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 We can't determine who is moving?
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Undergrad Has anybody read this book on relativity?
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Undergrad Does Hubble's law implies accelerated expansion?
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Undergrad Conservation of Mass: Is It True?
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Graduate Lorentz Transformation Vector Form Formula
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Undergrad Explaining the Inverse Square Law of Gravity
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Graduate Why Does Traveling at High Speeds Affect Aging Compared to Staying on Earth?
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Graduate A deviation from General Relativity on cosmic scales
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Graduate Time Dilation Paradox (variant distance between two accelerating bodies)
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Graduate Light in the box gravity - question.
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Graduate So gravity and accel can be transformed into eachother, but what about
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Graduate Misner-Thorne-Wheeler, p.92, Box 4.1, typo?
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Graduate What is the significance of causality in relativity?
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Graduate Gravitational time dilation question
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Graduate In simplest terms, what is null dust?
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Graduate Constancy of light speed implied in time and clocks
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Graduate Can Einstein's Theory of Relativity Make Time Travel Possible?
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Graduate Active and passive gravitational mass
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Graduate What's Wrong with Big Clock Moving at 0.1C?
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Graduate Understanding the Twin Paradox: Breaking the Symmetry in Time Dilation
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Graduate Space-Time Fabric: Understanding 3D & Time Together
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Graduate Proving Tensor Theorem: $\frac{\partial}{\partial t} \int {T^{0\alpha} d^3x} =0$
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Graduate How do null coordinates help understand photon's frame of reference?
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Graduate Calculating the Ricci Tensor in 5D Using GRTensor
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Graduate Really moving. What does Bridgman mean.
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Graduate Can someone explain this time dilation problem to me?
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Graduate Black Hole Time Machine (time dilation)
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Graduate Geosynchronous Orbits: Explaining Relativistic Motion
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Graduate Dilation & Contraction-First Post
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Undergrad Has Gravity Probe B proved framed dragging
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Graduate Rotating disks and time dilation
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Graduate Heliocentrism from a relativistic standpoint
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Graduate Retrieving Information from Black Holes (Please repond)
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Graduate Is Distance/space Lorentz contracted?
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Graduate Solving the Stress-Energy Tensor Problem
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Graduate Does coupling to stress-energy imply coupling to Ricci?
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Graduate Is Kinetic Energy Different in Relativity?
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High School What was the 1919 experiment about? Explanation needed.
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Graduate Why do really fast speeds keep you from aging or feeling time ?
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Graduate Projection Operator: Showing Orthogonality for Non-Null q
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Graduate Proof set of one-forms is a vector space
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Graduate Has Gravity Probe B Confirmed Frame Dragging?
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Graduate Electromagnetic blackhole violates 2nd law of thermodynamics?
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Graduate Gravity - a consequence or active force?
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Graduate Effective potential and geodesics in G.R.
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Graduate Cancer developing in different RF's
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Graduate Spacetime manifold: initial condition or result of GR?
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Graduate Curved spacetime and imaginary coordinate
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Graduate Symmetry Argument: Resolving the Twin Paradox Contradiction
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Graduate Parallel transport and geodesics
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Graduate Understanding Speed in an A,B,C Situation
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Graduate The Curvature of Space-Time and the Big Bang Theory
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Graduate Curved spacetime: embedded or not?
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Graduate Spatial curvature - effect on objects
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Graduate Understanding Gravity's Impact on Light: Beginner's Question on GM
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Graduate View from a spaceship at relativistic speeds
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Graduate Less elapsed time: Lorentz Transformation or Spacetime Interval ?
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Graduate Understanding Simultaneity in Relativity and its Effects on Observations
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Graduate What is the true meaning of Einstein's energy formula for a particle?
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Graduate A thought experiment to aid my undertsanding
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Graduate No (Lorentz) Invariant tensor of rank 3?
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Graduate Numerical Relativity: Components of the Lapse Function?
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Graduate Invariant functions of the four-momenta
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I think i figured out gravity, really
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Graduate Why Euclidean Geometry Fails in Real-World Space
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Graduate Curved Space: Is it More Than a Metaphor?
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Graduate A possible uncrossable boarder between bradyons and hypothetical tachyons
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Graduate Evidence that space and time has equal footing?
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Graduate How we compute killing vector for two-sphere
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Graduate Is Time Truly a Dimension in Physics or Something More?
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Graduate How is Constant speed of light referenced
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Graduate Information loss via black Holes
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Graduate Is there any Limit to the kinetic energy
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Graduate Time Dilation: How Much Fuel for 99.999999% of Speed of Light?
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Undergrad Question about relativity example
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Graduate What is the Relative Speed of Light at an Angle?
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Graduate Waves in Vacuum: Can They Travel Faster than c?
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Graduate Vacuum energy destruction of wormhole
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Graduate Definition of energy in general relativity
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Graduate Geometrodynamics: Research Status & Wheeler's Text
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Graduate Schwarzschild solution and velocity of stationary observer
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Graduate Time in a black hole and Weyl curvature
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Graduate Why won't Spaceships at Right Angles Collide in Frame S1?
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Undergrad Time dilation at an unchanging velocity
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Graduate Understanding the Interval Metric
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Graduate Gravitational effects on photons
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Graduate How to Calculate the Limit of Fraction Involving Four Vectors with q --> 0
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Undergrad What is the effect of aging during space travel?
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Graduate Scaling Paradox: Differential Geometry & General Relativity
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Undergrad Time Dilation and Future Interstellar Travel
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Graduate What are the weaknesses of Einstein's GR ?
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Graduate Why does a photon have zero rest mass?
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Graduate Tunneling does not carry information > c?
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Graduate Can someone explain time dilation w.r.t following experiment?
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Graduate Gravitational potential energy in GR
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Graduate Is it technically correct to say matter is made of energy
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Graduate Does Einstein implicitly proves himself and the Lorentz Transformation wrong?
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Undergrad Why Does Time Seem to Slow Down When Checking a Clock Mid-Tick?
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Graduate Can Humans Survive Near a Black Hole's Event Horizon?
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Graduate Creating Repulsive and Attractive Gravity
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