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 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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Graduate Einstein's Twin Paradox: Age Difference on a Rocket at the Speed of Light
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Undergrad A MACHO is passing the solar system at the velocity of .5c.
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Graduate Positively and Negatively Curved Space-time
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Graduate The concept of mass in relativity
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Graduate Light Deflection: Newton vs Relativity
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Graduate Q'izing GR retains local Lorentz invariance after all?
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Graduate Is Time Real? - Explore the Debate
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Graduate Time Dilation Paradox: Q&A Explained
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Graduate New Theory of Time: Velocity Affects Time & Experiments to Prove it
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Time travelling - Einstein's revolution
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Graduate Where and when do length and time dilation occur in special relativity?
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Graduate Is the relativity postulate of simultaneity reasonable?
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Graduate Dr. Aphos and the Theory of Relativity: A Parable of Perception and Physics
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Undergrad Is it possible to time travel according to Einstein's theory?
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Graduate Is Time Relative or Absolute in Spacetime?
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Graduate Deriving Energy in Special Relativity: The Principle of Extremal Aging
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Graduate Geometrodynamics Theory: Understanding Time and Length Dilation
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Graduate Is the Doppler effect responsible for redshifted photons and time dilation?
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Graduate Time dilation and the big bang
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Graduate What Is Background Independent Physics and How Does It Change Geometry?
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Graduate Is Time Travel Possible Through Mental Projection?
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Graduate Question about frames of reference and clocks
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Graduate Astronomy says light slows down.
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Graduate The velocity of light is constant?
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Graduate Twinship, an attempt to understand SR
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Graduate Is there only one possible future? Is free will an illusion?
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Graduate Four vectors and Lorentz invariance
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Graduate How Does Photon Doppler Shift Work in Radar Design?
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Graduate Time and Indeterminacy vs. Continuity
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Undergrad Real Time Travel: Dr. Mallet & His Time Machine
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Graduate Gravitational & Inertial Mass: Why the Difference?
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Graduate Velocity Calculation with c^2 Substitution
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Graduate The Path of Light from Distant Galaxies: With or Without Dark Matter and Energy?
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Graduate What is Mach's Principle and its significance in modern physics?
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Graduate Is the Transverse Doppler Effect Dependent on General Relativity?
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High School Introduction to Black Holes: Newbie Questions Answered
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Graduate How Could Naked Singularities Exist Beyond the Event Horizon?
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Graduate Perception of Time: How Energy & Gravity Affect Our View of Time
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Graduate GR and SR and the speed of change
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Graduate Nature of the cosmological constant
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