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 the Lorentz factor be modified for non-inertial frames?
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High School Spacetime curvature due to acceleration causing gravity?
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High School What is the relationship between time and 1D space?
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Undergrad Cosmological Constant Term in Einstein Equations
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Undergrad General Relativity rocket puzzle
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Undergrad What happens to the energy lost by photons in gravity?
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High School Is the Space with Ricci Scalar Zero Flat?
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Undergrad Gravitational wave interference
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Undergrad Question about the limits of space contraction near light speed
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Undergrad Is Simultaneity in Einstein's Thought Experiment a Matter of Perspective?
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Undergrad Calculating Acceleration of Gravity w/ Geodesic Deviation: Troubleshooting
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High School How did Einstein come up with the thought of a space fabric?
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Undergrad Legendre Transform: Momentum & Velocity
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Undergrad Massive Particles in Sonic & Slow Light Black Holes
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High School Impression of relative velocities
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Undergrad Photon Timelessness: Does It Exist?
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Undergrad Energy Density & Mass Density: Explained
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Undergrad About spacetime coordinate systems
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Undergrad Any direct evidence of gravitational mass increase?
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Undergrad Speed of Light in Materials: Explained
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High School "Spacetime Physics" by Taylor and Wheeler
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High School 4 four momentum energy component direction
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Undergrad Falling electric dipole contradicts the equivalence principle?
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Undergrad Why Are Maxwell's Equations Invariant Across Reference Frames?
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High School Solving the Kerr metric in the program Maxima
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Undergrad What does coupling mean in physics?
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Undergrad Paradox: Rocket ship moving in a circle
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Undergrad Energy Tensor Gradients: ∂βTμυ
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Undergrad Allowed transformations in General Relativity
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Undergrad What do we mean when we say something transforms "under"....
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High School What am I Missing Here? Play from 3:00
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High School Satellite Clocks: General & Special Relativity Time Variations
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Undergrad Gravitational Time Dilation: Radius & Clock Rate Variation Explained
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Undergrad Does Special Relativity Deal with Non-Inertial Frames?
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High School Can we truly understand the concept of time?
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Undergrad Why Do Lorentz Transforms Look Like This?
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High School Muons traveling to Earth, time dilation question
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High School Hawking Radiation and Shrinking Black Holes
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High School Sun Time vs Earth Time: Lorentz Transformations?
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Undergrad Harnessing Energy from Black Holes: Possibility or Fantasy?
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Undergrad Extended Twin Paradox: Explaining Time Lapse and Symmetry Principle
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High School Solve FTL Problem with Faraday Cage and Relativity Theory
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Undergrad How Do David and John Experience Proper Time Differently in Special Relativity?
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Undergrad Can Gravitational Waves Affect Light Wavelengths?
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High School Can Curving a Space-Cone Create a Black Hole?
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High School Relativistic Mass-Energy: Charge & Particles
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High School Gravitational Redshift and its effects on Photon
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High School Is Spacetime Truly a Finished Block or an Open-Ended Concept?
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Undergrad Acceleration Frame Dependency - General Relativity
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Undergrad Calculate mass from time dilation
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Graduate Derivation of the Noether current - Lorentz Transformation
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High School Do Permanent Magnets Bend Spacetime? Basic Thread
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Undergrad Find Tangent Vector to Curve in 2D Cartesian Coordinates
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High School Cause of time dilation when net gravity is zero
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Undergrad Contravariant derivative of tensor of rank 1
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Undergrad Coordinate Change & Gravity: A Schwazschild Metric Analysis
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Undergrad Riemann Tensor: Questions & Geometric Interpretation
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Undergrad Measuring Charge & Angular Momentum in Black Holes
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Undergrad The Commutator of Vector Fields: Explained & Examples
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Undergrad Varying The Relativistic Action
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Undergrad Why is √(gμνdxμdxν) the Lagrangian for Geodesic Eq?
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Graduate Einstein's Definition of Mass: m = E/c^2
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High School Does the mass of an object increase in a gravitational field?
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High School Measuring Michelson–Morley light beams
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High School Gravitational force of the Earth and Moon
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High School Gravitational waves for data communication?
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Undergrad Doppler like effect affecting observed time for a moving object
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Undergrad Second Derivative of Time Dilation Equation
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Undergrad Minus sign in Minkovsky´s metric
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Undergrad Inhomogeneous Wave Eq. & Minkowski Spacetime Interval
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Graduate Understanding the Tetrad Formalism in General Relativity
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Undergrad Simultaneity on a moving train
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Undergrad Gravity in General Relativity: Explaining Acceleration
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Undergrad Zero Gravity Near a Black Hole?
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Undergrad Detect Negative Mass Matter: Experiments in Solar System
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High School Minkowski Diagram: Expanding Universe
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Graduate Action for a relativistic free particle
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Undergrad Negative Mass & White Holes: Does It Create?
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High School What Happens When We Cross the Event Horizon of a Black Hole?
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Undergrad Is a clock on the equator time dilated?
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High School Can gravitational time dilation explain the photon's deflection near the Sun?
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Undergrad Orbital Simulator with general relativity
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Undergrad How does everything move at C through spacetime?
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Graduate How Does the Four-Way Vector Operation Relate to Potential Energy in Gravity?
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Undergrad Lorentz Transformation in One-Dimensional Space
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Undergrad Maximally extended Schwarzschild spacetime
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High School Speed of Light -- Why doesn't it add to the speed of the emission source?
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Undergrad Einstein's Elevator: Gravity vs Acceleration
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Undergrad Time Before Big Bang: Relational Dynamics & Singularities
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High School Travel at 0.5c & Observe Redshifted Light Traveling at c
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Undergrad Find E' in FLP Volume 1 17.4: Why Does It Work?
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Graduate Levi Civita - SO(4) Group Theory: Proving Relation in Landau and Lifshitz
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Undergrad Locally inertial reference frame problem
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Undergrad What is the canonical form of the metric?
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High School Take on Length Contraction at relativistic speeds
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High School Beyond the Black Hole Singularity
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Undergrad Can two inertial frames differ by the speed of light?
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Graduate Einstein Field Equations: Covariant vs Contravariant
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Undergrad Solve General Relativity "Paradox" w/ Automatic Diff. ODE Solver
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Undergrad Understanding the Relative Velocity Paradox
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