein's letter to Lincoln Barnett
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High School Signature scheme by pythagoras theorem
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Graduate Are the definitions of vectors in Liner Algebra and physics contradictory?
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Graduate Can an Alternating Metric Define a New Spacetime Topology?
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Graduate Is Velocity Warping Space? A Look into Einstein's Special Relativity Theory
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Graduate How can photon have frequency if its time is zero?
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Graduate Nature of the time dimension in 4D space-time
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Graduate HelloMay I ask a few questions, I am trying to understand how the
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Graduate Time dilation flashlight problem
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Graduate Calc Speed: Warping Space with Mass & Infinity
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Graduate Equation for acceleration in MTW
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Graduate Gravity Probe B press conf. 4 May (any surprises? comment?)
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Graduate Riemannian Geometry is free of Torsion. Why use it for General Relativity?
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Undergrad Can Spaceships Travel Faster Than the Speed of Light?
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Graduate How Does the Standard Model Prevent Faster-Than-Light Travel?
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Graduate Would the effect of photon/quantum wrapping space time be negligible?
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Graduate How Fast Does My Friend Appear When We Travel in Opposite Directions at 0.7c?
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Graduate Can someone state clearly a sufficient condition for a 4-tuple of
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High School Question About Time: An Exploration
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Graduate What are the axioms of General Relativity?
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Undergrad That famous equation - a better understanding
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Graduate Deriving Graviton Propagator from Linearized Lagrangian
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Graduate Diagonalization of metric matrix in general relativity
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Undergrad Acceleration vs De-acceleration
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Graduate Why does time dilation create a velocity barrier but not a density barrier?
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Undergrad Lenght contraction of a charged wire and time dilation?
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Graduate Is special relativity consistent with thermodynamics?
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Graduate Length Contraction and Time Dilation
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Graduate Weak equivalence principle and GR
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Graduate Do the Principles of Special Relativity Require Synchronized Clocks in K and k?
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Graduate Wave vector in curved space-time.
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Graduate Do all gravity waves have the same frequency?
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Undergrad How Does Earth's Gravity Accumulate?
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Graduate Spacetime Interval: Is it Invariant Under Rotations?
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Graduate Is Time Actually Speeding Up in the Expanding Universe?
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Graduate Stress tensor : tension VS Pressure
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Graduate Trace-reverse field in linearized GR
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Graduate Bell's spaceship clarification
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Graduate Is the Lorentz metric compatible with the topology of flat spacetime?
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Graduate Self-interactions in linearized gravity
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Graduate What is the Generalized Approach to Lorentzian Relativity?
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Graduate Why does the bend in space time not affect the gyroscope?
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Graduate A critique of Mike Fontenot's CADO scheme
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Graduate C^2 in Lorentz transformations and special relativity.
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Graduate Basing everything on speed of light
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Graduate Newton's bucket and Galilean relativity
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Graduate Quick question to clear up some confusion on Riemann tensor and contraction
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Graduate Can someone help me understand this paradox please
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Graduate Archimedes principle and relativity
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Undergrad How do Lorentz transformations show the relationship between time and space?
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Graduate Does Anyone Use Newtonian Physics w/ Arbitrary Time Coordinates?
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Graduate Does frequency of light increase if
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Graduate Acceleration of Light ensity of Space
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Graduate Ambiguity in time dilation due to relative velocity
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Graduate How to denote tetrad in Abstract Index Notation ?
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Graduate Is it possible for relative velocity to exceed the speed of light?
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Graduate Local Coordinates for Non-Uniformly Accelerated Observer
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Undergrad The Twin Paradox: Mike & Angela's Frame of Reference
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Graduate Can a beam entering a black hole be used to communicate with the outside world?
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Graduate Do photons experience instant lifetimes?
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Graduate When do we use tensor densities rather than tensors?
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Graduate Is Spacetime Curvature Real? - Take 2
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Undergrad Relativity Books: Advanced Reads for Engineering Student
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Undergrad What is the significance of taking the derivative of y=sin^-1(x)?
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Undergrad Twin Paradox: Explaining Symmetry & Age Difference
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