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.
Graduate Time travel and Multiverse Theory
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Graduate Time Travel: Paradox, Parallel or Repetitive?
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Graduate Why Haven't Two Clocks on a Table Been Used to Measure Light's One-Way Speed?
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Graduate Speed of Light Broken? | Special Relativity
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Undergrad How Does Gravity Shape Space-Time Beyond Simple Indentations?
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Graduate Why is then Time Travel possible?
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Undergrad Could 2D Time Revolutionize Tic-Tac-Toe Gameplay?
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Is Time Travel Just a Concept?
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Graduate What is the primary concept between absoluteness and relativity?
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Undergrad Does Time Dilation Make Me See More?
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Graduate Metric Tensor & 4-Vector: Unit of Measurement
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Undergrad Gravity: Attraction of Two Particles vs. Two Objects
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Graduate Has ayone seen the lost simultaneity?
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Graduate Visualizing Space: A Thought Experiment with a Rotating Rod and Flashlight
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Graduate Movement through space or movement through time?
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Graduate Does mass decrease with expansion
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Graduate Questions of the equivalence principle
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Graduate What Did Einstein Mean by "Everything Travels at the Speed of Light"?
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Graduate Equivalence and derivation of general relativity
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High School Why Can't Anything Travel Faster Than Light?
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Undergrad Clarifying Confusion: Understanding Einstein's Theory of Relativity
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Graduate Today Special Relativity dies
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Graduate Is the temperature of a black hole infinite as its mass approaches zero?
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Graduate Solving the Riddle of Sorts: Who Signed the Peace Agreement First?
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Graduate Red shift frequency from a black hole
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Graduate Today Special Relativity is still alive
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Graduate Michelson - Morley Experiment Revisited
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If we are light, what would we see?
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Graduate How do gravitons behave in relation to general relativity?
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Graduate Does the gravitational force actually exist?
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Graduate Unification of Quantum Theory and General Relativity
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Graduate Resolve the Bug-Rivet Paradox - Strange SR Paradox
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Graduate Curvature and General Relativity
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Graduate Relativity Paradox: Clock Readings at B & B*
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Graduate Why Does Time Behave So Uniquely in the Sun's Core?
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Undergrad What Happens to Gravitational Force at the Center of the Earth?
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Graduate Official speculation as to constant c
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Graduate Experimental support for SR & GR
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Graduate Can string/brane theory generate spacetime warps with gravitons?
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Graduate Curvature of reciprocal Euclidean space
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Graduate Two event horizons in close proximity
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Will 2025 be the next big celebration for physics?
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Graduate Richard Feynman's Spacetime Paradox: Can We Know Things in Space-Like Intervals?
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Graduate Entropy & Black Holes: The Relationship Between Area & Information
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Graduate Can Gravitational Waves Influence Photon Polarization in EPR Experiments?
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Graduate Gravity & LIGO: Wave Length, Amplitude & Gravitons
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Undergrad Calculating speed from acceleration
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Graduate False Claims of Gravity Propagation Limit
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Graduate Do Gravitons Lose Energy in a Proton's Gravitational Field?
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Graduate Einstein's Train and a simple consequence
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Graduate Isn't this a weak basis for time paradoxes ?
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Graduate Equivalence principle + light speed postulate =
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Graduate General relativity and Newton's laws
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Graduate I can't see how stress-energy tensor meets the minumum tensor requirement
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Graduate Why do people talk as if the Twin Paradox is problematic?
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Graduate What is the Relationship Between Space and Time?
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Graduate How are the Riemann tensor of curvature and the Hamilton operator connected?
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Graduate One-off: Black drop problem an SR effect?
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High School Gravity Above 8000km: How Distance Affects Attraction
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High School Unraveling the Time Travel Paradox - The Truth About Space and Time
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Graduate Riemann-Christoffel Covariant differentation
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Undergrad Help With Dilation: Get Answers Here
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Graduate Can you solve Einstein's Train Paradox?
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Graduate Understanding Special Relativity: Counter Rotating Frames in Motion
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Graduate String theory verses Special Relativity
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Graduate Conundrum Regarding the Lack of an Absolute Frame of Reference
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Graduate Measuring Time: A Revolutionary Method
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Graduate What is the relative speed of photons?
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Graduate Is It Possible to Escape a Black Hole Using Charge?
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Undergrad Two Questions about Black Holes and Laws of Physics
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Graduate Understanding Relativity: Demystifying the GPS Satellite System Calculation
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Graduate Why is energy-momentum symmetry important in special relativity?
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Graduate Maximum Temporal Distance Between Events That Are Simultaneous in Another Frame
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Graduate Multiple Big Bangs: Could Symmetry Explain Quantum 'Spookieness'?
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Graduate Is Relativity Incorrect? Examining Motion and Perception Evidence
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Graduate Is Acceleration Relative Or Absolute
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Graduate Can Spinors Bridge the Gap Between Quantum Mechanics and General Relativity?
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Graduate The Derivative of Lorentz Transformation
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Graduate Gravitationally accelerated electron
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Messages from the Future: Is Time Travel Possible?
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Graduate Can Gravity Escape a Black Hole Faster Than Light?
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Graduate SR Simultaneous Lines Drawn in the Sand
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Graduate Inertial reference frames
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Graduate Can light be instantaneous and yet measured as 'c'?
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Graduate Does the Michelson-Morley Experiment Support the Constant Speed of Light Theory?
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Undergrad What is stress-energy and how does it differ from other forms of energy?
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Graduate (1 - 2 GM/ r c^2) ^ 1/2 and Big Bang
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Graduate Question: Can Gravity Accelerate Beyond the Speed of Light?
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Graduate Solve the Mystery: Where is My Error in E=mc^2 Calculation?
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Graduate Relativity & Reality: Electric Charges as the Only Real Entities?
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Graduate Acceleration by the Casimir effect: violation of relativity?
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Time travel into future possible
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Undergrad What Did Einstein Imagine When Riding on a Beam of Light?
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Graduate Experiment to determine if OWLS is same
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Graduate Lorentz transform and muon half-life, Help, please
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Graduate Lorentz Transform Troubles: Seeking Help with Equations and Substitutions
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Undergrad Can Slowing Down Light Unlock the Secrets of Time Travel?
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Graduate Why Don't Light Beams Add to Double the Speed?
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Graduate Mass and Curved Space Question
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Undergrad Can a Strong Cable Connect Planets Faster Than the Speed of Light?
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