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 Aging Without Movement: How Long Would We Live?
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Graduate Can light exist without space time?
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Undergrad Not a scientist, just wondering -- Shining a laser pointer into space
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Graduate Does the Sagnac Effect Indicate Rotation in Non-Rotating Gyroscope Frames?
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Graduate Black Hole Hawking Radiation: Frame-Dependent Virtual Particles
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Graduate How Can a Photon Oscillate with a Frequency If Time Stops at Light Speed?
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Graduate Space-Time Projection on Space
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Graduate Help with Exercise 7.1 - MTW Chapter 6
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Graduate Uncovering the Reality of Space-Time: Separating Fact from Fiction
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Graduate Can You See Your Reflection While Traveling at Light Speed?
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Graduate Speed of light and planck length
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Graduate Variation of the Christoffel Symbols
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Graduate Is there a minimum speed in the universe besides the maximum speed of light?
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Graduate Poincare Transformations: Parametrization-Independent
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Graduate Stress and pressure as gravitational source
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Graduate Time Dilation, Twin paradox etc.
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Graduate Understanding Minkowski Space Metrics: The Sign Reversal Mystery Explained
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Graduate Newtonian and GR Friedman equation
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Graduate How does one get time dilation, length contraction, and E=mc^2 from spacetime metric?
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Graduate How do you derive relativistic tensors in an orthonormal basis?
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Graduate Geodesics - Some help, please.
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Graduate Time dilation on the surface of a planet and escape velocity time dilation
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High School Explaining E=mc²: Simplified for 12-Year-Olds
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Graduate Perception of faster than light travel?
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Graduate Do all elements of the stress energy tensor really have the same units?
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Graduate Deriving the Expression for Total Energy: Understanding E = gamma mc^2
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Graduate Doppler Shift of Light: Visible-to-UV Properties?
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Graduate Can't Tell If you are shrinking?
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Graduate Re-Examining Black Holes and the Standard Model
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Graduate Can Space Curve Faster Than Light?
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Undergrad Will Distance Between Footsteps Change When Walking Near Light Speed?
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Graduate Spherical EM Wave: Origin at t=0, S & S' Agree?
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Graduate Null Hypersurface: Building a Tangent Surface in 2 Dimensions
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Graduate What Are Tension Shells and Tension Stars in Israel Formalism?
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Graduate Special Relativity as a source of Power?
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Graduate Energy Momentum Tensor - General Properties
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High School How Does Gravity Affect Rocket Launches from Different Points on Earth?
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Graduate EM Wave Equation in Higher Dimensions: Gravitation Text
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Graduate Can I Prevent Black Hole Formation?
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Graduate An apparent paradox with couple of frames
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Graduate Deriving the Schwarzchild radius?
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Graduate Equations of Gyrostatic Aether: McCullach & Kelvin
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Graduate Does Antisymmetrization in Wedge Product Skip Basis Effects?
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Graduate Why Do We Discuss Light Cones and Black Holes If There's No Light Present?
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Graduate Time Travel: Does General Relativity Allow It?
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Graduate Relativistic Particle Action: Minimize Length & Avoid Problems
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Graduate Why Can't We Do Algebraic Methods with Tensors?
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Undergrad Does Light Have Mass? Astrophysics Discussion
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Graduate Derivations of Einstein field equations
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Graduate Does Einstein's synchronization scheme have hidden assumptions in SRT?
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Graduate Question concerning speed of light in reference frames
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Graduate Does object gain mass when spinning?
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Graduate FTL Communication: The Long Pole Experiment & Modification
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Graduate Conservation of Energy & Momentum: Solve for v2
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Graduate Solving Dimensional Analysis Problems in Stress Energy Momentum Tensor
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Graduate How Do Light Cones Differ in Accelerating vs. Decelerating Expansions?
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Graduate Event Horizon Properties for Incoming Matter Explained
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Graduate Special Relativity Equation: Is This Accurate?
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Graduate Time Dilation Issues: Expert Answers
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Graduate Educational paper and video, Bertozzi, "The Ultimate Speed"
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Graduate Growing Black Hole Metric Approximation: 2MG/c^2
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Graduate Is Special Relativity Testable?
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Graduate Sagnac Effect on Equatorial Plane: MG-P Exp & GR Twist
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High School Spacetime, Gravity & My Theory - A Year 9 Perspective
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Graduate Defining simultaneous as what you see now
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Undergrad Does acceleration change according to inertial frame of reference?
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High School Rest Mass Definition: What is E=MC2?
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Graduate Time Dilation and Muon Energy vs. height (Muon Experiment)
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Graduate Gravitational redshift with time dilation?
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Undergrad Query regarding Special Relativity
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Graduate Relativistic Doppler Color Shift of White Light from Sun
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Graduate Photon Elapsed Time Equation: Calculating 24hrs
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Graduate The Nature of Time: Physicist's Interpretations & Thought Experiments
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Graduate Speculation on the nature of collapsed stellar cores
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Physics at its Finest: Simple, Definitive, Unambiguous, Conclusive
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Graduate Viewing a (giant) clock at relativistic speed
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Graduate Equivalence Principle in muon experiment?
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Graduate Orbits around a Schwarzschild/Kerr black hole
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Graduate Black hole formation with golf balls in GR
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Graduate Deriving Møller's Relativistic Minimum Radius for Rotating Bodies
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Graduate Maximum magnetic field from moving charge
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Graduate Update: Negation of the Grandfather Paradox
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Graduate Matter breaking the speed of light? [Nope]
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Graduate Time Lapse Simulations: Traveling Through Space at Light Speed
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Graduate Understand Mass-Energy Equivalence: Einstein's Thought Exp.
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Undergrad Speed of Light: Is There Anything Faster?
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Graduate Covariant derivative of covector
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Graduate What is the relationship between classical and relativistic Doppler formulas?
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Graduate Lorentz-Invariant Scalar Products
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Graduate Observational Evidence of Black Holes
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Graduate Gravitational Waves: Lone Body in Universe
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Graduate How Do You Calculate the Magnitude of a 4-Vector?
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Graduate Deriving Metric $$g_{ij}$$ w/ Respect to Time t
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Graduate Why isn't the light signal from a falling spaceship Doppler shifted?
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Graduate Gravitational Fields Created by EM Waves: Reference Frame?
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Graduate Solving the Horizontal Light Clock Puzzle: Length Contraction & Frame Shifting
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Graduate Space-Time Vibs: Moving Objs Effects & Cycle
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Graduate Does Relativity Allow for Non-Locality in the Universe?
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Graduate Special relativity and accelerated frames
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Graduate Universe Age: Why Is There a Set Number?
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