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 Feasible way to go the speed of light?
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Graduate Could superman fit his hand around a Basketball?
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Graduate Special relativity time dilation question
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Graduate 13 parameters for agreement with observations
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Graduate Time Travel at Light Speed: How Can Earth Be in Future?
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Graduate Question about an Alcubierre warp drive's negative energy requirement
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Graduate What is the nature of gravity?
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Graduate Rotation and circular motion under different simultaneity conventions
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Graduate Perception and calculating when events happened
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High School Plane Flying East-West: Time Difference Explained
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Graduate Is the speed of light constant with time?
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Undergrad Why does gravity not create resistance?
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Graduate Length contraction of rotating wheel
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Graduate A question about measuring time via the speed of light
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Graduate Understand Degeneracy of Metric at Schwarzschild Singularity
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Graduate Is "length contraction" an illusion?
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Graduate Zeroth component of Spin 4-Vector
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Graduate Question about covariant derivatives
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Graduate Information Faster Than Light - Thought Experiment
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Graduate Can information truly be teleported using quantum entanglement?
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Graduate The Relativistic Force-Norm and the Proof of E=mc2
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Graduate Velocity of light and it's frame of reference.
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Graduate Verification of c isotropy vs c in Einstein synchronization
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Graduate Drawing lines through spacetime warped by the mass of the earth
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Graduate How is it possible for binary stars to not show changes in aberration angles?
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Graduate Laying a rope into a black hole very fast
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Graduate Kinematic time dilation in black holes
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Graduate Can Geodesic Deviation in Spacetime Incorporate Non-Causal Relationships?
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Undergrad How to tell the difference between acceleration and gravity
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Undergrad Is it possible to tell whether ship is moving or not?
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Graduate I'm sorry, I'm not sure what your question is. Could you please clarify?
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Graduate Resolving Symmetric Movement Paradox w/ Respect to Stationary Observer
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Undergrad Biking at near the speed of light
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Graduate Is time present in a black hole?
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Graduate Why it is necessary to unite Gravity and other forces
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Graduate Special Relativity and Biological Clocks.
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Graduate Dark Energy: Observer Dependent or Absolute Rest Frame?
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Graduate Time is an illusion? Einsteinian Ideas reflected.
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Graduate Affine parametrization for null geodesic?
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Graduate Time Slowing Rate & Gravity: A Derivation
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Graduate If gravity is geometry then why talk about
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Undergrad Find Refractive Index of Liquid for Observer with Velocity
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Graduate Expansion tensor on rotating disk
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Graduate Is Gravity Instant? A Thought-Provoking Question
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Undergrad Twins paradox and time dilatation
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Graduate Did Einstein have a Physical Interpretation of Frames?
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Graduate If the speed of light depended on the source's velocity
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Graduate Can Alice's Spaceship Experience Enhanced Views and Heat Near Light Speed?
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Graduate Interesting Thoughts on Objects & Speed of Light
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Graduate Comoving fluids - radiation and matter
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Graduate Radial motion in the Schwarzshild spacetime
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Graduate Redshift and blueshift in relativistic doppler effect
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Undergrad Why Do Objects Float in Space Station (SS)?
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Graduate Speed of light that hits our eyes
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Graduate Measuring Relativistic Velocities on Earth: A Question
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Graduate Please explain what is wrong with my relativistic momentum problem
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Graduate Relativistic Action Math Help: The Classical Theory of Fields
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Graduate Can We Define Angles in Flat Spacetime Using Geodesics?
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Graduate Does Light Obey the Same Rules as Matter in Motion?
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Graduate Two trains moving in opposite directions around the earth
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Graduate Mass Increase at Relativistic Speeds: A Scientific Inquiry
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Graduate Synge: optical observations in GR
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Graduate Is the Sagnac effect a reliable measure of rotation in Kerr space-time?
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Graduate Solving GR Questions (Novice+): Some Qs on GR - Can You Help?
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Graduate In the context of travel near c how is mass defined?
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Graduate Are Bianchi IX Models Truly Homogeneous Yet Not Isotropic?
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Graduate What are the implications of spatial homogeneity in cosmological models?
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Graduate Relativity on Earth: Understanding Simultaneity & Time Dilation
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Graduate Is Mass Dependent on Temperature According to Mass-Energy Equivalence?
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Graduate How Does Clock Synchronization Work in Different Dimensions?
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Graduate Time Dilation on Spinning Atoms?
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Graduate Changing curvature of a manifold
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Graduate Attaining Threshold Velocity V for Accelerating Object Mass M
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Graduate Understanding Discrete Reversal of Time Direction
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Graduate Energy-stress tenor = 0 => flat spacetime?
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Graduate Imagining spacetime curvature more accurately
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Graduate Non-Spooky Action at a Distance
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Graduate Is this analogy of travel near "c" correct?
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Graduate Length Contraction Paradox Scenario
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Undergrad Higgs field at near light speed
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Graduate Riemann Manifold: Choosing a Basis & Lie Algebra
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Graduate Why does the horizon area of a black hole never decrease?
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Graduate Hyperbolic Triangles: Deriving Relationships Algebraically or Geometrically
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Graduate Identifying System Equality Across Observers
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Graduate Proving Timelike Killing Vectors for g_{ab},0 = 0
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Graduate Mass and inertia at high speeds
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Undergrad Transition from inertial to circular motion
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Graduate Homogeneous spacetime - Lie groups
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Graduate Can an Object Falling in Infinite Gravity Break the Speed of Light?
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Graduate Black hole collapse - ray tracing
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Graduate Transformation of acceleration between two reference frames
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Graduate Ricci Tensor Proportional to Divergence of Christoffel Symbol?
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Graduate Unraveling the Mystery of the Massless Photon
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Graduate Is it possible to create a universal calendar/clock?
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Undergrad How would you define an inertial frame of reference?
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Graduate Two entangled particles One on Earth, the other on a space ship
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Graduate General relativity and accelerated frames
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Graduate Volume element for null hypersurface
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Graduate Is gravity a by-product instead of a force of nature itself?
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Graduate "Special" and "General" relativity- Who invented those terms?
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