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 we escape a black hole's event horizon using another?
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Undergrad Is the fabric of space time 2d or 3d
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Graduate Two beams of light traveling in opposite directions=2c
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Graduate Futurisitic Understanding of Space Time: Escaping a Black Hole?
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Graduate Two objects moving towards each other.
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Graduate Does gravity turn time into space?
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Graduate Energy and proper time (not relativity)
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Graduate Simultaneity, Rotation & Gravity: Agree?
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Graduate Orthogonal space-like vectors.
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Graduate How Does Velocity Affect Time, Length, and Mass in Special Relativity?
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Graduate Can we calculate kinetic energy by multiplying 1/2mv^2 by 1.15 at C/2 speed?
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Graduate Rotating frames desynchronization
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Graduate Can Rotating Clocks on a Rim Be Synchronized Using Simultaneity Principles?
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Graduate Time Dilation Between Fixed Point & Geostationary Orbit: SR & Circular Motion
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Graduate Relativity and Black Hole Question
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Graduate EFE Metric: Find a Link to the Full Expansion
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Graduate Why Does Light Experience a Large Shapiro Delay Near Black Holes?
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Graduate Help Understanding Black Hole Theories
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Graduate Is the Traveling Signal Paradox Real or Just a Misunderstanding of Relativity?
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Graduate History of building of general relativity
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Graduate Parity conservation and the Field-Strength Tensor‏
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Graduate Could the Observer's Absolute Rest Explain the Constancy of Light Speed?
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Graduate Is Virtual Length Contraction Influenced by Changes in Refractive Index?
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Graduate Real examples of the space-time interval
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Graduate Conservation of 3-Momentum: Noether’s Theorem
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Graduate Minkowski normal v. Euclidean normal
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Graduate Gamma plus or minus gamma-beta, two different outcomes?
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Graduate Initial Data for General Relativity: EFE
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Undergrad How do Gravity and Acceleration affect Clocks?
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Graduate Questioning Light Speed: An Advanced Physics Mystery
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Graduate Bianchi identity with F^ab F^cd
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Graduate Huggins Displacement Theory and Retrocausality
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Graduate Your preferred way of explaining this point about the twin paradox?
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Graduate Can Particles Travel Backwards in Time if They Exceed the Speed of Light?
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Graduate How does magnetic moment transform due to relativity?
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Graduate Derivation of formula for time dilation
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Graduate XY Plane with Z as Time: Big Bang?
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Graduate Transition from Flat Minkowski to GR
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Graduate SR and synchronization of clocks
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Graduate Understanding Stress Tensor in MTW Ex. 5.4
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Graduate Velocity Addition: Solving Minkowski Space with Metric Techniques
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Graduate Proper Time in Higher-Dim. Gravity: GR to HD
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Graduate Can Gravity Fields really cause Time-Dilation-Effects inside of them?
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Graduate Is acceleration the same as gravitational time dilation?
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Graduate Transformations in curved spacetime?
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Graduate Energy for moving mass up a centrifugal gravity barrier
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Graduate Black Hole Information Paradox and Alcubierre Warp Drives
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Graduate Perception and inertial frames
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Graduate Gravity as a force and as a curvature
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Graduate Contravariant and covariant indices
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Graduate Can the Warp Drive Go Faster Than Light?
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Graduate Is energy and mass extraction possible within the Kerr Black Hole Ergosphere?
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Graduate Trying to understand time dilation better
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Graduate Understanding Ultrarelativistic Speeds and Their Boundaries
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Graduate Non-Inertial FRs in GR: Summary & Sources
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Graduate Stress-energy tensor explicitly in terms of the metric tensor
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Graduate Track of the light in a moving light clock.
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Graduate Continuity equation (charge vs matter) in SR
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Graduate Free falling into a black hole that evaporates by Hawking Radiation
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Graduate What Are the Effects of Light Speed in Different Reference Frames?
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Graduate The definition of synchronized clocks
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Graduate The rotating disk of Albert Einstein
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Graduate Photons Trapped on Expanding Event Horizons
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Graduate A simple problem of conservation of momentum
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Graduate 2013 edits to the sci.physics.faq Rotating Rigid Disk in Relativity
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Graduate Confusion about time dilation and length contraction
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Graduate Can You Travel Faster Than Light While Running on a Train?
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Undergrad Is Gravity the only force that affects time?
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High School Can Humans Really Time Travel?
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Undergrad Why Does Light Fall Into a Black Hole?
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Graduate Is Spacetime a Field in General Relativity?
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Undergrad Does gravity affect the speed of light on Jupiter ?
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Graduate Solving Newtonian Tensor from A. Zee's EGR Book
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Graduate Is there an absolute reality in the universe, independent of observation?
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Graduate Calculating Absolute Velocity at 50% the Speed of Light
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Graduate Can different time-slices of an object interact?
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Graduate Klein bottle in 4d- Questions/ Discussion
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Graduate Is Space-Time Symmetrical or Asymmetrical?
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Graduate The invariant momentum-space volume element?
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Graduate Minkowski Metric and Lorentz Metric
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Graduate Fuel conservation near a Schwarzschild black hole
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Graduate How Does a Photon Experience Time During Its Journey Across the Universe?
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Graduate Spacetime symmetries vs. diffeomorphism invariance
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Graduate A stationary photon for an observer in circular motion?
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Graduate Accelerated Rest Frame: Time Flow Explained
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Graduate Is the metric tensor constant in polar coordinates?
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Graduate Redshifting Through Hole in Earth
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Graduate Current through a wire and special relativity
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Graduate Error in Carroll's Spacetime Geometry?
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Undergrad Uncovering the Mystery of Time Dilation in Mechanical Watches
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Graduate Is the Twin Paradox a Misinterpretation of Relativity?
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Graduate Generating energy with wormholes?
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Graduate If light approaches a black hole will it accelerate?
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Graduate Time Dilation: An Overview of an Experiment
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Graduate Understanding the lightspeed limit
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Graduate Observing objects moving close to light speed
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Graduate Are there non-perfect fluid stress-energy tensors in GR?
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Graduate Why do we always need to define simultaneity in relativity. The
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Graduate Geodesic Equation & Orbital Surface Area Around the Sun
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Graduate What is the Relationship Between Moment of Inertia and Relativity?
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