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 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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Graduate Can the Oppenheimer-Snyder Collapse Model Account for Variable Mass Inflow?
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Graduate Understanding the Relationship Between Gravity and Space
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Graduate Does Time Dilation Really Happen?
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Graduate Derivation of the Tolman-Oppenheimer-Volkoff equation
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Graduate Proper Length Increase/Decrease: Analyzing Atom Changes
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Graduate Why shear stress components of the Stress Energy tensor not zero?
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Undergrad Realization we are moving in a system
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Graduate In the block universe, what makes this particular 'now' special?
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Graduate Two particles, constant acceleration in their own frame
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Graduate Do Frame Dependent Charges Radiate?
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Graduate What is the Relationship Between Cause and Effect in Spacetime Geometry?
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Graduate Deriving E=mc^2: Special Relativity Explained
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High School What Determines the Straightness of a Line?
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Graduate Twin Paradox Without Acceleration ?
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Graduate General Relativistic Effects on an Electro-Magnet
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Graduate Does change in Lorenz contraction w/ respect to time = Lorenz Velocity
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Graduate Mass, masslessness and the speed of light
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Graduate Interpreting Einstein Tensor Geometrically on a Manifold
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Graduate Quantitative Meaning of Ricci Tensor
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Graduate Inertial Frame of Reference: Why Space Selects a Non-Inertial Frame
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Graduate Derivations for Relativistic Momentum and Mass: Clear Explanations and Formulas
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Graduate How/Why does the Mach principle define what is a 'direction'?
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Graduate Is Gravity the Same for a Candy Wrapper in a Zero Mass Spaceship?
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Graduate How Does Lorentz Invariance Affect Two-Particle Lagrangians in SR?
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Undergrad Is Gravity Really a Pushing Force?
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Graduate Relative death of people traveling at the speed of light
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Graduate Lorentz triangle and length contraction perpendicular to propagation
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Graduate Cylindrically symmetric line element canonical form
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Graduate Was I born before or after my older sister?
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Graduate Light bending in the hot plate model of curvature
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Graduate From killing equation to Lie algebra
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Graduate Lorentz Generators in Light Cone Coordinates
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Graduate Bondi's Radiating Line Element: Solve the Mystery!
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Graduate How Does Gravitational Time Dilation Affect Human Physiology and GPS Technology?
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Graduate Phase space in special relativity
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Graduate Deflection of light and gravity
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Graduate What is the present, how long does it last?
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Graduate Looking backwards when traveling at c
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Graduate Slowing Light: Constant Across Reference Frames?
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Graduate Dirac's statement about conservation
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Undergrad Relative Velocity: Deriving Velocity from Time & Distance
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Graduate Is Our Universe Closed or Open? A Thought Experiment at Near-Light Speeds
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Graduate Is Relative Simultaneity Real?
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Graduate A photon's energy equals its spatial momentum?
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Graduate Understanding Special Relativity on a Geometric and Intuitive Level
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Graduate Solving the Spaceship Paradox: A New Explanation
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Graduate EM Momentum,Hidden Momentum,Centre of Energy Theorem and Lorentz Force
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Graduate Is gravity a fundamental property of mass and space?
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Undergrad Confusion over length contraction
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Undergrad Einstein on the orbit of mercury, how does this fix Newton's theory?
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Undergrad Length contraction/time dilation mutually exclusive?
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Graduate Could Faster-Than-Light Travel Enable Time Reversal?
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Graduate What is the shape of length-contracted space?
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Graduate Does GR predict SR mass changes?
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Graduate How Does Time Dilation Affect Travel at Speeds Beyond Light?
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Graduate Total Energy in Schwarszchild Questions Answered
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Graduate Relativistic velocity addition and signs
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Graduate The 'mechanism' of length contraction
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Graduate Variation with respect to the metric
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Graduate Entanglement and general relativity
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Graduate Expanding the definition of inertial coordiante systems.
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Graduate Derivatives of contravariant and covariant vectors
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Graduate Distance dilation and length contraction
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Graduate Einsteins-Rosen bridge different from schwarzschild black hole metric?
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Undergrad How does bending the time continuum affect time?
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Graduate Sign Convention For v and x In Delta t = gamma(delta t' + v delta x')
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Graduate Detailed working out Lorentz contraction from the Lorentz transform
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Graduate Why does special relativity exclude gravity?
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Graduate Relativity: What's Relative & What's Not?
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Graduate Are length contraction and time dilation conventions?
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Graduate Do origin and onboard rocket observers agree on velocity?
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Graduate Frame-dependency of aging rate in the twin paradox
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Graduate Is Faster-Than-Light Travel Possible in Theory?
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Graduate Relativistic Travel, Perception and Light Constancy
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