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 Dark energy questioning Relativity?
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Undergrad Metric Tensor: Symmetry & Other Constraints
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High School Topology on flat space when a manifold is locally homeomorphic to it
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Undergrad Effective Potential & Curved Spacetime: Angular Momentum Effects
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High School Is There a Connection Between Planck Length and Planck Time in Relativity?
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Graduate How to Read Geodesic Equation: Vector, 3-D & EFE Solutions
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High School Can an Object Exceed the Speed of Light?
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High School Symmetry in Higher Dimensions: Sean Carroll's Video & Physics
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High School Does time dilation work in 1d space?
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Undergrad Questions about spaghettification and gas cloud G2
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High School How Does Gravity Affect Spring Stretching in Einstein's Theory?
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Graduate Gravitational Energy: Field x Moment
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Undergrad What is the nature of space and time in deep empty regions of the cosmos?
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High School Time Dilation b/w Galaxies: Dark Matter Impact?
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Undergrad Computing Riemann Tensor: 18 Predicted Non-Trivial Terms
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Graduate Double Dual of Vector Space: Is V** Always Same as V?
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High School Difference Between Redshifts of Massive Galaxies & Accelerating Galaxies
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Undergrad Length Contraction: Traveling in a Space Ship
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High School Components of Tangent Space Vector on Parametrized Curve
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High School Time traveling in the future and in the past
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High School On the level of detail required for GR math
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Graduate GR Unphysical Aspects: Time Protection Hypothesis & Riemannian Curvature
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High School Gravitational Mass of C/2 Objects: Jim Adrian's Inquiry
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High School Explore Time Perception & Relativity - Get Your Answers Here
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Undergrad Vanishing of Contraction with Metric Tensor
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High School How Do Lorentz Transformations Explain Time Dilation in Special Relativity?
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Graduate Unlearning Block Universe: BU vs Presentism Q&A
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Undergrad Static Point in de Sitter-Schwarzschild Spacetime
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Undergrad Metric defined with a non-coordinate basis
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High School Can time pass slower on another planet, causing the Twin Paradox?
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High School Backwards Time Travel: Can We Influence Our Casual Past?
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Undergrad Gravitational Wave Creation: Is a Stationary Wave Possible?
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High School Calculating Relativity of Simultaneity
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Undergrad The Non Constant Gravitational Constant (G)?
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Graduate Kerr Black Hole Angular Momentum Limit
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High School Time Dilation & Relativity: Explained for Beginners
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Undergrad Proper Velocity: Intro to Elementary Particles
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Undergrad Lorentz Invariance Violation for Manifolds
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Undergrad What Happens to Laser Light Inside a Spaceship Traveling at Light Speed?
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Undergrad Differential form of the velocity equation in a non-standard configuration
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High School How does an isolated observer know if they're accelerating?
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High School Gravitational Lensing & MOND: Does DM Explain Observations?
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High School Length contraction and Time dilation calculation
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Graduate Can you numerically calculate the stress-energy tensor from the metric?
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High School Matter & Space-Time: A Discussion
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Undergrad Four Velocity Vector: why divide by time according to the particle?
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Undergrad Zero-Energy Universe: Reliable Source?
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Undergrad Treatment of Relativity in "Las Leyes de la Termodinámica" Movie
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High School What Would You Experience Inside a Black Hole and How Does Time Behave?
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High School Does Gravity Act on Everything? Fundamental to GR?
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Undergrad Falling EM system contradicts the equivalence principle?
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Undergrad Understanding Microcausality in QFT
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Undergrad Is x Equal to x' and t Equal to t' in Lorentz Transformations?
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Undergrad Rotation and Boost of Tensor Components: Meaning?
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Undergrad The proper Schwarzschild radial distance between two spherical shells
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High School How the role of Mass is justified for below cases? (Earth/Moon, Jupiter/Io)
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High School Query about Pound-Rebka like experiment
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High School Could Asteroid Strikes Affect Mercury's Perihelion Advance?
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Undergrad Can We Practically Measure the Gravitomagnetic Effect with Spinning Cylinders?
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Undergrad Question re spacial curvature K(r) w/r/t the Shwarzchild metric
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Undergrad Understanding how to derive the relativistic-relative velocity formula
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Undergrad Parallel transport vs Lie dragging along a Killing vector field
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High School Accelerate Light-Clock Simulation: Proper Time & Coordinate Time
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Undergrad Hyperbolic Geom of Minkowski Space: Chung et al. 2009
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Graduate How Does Visser Derive Schwarzschild Geometry from Minkowski Space?
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Undergrad Transformations of Electromagnetic Fields: Griffiths' Claims
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High School Descending a Rotating Black Hole: Hit the Ring Singularity?
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High School Why is "time orthogonal to space" in inertial reference frames?
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Graduate Solving Jackson's 3rd Ed. Equations Involving A, L and g
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High School Can Universe Be Decelerating in Time?
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Graduate Curvature Tensor for Dual Vectors
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High School Descending a Black Hole: Spaghettification or Compression?
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Undergrad Lorentz transformation of the "bilinear spinor matrixelement"
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Graduate Constant Scalings of 4-Vectors" - Zweibach, 2nd Ed.
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High School Deriving Lorentz Transformations with 3 Postulates
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High School Solving Doubts about Simultaneity Exp. in Special Relativity
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Undergrad Choice of signature important for superluminal 4-velocity? (Minkowski)
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Graduate Understanding Killing Vector Equation Notation
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Undergrad Null Spacetime Intervals and Quantum Superposition
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Insights Is Pressure A Source Of Gravity?
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Undergrad Study After Schwarzschild Spacetime: What's Next?
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Undergrad Gravitational time dilation using an accelerating light-clock
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Undergrad Light-Cone & 4-Vector Properties
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Undergrad Spacetime Interval & Energy-Momentum 4Vec: Reconciling Hyperbolic Geometry
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Graduate Can R. Mallett's Device Overcome Energy Challenges for Time Travel?
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High School How Many Reference Frames Can Be Coincident at the Origin?
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Graduate Understanding how to derive the stress-energy tensor formula
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Undergrad Testing Gravitomagnetic Effect: Max Practical Results
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High School The Missing Mass of a reaction
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High School Unlearning the Block Universe: How Relativity Challenges Our Perception of Time
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Undergrad Mass distribution behavior of the singularities during black hole mergers
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Undergrad Interactive Spacetime Diagrams: Get Feedback on What I Built
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High School Rookie question about proper time
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Undergrad Why Can't Objects Travel Faster Than Light?
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Undergrad How to Incorporate Metric Coefficients into Worldline Plots in Curved Spacetime?
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Undergrad What Are the Physical Properties of Human-Sized Worm Holes?
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Undergrad Understanding Relation of Proper & Vector Quantities
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High School Gisin's ideas on time vs. special relativity—how does one reconcile them?
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Undergrad Relative Velocity of Particle ##p##: S vs S
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Undergrad Lorentz boost -- speed or velocity?
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