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 Can someone fact check my speech about BH?
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High School Are Geometries that contain Closed Timelike Curves Possible?
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High School Thought Experiment from my daughter regarding black holes
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High School Can Causal Loops and Time Travel Coexist?
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High School Real-Life Demonstrations of Black Holes for Video
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Undergrad Does gravity impact the speed of light?
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High School Closed Time-Like Curves: Principles & Observations
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Graduate Kottler-Moller coordinates, metric "covers" a region
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Undergrad Can someone explain this phenomena?
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Undergrad SR Time Dilation in Rigid Structure Clocks
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Undergrad Why is Hawking Radiation Unequal for Matter & Antimatter?
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Undergrad Consequences of light moving in a medium
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High School Frame Dragging: Q&A for Time Travelers
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Graduate How are curvature and field strength exactly the same?
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High School Layman's Question about Special Relativity
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Undergrad Confusion regarding acceleration in SR
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High School Gravitational Redshift: Will Two Lasers Operate Differently?
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Undergrad Killing vectors in isotropic space-times
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Undergrad Uncovering Invariance in SR: Why is $0 = (cdt)^{2}-dx^{2}$ Invariant?
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Undergrad How Does General Relativity Explain Gravity's Conundrum?
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Undergrad Understanding the Relationship Between Energy and Momentum in Special Relativity
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Undergrad Solving for the Missing Factor: Jumping into a Non-Rotating Black Hole
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Undergrad How does gravitational time dilation work?
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High School Effects of a moving mirror on a ray of light
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Undergrad Can Light Transfer Momentum to Create Sound in Air?
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Insights Lessons From the Bizzaro Universe - Comments
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Undergrad Can the Christoffel connection be observed?
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Undergrad What time structure supports info moving backward in time?
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Undergrad What Is Frame Dragging and How Does It Affect Space?
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High School How to find the dual basis vector for the following
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Graduate How was the matrix in the attachment found
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Undergrad Gravitational DE(?) from Schwartzschild spacetime
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Undergrad Index placement on 4-potential
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Graduate Why is vector made different here
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Undergrad Is there a unit system with ##\hbar=G=c=\mu_0=1##?
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Undergrad Relativity and speed of light basics
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Graduate Radiation & Non-Radiation Terms in Equation B for Moving Charged Particle
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High School How Can We Detect Gravitational Waves from Black Holes?
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Graduate Hamiltonian Integral Transformation: Insight Needed
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Graduate Gravity Field Theory in Flat Space Time: Best References
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Graduate General relativity: time dilation and speed of light
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Undergrad Coordinate and proper time, null geodesic
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High School Transformation of velocity exceeding light speed
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High School Speed of Light & Virtual Particles: Is There a Connection?
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Undergrad Lie Derivative in Relativity: Examples & Uses
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Graduate Why doesn't an electron sitting on the Earth radiate?
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High School Why Are Numerical Examples Rare in Relativity and Quantum Mechanics?
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High School What is the Definition of Improper Time in Special Relativity?
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High School Is Absolute Movement Linked to Absolute Time in 3D Space?
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Undergrad Fizeau's Exp: TRANSFORMING VELOCITIES to Explain
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Undergrad Calculating Killing vectors of Schwarzschild metric
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Undergrad Relativistic Velocity Transformation: Diff. Operator Explained
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Undergrad Does a blueshift change the energy of a photon?
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Undergrad Possible Warp Drive Physics: The Alcubierre Drive
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Undergrad Relativistic addition question
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Graduate Solving Almheriri's Dilaton-Gravity Model in AdS##_2##
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Graduate Reference for Oppenheimer Snyder Collapse Paper
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Insights Rindler Motion in Special Relativity, Part 2: Rindler Coordinates - Comments
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Undergrad Nonlinear relation between coordinate time and proper time
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Graduate Solve GHY Boundary Term Problem for Calculations
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Undergrad Constructing the Tangent Space to the Sphere: A Simple Case Study in Relativity
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High School What Is Lorentz Symmetry? Understanding & Differences
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Undergrad Origin of Deformation Energy in Curved Spacetime?
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Undergrad Solving Boundary Conditions in 4D Spacetime Volume
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Undergrad Components of Riemann Tensor: 4 Indexes, 16x16 Matrix
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High School Is Spacetime a Discrete Lattice? - Prof. Sila Beane's Experiment
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High School Understanding Time in a Moving Frame: Observer's Experiment with Egg Timers
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Undergrad Earth Between 2 Suns: Time & Space Questions
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High School Does Relativistic Mass Affect the Way We Weigh Things?
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Undergrad Calculating the Ricci tensor on the surface of a 3D sphere
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Undergrad GR: Does Clock Hypothesis Apply?
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Undergrad Measuring Magnetic Field in Rotating Frame
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Undergrad Meter stick slides over a meter wide hole at a high speed
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Undergrad Benefits & Disadvantages of Palatini Action for General Relativity
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Undergrad Speed of light around a (massive) object in space ...(i.e.sun
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Undergrad Can Momentum Exist Without Net Velocity in Special Relativity?
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High School Distribution and direction of Unruh radiation
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Undergrad Conditions for Spherically Symmetric Black Hole Solution
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High School Understanding Proper Time vs. Layman's Time
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Undergrad Comparing Lie & Covariant Derivatives of Vector Fields
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Undergrad Transition from Normal Matter to Black Hole: Thought Experiment
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Undergrad Measuring Speed of Light: Reference Guide
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High School Is it Possible to Know Which Object is Moving? Special Theory of Relativity
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Undergrad Max Amplitude Gravitational Waves: 2?
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High School Experiments to Measure Speed of Light
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High School Why we don't have several theories
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High School Relative motion and proper time
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Undergrad No Universal Chronological Order of Events? Explained
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Graduate Gravitational binding energy and the TOV limit
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Undergrad What is the gamma factor in a particle's rest frame?
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High School What is the Bridge Fall Paradox and its implications for material stress?
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High School Is Euclid's 5th Postulate Correct? - A Teacher's Perspective
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High School What is the theory of relativity?
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High School Pulsar Clock: The Mystery of Slowing Rotation in a Spaceship
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High School Light cone and Cherenkov radiation
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Undergrad Issues with the variation of Christoffel symbols
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Undergrad Examples of invariant quantities
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Undergrad Universe Inside Black Hole: Principles Different?
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Graduate Physical Basis of Lovelock's Theorem: GR & Equivalence Principle
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Undergrad Is there any way to derive the time dilation formula?
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