Special and General Relativity Forum

Undergrad Understanding Gravitational Energy in Motion

Graduate Gravitational vs Inertial Mass

Graduate Are kinetic and gravitational time dilation connected?

Graduate SR Doppler Redshift & SR Time Dilation

High School Car as fast as the speed of light

High School Looking for Layman's Physical Explanation for Gravitational Time Dilation

Graduate Questions about gravity and curved space

Graduate Is Mach's Principle incorporated into General Relativity?

Graduate Is relativistic effect of length contraction physically unreal ?

Graduate What Are the Latest Precision Tests of the Inverse Square Law for Gravity?

Graduate Are All Particles Actually Naked Black Holes?

Undergrad Gravity: Sun Moves 10 Miles - Effects on Earth?

Graduate Spacetime - infinite or expanding?

Graduate Where to find solved problems on relativistic kinematics and dynamics?

Graduate Can Geodesics Cross in General Relativity?

Graduate Twin paradox: how does nature determine which twin accelerates?

High School Does E=MC2 Determine a Body's Gravity?

High School Is Stopping Time Truly Impossible?

Graduate How Does Gravity Influence Time in Our Universe?

Graduate Is There a Limit to How Much Space-Time Can Curve?

Graduate G_ab: Calculating a Corrected Value

Graduate Do rigid bodies exist in special and general relativity?

Graduate Amplified frame-dragging effects due to superconductors?

Undergrad Do Massive Objects Float Above or Rest on the Fabric of Space?

Graduate Nonstandard relativistic dynamics

Graduate Is relativistic effect of length contraction physically real ?

Graduate Questions about the Velocity of Light

Graduate Special Relativity, Question on C and Time Dilation

Undergrad Can someone explain equivalence of gravity and inertia?

Undergrad Quantum Gravity in Relation to Gravitational Waves

Graduate Can a black hole predict its own growth before it happens?

Undergrad Space and time. What I dont know but would like to

Graduate Temperature of fast objects decreases?

Graduate Quantifying Negative Energy from Entropy

Undergrad Can any one explain me about the bigbang singularity

Graduate Spacetime Immutability: Is it True?

Graduate How do the Ricci and Riemann tensors differ and what is each used for?

Graduate What Gives a Motionless Meteorite Shard Momentum in the Curvature of the Sun?

Graduate Curl added to the spacetime metric.

Graduate Hard time grasping the concept of the Geodesic

Graduate Non Twin Spaceflight Time Dilation

Graduate Do light waves exist in a 2D projection due to length contraction?

Graduate How are tensors transformed in non-linear coordinate systems?

Graduate Light propagation in a moving train frame

Graduate What Limits Light-Speed in Space-Time Theory?

Graduate Gravitational time dilation explanation for Newtonian gravity?

Graduate Time Travel in Special Relativity

Graduate How does gravity curve spacetime?

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Graduate Does the Earth's Rotation Affect Time Dilation in Einstein's Twin Paradox?

Graduate Hubble Redshift: New Paper on Its Implications

Graduate Symplectic mechanics - elementary particles

Graduate Best name for the length of a moving rod measured by a stationary observer

High School Why doesn't the definition of matter include time?

Graduate Is there any exp. evid that massless photons cuves spacetime?

Graduate Is there a formula for space creation during universe expansion?

Graduate Tension in space in Newtonian gravity

Undergrad Warping of Space-time, Confusion about the illustration

Graduate Could I really be as massive as the entire universe?

Graduate Is the Equivalence Principle Contradictory in General Relativity?

Graduate Simple math question regarding Lorentz Invariance

Graduate Negative Mass: Fact or Fiction?

Graduate Does time exist without mass in a vacuum?

Graduate Is this trigonometric derivation of gamma correct?

Graduate Is General Relativity Exclusively a Macroscopic Theory?

Graduate My First ST Diagram: Testing SR Understanding

Graduate How the last part relative to the azimuthal angle works

Graduate Why the Six Generators of the Restrict Lorentz Group

Graduate Why is the sign of p^0 invariant for orthochronous Lorentz transformations?

Graduate Explaining the Blue Shift in Terms of the Strong Equivalence Principle

Graduate Deriving the Chern-Simons dispersion relation from Maxwell equations

Graduate Can Satellites Measure Earth's Geode Using Velocity Instead of Position?

Graduate Angular Momentum and the speed of light

Graduate Physical law from experimental data

Graduate Why Do Square and Rhombus Grids in Spacetime Diagrams Have Equal Areas?

Undergrad Current Applications of the Theory of Relativity?

Graduate What would happen if you tossed one end of a wormhole into the other end?

Graduate Why does the photon bounce vertically in the light-clock?

Graduate Why does v = ds/dt work when the ship measures different distance and time?

Graduate Idiot trying to grasp relativity with a couple questions

Graduate Newton's Third Law and Relativity

Graduate Would Einstein Object? The Lorentz Transformations

Graduate Inertial frames vs velocity vectors

Graduate Electromagnetic spacetime curvature effects

Graduate What is the exact physical extent of a black hole singularity?

High School Schwarzschild Radius and gravitational constant

Undergrad Relativity, speed of light and stuff

Graduate Is an isometry always a statement about the principle of covariance?

Graduate Does electrical-magnetic fields curve spacetime?

Undergrad Why does light appear distorted at different speeds?

Graduate Why does the twin paradox seem to imply an aether?

Undergrad Do we also travel at a fixed velocity?

Graduate Lorentz Transformations: Understanding and Deriving Acceleration Expressions

Undergrad Understanding Michelson-Morley Experiment

Graduate Why does stress-energy tensor change between reference frames?

Graduate What allows the universe to expand faster than the speed of light?

Graduate Search for a correct explanation

Graduate One-parameter family of metrics

Graduate Lorentz contraction of box filled with gas

Graduate Tensors of Relativity: Inner vs Outer Indices

Graduate How Does Relativistic Doppler Effect Impact Perception in Space Travel?