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 dilation in biological processes
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Graduate Is a zero Ricci scalar the defining characteristic of a 'flat' spacetime?
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Graduate I don't understand why your clock slows down
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Graduate Gravity and Time Dilation: Length Contraction and Mass Inflation?
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Graduate Do magnetic fields affect the speed of light in the Pound-Rebka experiment?
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Graduate Gravitational Field & Light Speed: Is Time a Scalar Quantity?
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Graduate Generality of theta=pi/2 in Schwarzchild
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Graduate Does the Universe spin (does it have an angular momentum)?
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Graduate Relativity vs Quantum Mechanics
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Graduate Energy in Schwarzschild geometry
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Graduate Mach's Principle and the Accelerating Universe
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Graduate BRS: The FRW Dust with E^3 Hyperslices - Discussion
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Graduate Gravity: Does it Really Exist? Physics & Math Explained
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Graduate Understanding Relativity: The Concept of Time and the Speed of Light Explained
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Graduate Albert Einstein's Theory of Relativity
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Graduate Do not believe this letter on gravitational radiation
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Graduate Stress-energy tensor diagonalization
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Graduate Poincaré Gauge Theory: Facts, Popularity, Flaws & Experiments
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Undergrad Understanding Mass-Energy Equivalence to Fdx and dm in E=mc^2
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Graduate What Are the Timelike and Null Coordinates Used in the Schwarzschild Metric?
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Graduate Gravity's Restoring Force - Explained
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Graduate Are Lorentz and Poincare insufficiently credited for special relativity?
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Undergrad Why aren't you accelerating when you fall
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Graduate Does the presence of mass affect the curvature and growth of space-time?
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Graduate Unraveling the Mystery of Gravity: The Role of Mass in Space-Time Distortion
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Undergrad Is there such a thing as the Null Speed in the concept of motion and relativity?
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Graduate Frame of reference of any observer
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Undergrad Do gravitational waves have different frequencies?
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Graduate Example of Unsymmetrical Metric: 2D Solutions
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Undergrad Is Einstein's Theory of Relativity Flawed?
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Graduate Energy & Momentum: The Effects of Photons on Stars
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Graduate Understanding GR Better: Metric Spaces & Differential Geometry Courses
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Graduate Understand 'One Form' Vector & Covariant - Relativity Demystified
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Graduate Do all observers agree on gravitational mass?
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Undergrad Understanding Gravity: Properties & Effects
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Graduate Is Relativistic Mass Consistent in Inelastic Collisions?
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Graduate How long does a ray of light travel for based on ITS time scale
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Graduate Is the Proof of E=mc² Valid for Accelerating Objects in Special Relativity?
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Graduate Green's function for Klein-Gordno equation in curved spacetime
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Graduate Correction term to Newtons gravitation law
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Graduate What kind of 'rotation' is the Gaililean transformation?
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Graduate Can Total Energy Be Less Than Rest Energy in Special Relativity?
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Graduate Is Proper Time Contraction Valid for Accelerated Watches?
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Undergrad Relative Velocity of two particles
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Graduate Is the distance relative also?
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Graduate Distnace between points and isometric mapping
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Graduate Does mass increase in SR mean higher gravity in GR?
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Undergrad If you were out in space, motionless
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Graduate Can a Slower Spacecraft Overtake a Faster One in Relativistic Travel?
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Graduate Why is speed of light constant?
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Graduate Would it Feel as if Time Stopped If I Became Light?
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Undergrad Time Dilation: How Can a Watch Tick Slower?
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Graduate Does time obey the inverse square law?
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Graduate Extrinsic properties of the curved space
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Graduate Lorentz transformation as a higher dimensional rotation
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Graduate Lorentz boost and equivalence with 3d hyperbolic rotations
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Graduate Spacetime proven or is the Graviton still alive?
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Undergrad What's it like if I were standing on earth's axis?
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Graduate Spaceship flying towards earth at relativistic speeds?
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Graduate Membrane Theory: Questions & Ideas Explored
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High School What is E=mc² What is it used for?
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Undergrad Scenario allowing a signal to travel at superluminous speeds?
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Graduate Gravity and acceleration near to the speed of light
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High School Sorry if this is too basic but we've all got to start somewhere
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Undergrad What exactly is Einstein's famous E = MC^2
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Graduate What is the equation that determines the speed of light "c"?
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Graduate Why do these two terms cancel in the Riemann-Christoffel tensor?
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High School General Relativity & Newton's Gravity - the fit?
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Graduate What does observer B see in the train thought experiment?
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Graduate Lorentz Transformation: R_2=R_1^{-1}?
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Graduate Cosmological expansion question
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Graduate BRS: Using Maxima for gtr computations
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High School How to describe the 4th dimension?
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Graduate Can Time Move Faster in Low Gravity Fields?
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Graduate Divergence of curvature scalars * metric
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Graduate Normalization of 4-velocity in general relativity
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Graduate Why no privlidged reference frame?
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Graduate Diagonalizing Rank 2 Symmetric Tensors in 4D Spacetime
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Graduate Partial derivatives as basis vectors?
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Graduate Why hyperbolic geometry in spacetime if it is flat?
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Graduate Mercury Precession & GR Calculation Impact
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Graduate Wave equation and Galilean Transformation
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Undergrad Why is E=pc with Light's Zero Rest Mass?
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Graduate Is a Curve Timelike, Spacelike, or Null?
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High School What Does Relative Really Mean and How Is It Used?
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Graduate What is the Composition of Spacetime?
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Graduate Other universes vs Hawking radiation
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Graduate Lorentz Boost Help: Why Use Hyperbolic Functions?
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Graduate Warp Space Travel: Is the Light Always Ahead?
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Graduate Gravity & Charge: Explained by Maxwell's Eqs?
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Undergrad Do All Wavelengths of the EM Spectrum Have Photons?
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Graduate Is Simultaneity Absolute or Relative in Einstein's Theory of Relativity?
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Graduate Gravitational redshift equation
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Graduate Energy into matter conversion possible?
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Graduate Testing the Equivalence Principle with Spectral Anisotropies
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Graduate Unifying Gravity and Electromagnetism: Refuting Einstein's Attempts
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Graduate General Relativity Revisited (What if gravity actully is a force?)
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Graduate Accelerating frames and black holes
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High School Explaining Time Dilation: A Simple Guide
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Graduate Diffeomorphism invariance of metric determinant
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