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.
Undergrad Flux of i-momentum: Is it Correct?
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Graduate Can Ricci Flow be Used in Lorentz Manifolds?
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High School Landau's Derivation of Lorentz Transformations: Questions Answered
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Undergrad Time Dilation, Length Contraction & Massive Bodies
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Undergrad Gravitational wave interactions and the equivalence principle
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High School Length Contraction in Accelerated Frame
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Undergrad Electromagnetic Potentials in Relativity: Retarded Potentials?
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High School Special case of relativistic velocity addition law
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Undergrad Lorentz transformation for 3 frames (2 dimensions)
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Undergrad Gravity as Curvature of Spacetime: Understanding Einstein's Theory
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Graduate NASA hypothetical engine w/ relativistic ions
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Undergrad Violations of Energy Conditions for Metric in Relativist's Toolkit
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Undergrad Connection between General Relativity & Chaos Theory?
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Undergrad Christoffel's symbols: symmetry in the two (lower) indices
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High School What Would You See Inside a Black Hole? | General Relativity
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High School Red-Shifted Light: Speed Less Than C?
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Undergrad Active Diffeomorphisms of Schwarzschild Metric
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Graduate Numerically Solving Scalar Propagation in Curved Spacetime
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High School Why is the speed of light limited?
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High School Understanding Spacetime Diagrams
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Undergrad Photon Speed Addition: Can it Be FTL?
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High School Train traveling near light speed
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Undergrad Does Moving a Wire Increase its Magnetic Field?
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Undergrad Energy-Momentum Tensor: How Much Do University Students Learn?
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Undergrad Can Lagrangian mechanics be applied to motion in an expanding universe
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Undergrad Why Stationary Masses Attract: Explaining GR Intuition
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Undergrad The Equivalence Principle as a Starting point of GR
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High School Relative Nature of Speed: Einstein and Orbits
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Undergrad How time dilation is a permanent change and length contraction not?
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Undergrad Time travel to the Andromeda Galaxy
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Undergrad Transformation of the Christoffel Symbols
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Undergrad Derivation of the conservation of total energy and momentum
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Undergrad Wiki definition of Fermi coordinates
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High School How Can Photons Contribute Mass to a Container?
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High School Does Gravitational Time Dilation Affect How We Measure Time on Earth?
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Undergrad What is the ambiguity surrounding coordinate differentials in Relativity?
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Undergrad Special relativity vs Lorentz invariance
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Undergrad Parallel Transport: Uses & Benefits
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Graduate Cooling of Identical Bodies in SR: A Peculiar Situation
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Undergrad Time Dilation: Relative to Medium or Vacuum?
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Undergrad Metric compatibility and covariant derivative
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Undergrad Derivation of an identity for ##\partial^2_t \int T^{00}(x^i x_i)^2d^3
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Insights Relativistic Treatment of the DC Conducting Straight Wire
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Undergrad Aberration of Light in Circular Motion: Does Distance Change?
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High School Schwarzschild radius of an object is smaller than Planck length
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Undergrad The solution of a nonlinear equation in Schutz's book page 211 2nd edition
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Undergrad ADM Formalism: Intro-to-Intermediate Explanation
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Undergrad Time Dilation, Mass-Energy Equivalence: Implications for Time Passage
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Undergrad Speed of Light Paradox: Neutron Star Rotation Rate
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High School The Strong Energy Condition in General Relativity
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Undergrad Observing a rotating body when approaching it at near light speed
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Undergrad Coordinate time between spatially separated events in Schwarzschild spacetime
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High School Why does matter always escape while antimatter falls into black holes?
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Undergrad Max Time Travel Date: Can We Enjoy Moments From the Past?
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Graduate Theoretical status of hypothesized Generic Objects of Dark Energy
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Undergrad Inertial Mass as Speedometer: Physics & Universe
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Undergrad How big are the non-mass parts of the stress-energy tensor?
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High School GR & Early Universe: Time Dilation & Light Speed
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Graduate Einstein Tensor and Stress Energy Tensor of Scalar Field
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Undergrad The Shape of Space: How Does It Move?
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Undergrad Get Standard Units Flux Multiply c^2: Perfect Fluid/Einstein's Dust
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Undergrad Invariants of the stress energy tensor
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Undergrad QFT of Gravitons in Minkowski Space vs GR
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Undergrad Light Speed Mirror Reflection: Can You See Yourself?
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High School Are Gravity and Magnetism Curving Space in Similar Ways?
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Undergrad Derivation of Riemann tensor's first order-equation
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Undergrad Covariant Derivative: 2nd Diff - My Question
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High School Relative Dead Stop in Deep Space
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Undergrad Godel metric in a cylindrical chart
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Undergrad Special Relativity: 2-D Collisions for Alice & Bob
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Undergrad Two rings rotating about a common center
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Undergrad Accel. in Spec. Relativity in 2-Dims: Point Test Mass
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High School Light & Gravity: Impact on Spacetime?
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Graduate Einstein and Spacetime: Debunking the Myth of Rejecting Curvature
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Undergrad Length Contraction & FTL Speeds: Are Lower Grades Faster?
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Undergrad Understanding Light from Black Holes
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Undergrad Lorentz transformation for 3 frames
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Undergrad How to See How Two Frames are Connected?
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Undergrad Playing music with Gravitational waves
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Undergrad Lie derivative of hypersurface basis vectors along geodesic congruence
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Undergrad Light pulse path, length and shape, when bouncing between two mirrors
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High School Relationship between mass and energy
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Undergrad Find CTCs in Kerr Metric: Visualizing Spacetime Geometry
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Undergrad Lorentz transformation of derivative and vector field
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Undergrad Light Momentum - Does it Make Sense or Not?
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Graduate Alcubierre Warp Drive: Intro Paper for GR Students
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Undergrad A "space elevator" extended to Neptune's orbit
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Undergrad Why Does the Angle Between Coordinate Axes in Different Frames Equal atan(v/c)?
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Undergrad Position of Particle in Special Relativity (A vs B)
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High School Julius Caesar Problem from a SpaceTime Physics book
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Undergrad Can we increase an object's gravitational force by adding energy?
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Undergrad Pullback of Vector Field in Relativity: Restrictions?
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Graduate Derive Radial Momentum Eq. in Kerr Geometry
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Undergrad Appearance of a Kerr black hole from above
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High School What happens to speed and velocity in a rotating frame of reference?
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High School Reference frame symmetry in Special Relativity
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Undergrad Energy Momentum Tensor Prerequisites: What Do I Need to Know?
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Undergrad Mechanical system with de Broglie-like features
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Graduate Relativistic Hoop w/ Constant Circumference: Solving Egan's Results
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Undergrad Special relativity question driving me crazy....
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