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.
Undergrad Is this the only form of the Minkowski metric?
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Undergrad Curved Space-Time: Understanding How Nothing Has Shape
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High School Finding the length of a metre stick from a moving frame of reference
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Undergrad Visualizing Intrinsic Curvature: Is This a Good Practise?
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Undergrad Bernard Schutz Proves Invariance of Interval
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Undergrad What Makes Closed Timelike Curves Physically Possible in Godel Universes?
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High School Is Time a Real and Material Concept?
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High School Deriving Lorentz Transformation: Wave Eq Invariance & General Relativity
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High School Possibility of Black Hole research
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Undergrad Extracting Info from a Black Hole: Robert's Hypothetical Process
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High School Time Dilation & Relative Motion: Who Measures Proper Time?
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Graduate Critique of Non-Interaction Theorem: Meaning & Validity
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Undergrad Is this a closed spacelike curve?
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High School Finding Flaws in General Relativity: A Question of Knowledge
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Undergrad Metric Nomenclature: Lorentz & Minkowski
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Undergrad What is the physical cause behind time dilation?
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Graduate Synchrotron Radiation: Charge Loss of Relativistic Particles in Magnetic Fields
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High School Confusion over relative velocities and reference frames
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Undergrad Does G effectively change in an expanding metric?
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High School Simultaneity & Non-Invariant Variables: Is the Speed of Light Necessary?
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Graduate Does anyone know asymmetric dynamic global solutions to Einstein eqs?
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High School Traveling backwards through time: clarification please
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Undergrad How can the stress tensor be non-zero where there is no matter?
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High School Beginner Resources for Special & General Relativity
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Undergrad Calculate Time & Distance Dilations: 50k Years & 1 Day
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Graduate Black Hole Eating Gravitational Waves - A Look at Physics
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High School Questions about Einstein and the Block Universe
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High School Matter & Spacetime: How Tightly Coupled Are They?
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Undergrad Exact Stationary Spacetimes: Complete List of Discovered Solutions
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Undergrad Realistic Time Dilation for Objects > Subatomic Particles
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Undergrad Is Special Relativity Creating a Paradox in Our Understanding of Time and Space?
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Undergrad Faster Than Light Particle: Could it Create the Universe?
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High School Speed of Light: Michelson-Morley Experiment Revisited
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Undergrad Observers A & B: Rest & Simultaneity
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Undergrad Usefulness of Diagrams for Relativity: 1-5
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Undergrad Spacetime Geodesics at Sea Level & Zoomed Out
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Undergrad Relativistic centrifugal force
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High School Gravitational Effects on Aging
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Undergrad Velocity Addition: Angled Motion Explained
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High School Does Dark Energy Explain the Expansion of Space in Relativity?
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Undergrad Unknown velocity vector of a rail carraige
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Graduate Inquiry on Matrix Tensor Notation & Meaning in Curved Spacetime
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Undergrad Proper vs. coordinate acceleration
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Undergrad Hubble's Law and Star Velocity
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Graduate Derive 4-Velocity Components: Anyone Know How?
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High School Gravity -- a force or a cause of a force?
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Undergrad Deriving tensor transformation laws
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Undergrad How Does Time Dilation Affect Space Travel Duration?
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High School Attribution of Reference Frame: A Dilettante's Question
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Undergrad Derivation of the Lorentz transformations
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Graduate Understanding gravitational waves (GR)
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Graduate Solve for "conv" in ##x^0=t=ct_{conv}##
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Undergrad Explore Clock Synchronisation in a Moving Train Frame
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High School Confirm General Relativity: Eddington's Starlight Experiment
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High School Why is E=MC2 Squared and not Cubed?
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High School Why Does Proper Time in Lorentz Geometry Use t²-x² Instead of t²+x²?
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Undergrad Why 3-momenta + lorentz invariance = large energy?
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High School Black Holes & Warp Bubbles - Event Horizon Considerations
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High School Doppler Effect: Light Blueshifted When Source Moving Towards Observer
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Undergrad Gravitational Mass of a Ball of Photons: Concept Q10.4 in Gen Relativity
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High School Spacetime Curve: Mass Effects & 5th Dimension
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Undergrad Photon Absorption & Electrons: Mass, Energy & Releasing Photons
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Undergrad Is the Alcubierre Warp Drive possible?
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Undergrad Accelerator Particles: Speed of Light & Mass Increase
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High School Relativity: Twin Paradox - Is Age Determinable?
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High School Curve Space-time from Spinning disc?
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Undergrad Deciphering the Units of Continuity Equation in GR
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High School Applicability of GR in Tidal Gravity Problems?
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Undergrad Universe Expansion: Does Speed of Motion Matter?
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Undergrad Is Space-Time Continuous or Quantized?
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Graduate Semicolon notation in component of covariant derivative
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High School Is Time Really Flowing in Relativity?
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Graduate Solve E=mc2 Condundrum: Views on Logic & Reasoning
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Insights The Einstein Field Equation in a Static, Spherically Symmetric Spacetime
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High School Is Mach's Principle the Key to Understanding Rotatory Motion?
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Graduate How Do You Derive the Riemann Component?
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Graduate Hawking Radiation Inside a Black Hole: Theory & Possibilities
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Undergrad Adding Extra Dimension for Calculations in Curved Spaces
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High School Is There Evidence of Physical Matter Existing Beyond the Present Moment?
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Graduate Reimann Tensor Component Form: Charles&Wheeler
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High School Is the case for a Universal Speed Limit experimental or theoretical?
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High School Black Holes, Gravitational Waves & Gravitons Explained
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High School Length contraction of a pair of electrons
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Undergrad Approximating a Black Hole Merger Using a Schwarzschild Model
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Undergrad Binding Mass Distribution in Gravitating Bodies
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High School How GR Predicts Earth's Orbit Around Sun: Geodesic Path & Curvature
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Graduate Gravity on Planets: Does Mass Affect Free Fall?
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Undergrad Inverse results in special relativity
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Undergrad What is the experience of a photon?
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Undergrad Solving the HUGE Issue with Lorentz Transformations and Lightning Strikes
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Undergrad General Lorentz Transformation Explained: Visualize and Grasp It!
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Undergrad Two Observers Moving Opposite Dir Rel to Each Other
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Undergrad The Singularity and the Schwarzschild radius
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Undergrad Why Are Coordinates in General Relativity Independent?
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High School Professional debates about Spacetime
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High School Total % of Photons Redshifted While Moving Away From a Black Hole?
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Undergrad Length contraction viewed with Heaviside equations
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Graduate Is Time Constant Across the Universe or Does it Change Over Billions of Years?
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Undergrad Why Is the Green Observer Always the Bent One in the Twin Paradox?
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Undergrad Do ##\vec E## and ##\vec B## change in a moving frame?
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