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 Einstein Proven Right by 2017 Eclipse? Investigation
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Undergrad Shape of Vacuum Space: Constant Spatial Volume with Time
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Undergrad LIGO and light speed constancy
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High School Do Gravitational Waves Always Travel at the Speed of Light?
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Graduate Does the inverse square law hold indefinitely for gravity?
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Undergrad Are Local Lorentz Transformations Possible with Varying ##\vec{x}##?
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Undergrad Are Electric and Gravitational Fields Different for Moving Objects?
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Undergrad Speed of light on a moving platform
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High School Relative Rotation: Physics Approach for Newton's Bucket in Empty Universe
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Undergrad Stress Energy Tensor: How Does It Implicate Flow of Energy?
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High School Postulates of General Relativity
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Undergrad Can two gravitational waves orbit each other?
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Undergrad Positive Charge Magnetic Fields: Real World Examples
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Graduate Black Hole Merger: Analytical or Numerical Solutions?
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Undergrad Velocity Addition Formula: u_y > c?
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Undergrad Unexpected result on Lorentz transformation
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Undergrad Understanding Stress Energy Tensor of Fluids
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Undergrad Index Gymnastics: Matrix Representations & Rank-2 Tensor Components
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Undergrad Does Feynman's Work on Gravitons Clarify Quantum Gravity?
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Graduate Derive the Bianchi identities from a variational principle?
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High School What happens when you solve for c?
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High School Concept of the stability of the speed of light
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High School Can Relativity Theories Actually Permit Faster-Than-Light Travel?
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Undergrad Pressure term in the energy stress tensor
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High School Newb question about relativistic mass
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Undergrad How does Einstein define simultaneity in his 1905 paper?
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Undergrad Comparing Vacuum Solutions to Topologies of Einstein Space
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Graduate How Does Physics Behave in 2+2 Dimensional Spacetimes?
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Undergrad Is Gravity Invariant During Motion?
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High School Electric+Magnetic Force Between a & b Charges: Inertial Frames
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Undergrad Twin paradox in SR and its applicability to radioactive decay
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High School Center of momentum and mass energy equivalence
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Undergrad Proper time to reach the singularity - rocket acceleration
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Undergrad How does this not get me traveling to another star FTL?
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High School Understanding Mass and Density in Relativity Theory: A Critical Analysis
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High School Could this FTL idea with a fast moving large mass be possibl
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Undergrad Photon states should not evolve?
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Undergrad How can information possibly be created?
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Undergrad How much would time pass between watching the sun set ....?
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High School The "why" behind time dilation
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High School How does time behave in overlapping gravitational fields?
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Undergrad Time in QFT vs. QM: Exploring Differences in Treatment
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High School Can Light Speed Travel Change Our Perception of Time at Proxima Centauri?
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Undergrad Gravitational time dilation in Weinberg's "Cosmology"
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High School Solving Mysterious Relativity Paradox: New Derivation of E=mc^2
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Undergrad Non-radial geodesics in Schwarzschild spacetime
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Undergrad My conclusions regarding "the laws of nature"
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High School Einstein's theory of relativity and time travel
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Graduate What is the significance of the nonholonomity condition in General Relativity?
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Undergrad Domain of Applicability of Post-Newtonian Formalism
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Graduate Unstable 5D Theories: The Search for Stable Black Holes in Higher Dimensions
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Graduate Corollaries of Lorentz Invariance: Overview & Explanation
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High School Is there any proof that gravity is an attractive force?
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Undergrad Why do people keep saying photons are timeless?
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Undergrad Force on an Object according to the General theory of relativity
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Undergrad Could Gravity Ever Be Negative?
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High School Does gravitational time dilation cause gravity's attraction?
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High School Does Gravity Have the Power to Slow Down Light?
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Undergrad Relativistic Aberration: Intuitive Understanding
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High School Minkowski metric, scalar product, why the minus sign?
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Undergrad Derivation of geodesic equation from the action - quick question
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High School Newton's law under Lorentz transformation
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Undergrad Mechanical clocks and time dilation
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Undergrad Is the Massless Photon Explanation for E=mc2 Valid?
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Undergrad Does the *First Postulate* Prohibit different time dilations?
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Undergrad Solving Quantum Mechanics in Space-Time: Effects of General Relativity
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Undergrad Is there an analog to Einstein's field equations for 2D?
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High School Fourier Transform of Spacetime
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Undergrad How to prove gravitational mass & inertial mass equivalence?
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Graduate Taylor expansion of dispersion relation - plasma physics
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High School Can space be curved in relation to an absolute straight space?
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Undergrad Length Contraction: Muon vs Earth Frames
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Undergrad Really parabolic light ray in an accelerated elevator?
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Undergrad Gravitational Bending vs. Refraction
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Undergrad Spaceship moves away from the Earth
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Undergrad Inflation theory and General Relativity
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Undergrad Can Flamm's Paraboloid be described by Cartesian equations?
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Graduate The Connection Between Geodesics and the Lagrangian | Explained in Textbook
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Graduate What is the concept of no prior geometry in GR?
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Undergrad Is Expansion the Same as Contraction?
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Undergrad Large object entering a small BH
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High School False predictions of relativistic mass
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High School How does this equation imply that time slows down?
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High School Einstein's Equivalence Principle: What's New?
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High School Unify General Relativity & Quantum Theory | Stephen Hawking
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High School Mass and energy from Earth's gravitational field
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Undergrad Michelson Morley experiment: relativistic explanation
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High School Special relativity and the flow of time?
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Undergrad Non-Vacuum Solutions for Black Hole Evaporation and Quantum Gravity
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Undergrad Gravity as geometry vs gravity traveling at c
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Undergrad Why are the equations for dt/du and Dt[a]/Du equal in the geodesic equation?
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Undergrad Detecting Gravitons: Challenging the Foundations of General Relativity
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Undergrad GR and its bending of space time
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Graduate Is the Metric Tensor Invariant under Lorenz Transformations in M4?
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Undergrad Bending of light - caused by gravity or relativity?
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Undergrad White holes and other universes
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Graduate Solving BTZ Black Hole w/ Euclidean Method
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Undergrad Metric for Lambdavacuum EFE - Radial Coordinates
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Undergrad Curvature of space and spacetime
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Graduate On the formation of a black hole due to high kinetic energy
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