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 Same experiment performed in different inertial reference frames
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Graduate What is the Relative Speed of Photons in Opposite Directions?
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Undergrad Twins in Motion: A Thought Experiment on Relative Speed and Age Differences
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Graduate Do the laws of relativity hold true for all forms of media?
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Graduate Doppler Effect & Einstein's Theory: Explained & Proven?
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Graduate What is the Relationship Between Time and Gravity in the Early Universe?
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Graduate Why aren't electrons considered black holes ?
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Graduate Stress-Energy tensor of a rotating disk
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Graduate Are you sure that objects which moves enought fast are not black holes?
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Graduate Calculating Mass-Energy of a System Without Using Pseudotensors
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Graduate A question about the rationale of SR?
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Undergrad Light Speed: Consequences of Relativistic Speeds
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Graduate Common misconceptions of cosmological horizons and superluminal expansion
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Graduate General relativity and time dilation
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Graduate Length and time for a given metric
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Graduate Is There Any Scientific Evidence Supporting the Idea of Viewing the Future?
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Graduate Determinant g = g_{00} det |g_{ij}|
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Graduate Does Antigravity Have a Basis in Justifiable Physics?
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Special Relativity Day: Albert Einstein's 1905 Theory
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Graduate GR Background Independence: Indeterminate and Non-local?
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Graduate The Mystery of Gravity: Unraveling the Cause of the Fundamental Force
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Graduate The Completeness of the Kruskal Extension: A Flaw in the Black Hole Solution?
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Graduate Does the Velocity of Magnetic Field Effects Violate Maxwell's Equations?
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Graduate Gravity / equivalence principle
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Undergrad Light clock and teaching of special relativity
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Undergrad How Long Would Earth Lose Sun's Gravity? - Helical
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Graduate Einstein did not derive E =mc2 first
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Graduate Is the Terrell-Penrose Effect accurately depicted in these animations?
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Graduate Why Twins Feel Different Speeds on Opposite Carousels
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Graduate Gravitational time dilation due to one's own mass
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Graduate Is There a Limit to Temperature in Relativistic Thermodynamics?
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Graduate Does the Twins Paradox Always Hold True for Inertial and Non-Inertial Observers?
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Graduate How Does Relativistic Deceleration Affect Velocity Calculations in Space Travel?
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Undergrad Calculate Time Difference: Relativity Equation for Sun and Earth Masses
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Graduate How do you prove the relationship between electromagnetic and metric tensors?
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Graduate What Color Would a Light Beam Appear While Chasing It at 0.999c?
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Graduate Black holes and scientific fraud
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Graduate How Does a Light Clock Demonstrate Motion in Relativity?
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Graduate Clocks and Time Dilation in Relativity
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Graduate Isotropic and anisotropic propagation of light
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Undergrad Big Bang & Speed of Light: Explained
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Graduate Gravity in the expanding universe.
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Graduate World's Fastest DerivationS of the Lorentz Transformation?
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Relativity according to Dr. Wayne Dyer
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Graduate Is Cross-Posting Allowed on PF Forums?
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Graduate Is Time Slowing Down? - Examining the Possibility
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Graduate How to travel faster than light - why wont this work?
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Graduate Trying to understand gravitomagnetism
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Graduate In What Frame Is (t2 - t1)^2 Measured?
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High School Perception vs Reality: Why Does the Moon's Shadow Look Wrong?
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Graduate What evidences of relativity do you find the most compelling
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Graduate Another Twins Paradox question
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Undergrad Does light travel at different speeds?
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Graduate What is Lorentz' Ether? Lorentz' ether
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Undergrad Einstein energy versus thermodynamic energy
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Graduate Gravity, Mass, Dark Matter & Energy - Exploring Relationships
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Graduate Birkhoff's theorem with cosmological constant
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Graduate How Do Light Cones Behave Near a Black Hole's Event Horizon?
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High School Proper Physical Quantities: Understanding the Fundamentals
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Graduate Special Relativity Clock Challenge
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Graduate Interfering with Time: Light Waves Explained
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Graduate How Does Curved Spacetime Influence the Path of Light and Objects in Space?
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Graduate Can Light Curve Space-Time and Create a Gravity Well?
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Graduate Solving Spacetime: Parametrizing a Curve in 3D Euclidean Space
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Graduate Doppler & Gravitational Redshift: Non-Inertial Observer in SR?
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Graduate When and where will ship A turn around according to an observer on earth?
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Graduate Gravity - Integrating General Relativity with Gravitons
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Advertising very bad sites on relativity
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Graduate How Does Time Dilation Work and Can Someone Explain the Twin Paradox?
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Undergrad Why don't all massive objects collide?
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Graduate Is It Possible to Derive the Lorentz Transformations from a Simple Axiom?
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High School Why doesn't light go through walls then?
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Graduate The interaction between two electriferous particles
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Undergrad Discover the Science Behind Age Differences at the Equator vs. Poles
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Undergrad Special relativity - please can someone clear this up?
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Graduate If Time Is The Fourth Dimension
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Graduate What are the effects of higher derivatives in the slow-motion approach?
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Graduate Questions about Light: Speed & Gravity
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Undergrad Gamma Rays: Faster than Light?
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Graduate Can Two Airships Achieve Superluminal Speed with Elastic Material?
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Graduate Why Do You Travel Into The Future As You Approach The Speed Of Light?
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Graduate Conceptualizing higher dimensions
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Graduate Thermodynamic - conservation of energy/mass problem, I can't figure it out
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Graduate Virtually indestructible materials, say adamantium.
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Graduate Composition of Lorentz Transformations
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Graduate Why is a wire with a current not charged?
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Graduate Why Did Einstein Choose the Riemann Tensor for General Relativity?
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Undergrad Learning special relativity in my physics class
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Graduate Can Twisting a Rod Allow Faster-Than-Light Communication?
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Graduate Theoretical experiment on relativity
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Graduate Explaining EM, Weak & Strong Interactions in 4D Spacetime
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Undergrad Physics Q: Travel Faster than Light? E=MC^2?
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Graduate Calculating Time Travel & Wormhole Theories
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Graduate Gravity & Light: Bending the Laws of Physics
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Graduate Inertial Frames distinguished by proper times
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Graduate Mossbauer Effect & Photon/Gravity: How it Verifies Energy MGH
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Graduate What,s the energy of the gravitational field?
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Graduate Travel Faster Than Light: Theory & Experiments
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Graduate Why does light travel backwards in this experiment?
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Graduate Attempting to Understand Alcubierre
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