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 SR Inertial Frame Scenario Confusion
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Graduate Can We Observe Our Own Past Through Reflected Light?
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Graduate What are some open questions in general relativity for microscopic objects?
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Graduate Black Hole Entropy: Is S=A/4 robust ?
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Graduate Is Einstein's Gravity Theory Historically Accurate?
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Graduate Does Curved Spacetime Affect Atoms?
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Graduate Does Defining a Four-Dimensional Velocity Vector Make Sense for Time Dilation?
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Undergrad What are some everyday applications of relativity in modern technology?
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Graduate Gravitational Time Dilation and the Galaxy Rotation Curve
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Graduate Space-Time gravitational field problem
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Graduate How does Curvature Relate to 'Gravitation'?
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Graduate What is the proper time interval in special relativity?
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Graduate Is there such a thing as at rest ?
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Undergrad Why one cannot push light but just in the normal direction to the ray?
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Graduate Special relativity and the Photon
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Graduate Mass-inflation in rotating/charged black holes
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Undergrad Would You Experience Weightlessness in a Free-Falling Elevator?
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Graduate Volume of Dimension reduced due to gravitation
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Graduate Why is Light Always Linked to Time in Relativity?
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Graduate Length contraction and magnetic field
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Graduate Homogeneity of Space and Time vs Gravity
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Undergrad Gravity: Is There an Equation?
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Graduate Is There a Connection Between Inertia and Time Dilation?
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High School E=mc^2 and is it possible E/c^2=m
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Graduate Gravitational force vs space time fabric
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Graduate A Challenge to Special Relativity?
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Graduate Particle disappearing from view if it exceeds c
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Graduate Why should A change its view on the length of B ship during relative motion?
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Graduate Is there a formula for the shrinking of the universe due to object curvature?
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Graduate What's the curvature of spacetime describe?
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Graduate Spacetime we are able to distinguish between different inertial frames
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Graduate Surely fault about relativistic momentum
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Graduate Constructing Lorentz Basis: Restrictions & Possibilities
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Graduate Clarifying the Jerk Four Vector: Definition & Form
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Graduate Gravitational Lensing: Extent & Effects on Universe
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Graduate Is Mass a Relative Concept in Physics?
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Graduate What Happens to a Photon's 4 Momentum After a Lorentz Boost?
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Graduate Thim experiment: Doppler expected or not?
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Graduate Understanding Special Relativity
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Graduate Time Dilation & Gravity: Can You Go Back in Time?
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Graduate Extrapolating Schwarzschild exterior coordinate
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Graduate Kretschmann Scalar for Rotating Black Holes: Curvature Invariant
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Graduate Varying timing of eclipses of Algol and constant speed of light?
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Graduate Can You Be Both Dead and Alive When Traveling at Light Speed?
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Graduate Is Electromagnetism Relative and Does it Create a Paradox in Moving Frames?
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Undergrad Light Speed Relativity: A Puzzling Question
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Graduate Units of length and time in MeV?
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Undergrad Spacetime and how wormholes relate to it
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Graduate EPR experiments imply STR not correct?
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Graduate Embedding curved spacetime in higher-d flat spacetime
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Graduate Black Hole and the event horizon
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Graduate Matter and Antimatter - Gravity
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Undergrad Gravitational Lensing Deflection angle
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Graduate Time dilation in de Sitter Special Relativity
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Graduate Collapse to a ring singularity
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Graduate Stupid question about invariance of maxwell equations
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Graduate Finding the ring-singularity of a rotating black hole
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About Deja Vu: Mass and travelling into an alternate universe.
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Graduate Kinetic and dynamic twin effect
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Graduate Lorentz-Fitzgerald Contraction or Time Dilation?
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Graduate Is There Evidence for Electric Field Contraction in Space?
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Graduate Operational definition of four velocity
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Graduate SR is that nothing can move faster than light
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Graduate How does curved spacetime result in an effective gravitational force?
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Graduate Is Gravitational Acceleration a Violation of Space Curvature Theory?
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Graduate Finding Ratio Between Reduced Circumference & Radius of a Black Hole
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Graduate Cosmic microwave background and a reference frame
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Graduate Killing Vector on S^2: Solving the Killing Equation
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Graduate A few questions from introduction to sr by rindler.
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Undergrad How Do GR and SR Influence Modern Technologies Beyond Nuclear Energy?
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Graduate Calculating Stress Energy Tensor for Rotating Bodies
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Graduate How does the theory of relativity affect our understanding of temperature?
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Undergrad What does pressure mean in regards to GR?
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Graduate Can tensors always commute with each other or are there exceptions?
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Graduate Is 2nd postulate of SR necessary?
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Graduate Question on general principle of relativity
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Undergrad Can Infinitesimal Time Change Our Understanding of Physics?
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Graduate Quantum Mech incompatible with Relativity
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Graduate What Does Repulsive Gravity Do to Space-Time?
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Graduate Understanding Weinberg's Symmetries and Rays
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Graduate About a Lorentz matrix and its inverse
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Graduate Superextreme rotating black hole
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Graduate What Distinguishes Timelike from Non-Spacelike Curves in Spacetime?
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Graduate Effects of non-linearity of GR
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Graduate Poisson brackets for Hamiltonian descriptions
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Graduate Mathamatical Description of the Cosmological Principle
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Undergrad The Limitations of Time Travel: Ignoring Spatial Movement
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Graduate Einstein's STR is valid for systems that are not accelerating.
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Graduate Addition of velocities for General Relativity
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Graduate Four vector component. how to recognize it?
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Undergrad Flash Light at the Speed of Light Question
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Graduate Is GR a 2nd order approximation in g?
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Graduate Is Proper Time the Only Measure of Motion in Spacetime?
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Graduate Can Relativity Explain a 5000 Year Old Universe with Billions of Light Years?
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Graduate Relativity of Simultaneity: possible scenario?
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Graduate Instantaneous EPR: Measuring Reception Times
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Undergrad Understanding Time Dilation: Whose Clock Ticks Faster in Special Relativity?
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Graduate Explaining Weak & Null Singularities in Black Holes
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Graduate Plot of the Fabric of Spacetime - Schwarzschild
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Graduate Time Travel and Conservation Laws
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