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 ADM Mass for a diagonal metric
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Graduate Is Time Travel Possible with Our Current Understanding of Space and Time?
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Graduate Is Time Travel Possible According to General Relativity?
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Graduate Exploring Relativistic Spinning Wheels: Radius & Simultaneity Paradoxes
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Graduate Conditions for spacetime to have flat spatial slices
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Undergrad Special relativity adandons Maxwell's mechanical interpretation of EM?
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Graduate Can We Really Travel at Light Speed Without Feeling It?
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Graduate The form of the lorentz transformations
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Graduate A few questions about the Einstein field equations?
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Graduate How does movement through solid objects work?
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Graduate Why Two Defs of Four-Momentum?
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Graduate When does Hawking radiation begin?
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Graduate What are the units of vectors and dual vectors?
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Graduate Is relativistic mass not an appropriate concept?
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Undergrad Tapping a message over lightyears in an instant?
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Graduate Understanding the Nature of Gravity: Debunking the Need for Gravitons
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Graduate D'alembertian of lorentz transformation matrix
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Graduate Age-Changes Caused By Instantaneous Velocity-Changes
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Graduate Dirac brackets and gauge in special relativity.
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Graduate What Happens to Communication at Light Speed?
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Graduate I'm currently reading DF Lawden's book Introduction to Tensor
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Graduate Where is gravitational energy stored?
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Graduate Mathematical explanation of maximum speed limit c'
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Graduate Doppler effect and the twin paradox
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Graduate Question about length contraction
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Graduate Is Time Defined Differently for Each Observer?
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Graduate Mass equivalence and instantaneous gravitational field
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Undergrad Can Light Really Be Slowed to 38 mph?
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Undergrad Has General relativity been proven wrong ?
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Graduate Speed of Light Dilemma: Einstein's Formula E=MC^2 Explained
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Graduate Relativistic Mass and Electrons vs. Muons
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Graduate Transitivity condition for Einstein synchronization and the one-way light speed
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  • Poll Poll
BRS: Feedback Poll, Question A
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Graduate Tensor Contraction: Learn by Examples & Repetition
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Graduate Measuring procedure for Fermi Normal coordinates
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Graduate Fermi Normal coordinates for an infalling observer
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Graduate Empirical test of Einstein's famous goof
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Graduate Varitaion on the twin paradox that just doesnt work out for me
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Graduate Simultaneity for entangled particles
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Graduate Speed of light relative to what?
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Graduate Is clock become slower or faster
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Graduate Can Space Appear Curved Due to Forces Similar to Magnetism?
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Graduate Dynamics of the Slowly Accelerated Electron from Einstein's original SR paper
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Graduate A descriptive picture of radar simultaneity
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Graduate Expression of Gravitational Potential in GR
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Graduate Infinite Past and Future: Surprising Consequences of Time Dilation
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High School Major difference of Inertial and non-inertial frame of reference ?
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Graduate Surpassing the speed of light?
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Graduate Will two clocks be synchronized after a period of time dialation?
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Graduate Centrifugal Forces and Black Holes
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Graduate Paradox within the twin paradox
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Graduate Sergei Winitzki's GR Book: Examining Errors in Conformal Transformations
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Graduate Proposal for measurement of Lens Thirring effect
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Graduate What would reality be like without SR?
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Graduate Gravity curvature and graviton
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Graduate Do you know how to derive the General Theory of Relativity?
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Graduate How does light from the past ever reach me?
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Graduate Massless Klein-Gordon equation not conformally invariant?
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Graduate Understanding the Equality in Equation 2.96: Volume Element as n-Form?
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Graduate Can general relativity explain the difference in tides between land and sea?
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Undergrad Time Travel Proposal: Observing Objects from the Past?
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Graduate What is the measurement of an angle in special relativity?
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Graduate Does gravitational mass change during collapse?
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Graduate Chern-Simons Form Explained: General Relativity
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Graduate Is the Boltzmann Equation in GR Truly Coordinate Independent?
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Graduate What Is the Effect of Length Contraction on Time Dilation in Relativity?
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Graduate How Does Light Behave in a Moving Light Clock?
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Graduate Spacetime and limit c->infinity
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Graduate Understanding Einstein Field Equations Through Tensor Calculus
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Graduate SR length contraction question
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Graduate General Relativity Effective Potentials
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Graduate Conceptualizing travel toward a light source
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Graduate Reference that explains general relativity
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Graduate Einstein needs to show his work
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Graduate Can proper time be calculated for varying velocity along a worldline?
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Graduate Acceleration of a circulatory particle
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Graduate Coordinate singularities and coordinate transformations
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Graduate How Do You Model an Apple Falling into a Black Hole Using Integral Calculus?
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Graduate Third derivative of quadrupole moment as source of radiation
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Graduate Proof for E=mc^2: Questions Answered
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Graduate Event horizon: light delay and grav. time dilation
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Graduate Question from Weinberg's cosmology text
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Graduate The Theory of the Transverse Doppler Effect
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Graduate Lorentz factor for slow speeds
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Possible Proof of Time Travel: Is it Physically Possible?
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Graduate Relativity and the arrow of time
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Undergrad Comparing Lorentz and Einstein: Questions Answered
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Graduate Why Do Some Theories Suggest Speeds Faster Than Light?
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Graduate Shear stress in Energy-momentum Stress Tensor
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Undergrad Gravity /electromagnetism /measuring
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Graduate The Pioneer Anomaly and Vacuum Energy
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Graduate What causes the warping of space-time?
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High School Why faster than light is impossible?
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Graduate Lorentz invariance and General invariance
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Graduate Orbit of Moons & Shapes of Planets due to Warped spacetime
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Graduate What is the different between Minkowski Space an Semi Riemann Space?
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Graduate Dimensions and information content
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Undergrad Can wormholes make you travel faster then c
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Undergrad Why Can't Anything Exceed the Speed of Light?
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Graduate Going crazy: can someone spot the error in this simple derivation?
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