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.
High School Is gravity both a force and not a force?
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High School Exploring the Merger of 2 Black Holes: A 4th Dimensional Perspective
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Undergrad Rotating Black Holes: A Century of Discovery & Beyond
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High School GR Curvature at Light Cone Surface: Smooth, Bent, Blocked?
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Undergrad First Energy or Mass: Universe Origins
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High School Does an object moving in a geodesic accelerate?
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Undergrad What happens at r ≤ rS in the Schwarzschild metric?
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Undergrad Question about modeling continuous spacetime
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Undergrad Particle at event horizon as black hole evaporates
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Undergrad Relativistic Aberration Formula & Lorentz Transformation
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High School Identical devices in different places
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High School How Does Time Travel Influence Aging?
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Graduate Gravitational Bending of Light: Equation for Photon Trajectory in Strong Fields
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Undergrad The spacetime curvature changed by an object
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Graduate Plasma physics - relativistic derivation
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High School Does Zero Rest Mass Mean No Particle Exists?
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Undergrad Traveling at a speed faster than light
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Undergrad Gravitational time dilation, proper time and spacetime interval
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High School Can Time Really Loop and Repeat Itself in the Universe?
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High School Simultaneity in Non-Observable Universe: Is it Possible?
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Graduate Speed of Gravitational Waves confirmed by Experiment?
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Undergrad Gravitational Influence: Limits & GR Effects
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Undergrad Diffeomorphism invariance of GR
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High School Micro Black Holes: The Possibility of Creating an Extra Dimension
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Undergrad Why can't the interior of a black hole be empty?
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Undergrad Simultaneity of Events: Rest vs Motion
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Undergrad How is SR applied to circular motion?
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Undergrad Time dilation (speed Vs. acceleration)
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Undergrad Explaining Extreme Spacetime Curvature & Time Physics
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Undergrad Inconsistency in Length contraction
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Undergrad Does Spacetime Have Elastic Properties?
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Undergrad Einstein's light clock thought experiment
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Undergrad Understanding Black Hole Shapes & Forms
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Undergrad Difference between Schwarzschild metric and Gravity well.
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High School Moving in the 4th Dimension -- Does Time have a velocity?
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Undergrad When will metric compatibility hold/not hold?
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High School Light: Gravity, Force & Massless Inquiry
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Undergrad Resolving the Three Colliding Observers Paradox in Special Relativity
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Undergrad Classical mass vs. relativistic mass for electronic analogy
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Undergrad Relativistic mass increase (simple or not)
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High School Is Time Travel Feasible Within the Limits of Light and Atomic Interactions?
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Undergrad How Does Relativistic Angular Velocity Affect a Rotating Disk's Behavior?
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Undergrad Time Dilation and the Twin Paradox: A Look at the Relativistic Doppler Effect
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Undergrad Solving Covariant Derivatives: Minkowskian Metric
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Undergrad Solving General Relativity Equations
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High School Understanding Centre of Mass in Stationary Objects
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Undergrad What happens to local clock when many observers are moving wrt each other?
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Undergrad Length-contraction time-dilation fallacy & length measurement
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Undergrad Relativity of Simultaneity: Analyzing Wavelengths
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High School Understanding Earth's Time Difference from the Sun: 16-Minute Delay Explained
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Undergrad Can spacetime curvature be transformed away?
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Undergrad What constrains the metric tensor field in GR?
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High School Being on a different IRF, wouldn't light appear to slow?
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Undergrad Observing a mass forever approaching a BH, and BH growth
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Undergrad Can Emission Theory Produce Doppler-Shift Formula?
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High School Can a Spinning Object Increase its Mass through Acceleration?
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Undergrad How Ebeb's Diagram Reveals Time Dilation
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High School Does Earth's Mass Affect the Length of a Day?
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High School Can we detect changes inside a black hole through orbits?
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Graduate Kerr-Newman BH Mass: Relationship to Angular Momentum & Charge
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High School Gravity and the Direction of Time
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Undergrad Energy density and pressure of perfect fluid
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Undergrad Merging Charged BHs: Is A's Observation Continuous or Discontinuous?
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Undergrad Twin paradox in GR - negative time?
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Undergrad Questions I have been thinking of regarding black holes
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Undergrad Where does the line element of Minkowiski space come from?
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Undergrad Relativistic Field Transformations and EM Waves
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High School Special Relativity: Time Dilation Explained
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High School Does Mass determine our depth in the fabric of space?
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Graduate Solve Bending of Light Formula Problem
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Undergrad Two Conserved Quantities Along Geodesic
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High School Uniform-gravitational time dilation -- exact or approximate
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Undergrad Is Time Just a Stubborn Illusion in the Block Universe Theory?
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High School Universe Age and Size: A Matter of Perspective?
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High School What course would explain why c is a hard limit?
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Undergrad Time dilation in components of an object
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Undergrad How do things pass through event horizons?
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Undergrad Did Newton Believe in Absolute Motion? A Closer Look at His Arguments
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Graduate Schwarzschild-deSitter Metric: Radial Locations of Event Horizons
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Undergrad Laws of physics and inertial systems
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High School Special relativity and expansion of the Universe, A paradox
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Undergrad What force accelerates a car down hill?
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High School How are the concepts of space, time, and space-time related?
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Undergrad Black Hole Formation Sequence: Time in the Equations?
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Undergrad Twin Paradox - Observation at Turnaround Moment
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Undergrad Confusing descriptions of an "expanding" universe
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Undergrad Spin 0 Particles & General Relativity | Carrolls Notes
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Undergrad Why Denote 1 Form as dx? - Sean Carroll's Lecture Notes on GR
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Undergrad Frames of Reference and Time Perception in Space Travel
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Undergrad Finding Stress-Energy Tensor: General Rules & Variational Principle
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High School Length Contraction: Real Compressive Forces?
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Undergrad EM Waves in a Rotating Frame: Questions & Answers
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Undergrad Calculating the Optical Appearance of Rolling Rings: A Methodology by Ø. Grøn
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Undergrad Explore Black Hole Orbits with My Kerr Orbit Simulator on YouTube
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High School Preserve Fresh Meat: Spin at Relativistic Speeds?
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High School Does Acceleration Affect Time Dilation?
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Graduate Algebraic Proofs of Levi-Civita Symbol Identities
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Undergrad Einstein clock syncing with one way light emission absorber
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High School Gravity facts, or close to fact
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Undergrad Einstein's elevator: gravity without curvature?
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