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 CTC on FLRW cosmological models
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Undergrad About the meaning of "expanding universe"
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Undergrad Spacetime topology of the Universe
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Undergrad Clock rate in hyperbolic space-time manifold
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Undergrad E=mc^2 and acceleration
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Undergrad [SR] light shot at an angle in a moving train
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Undergrad Relativistic Doppler effect and refraction
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Undergrad "Exploring Time Perception Across Different Regions of Space"
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Undergrad Black hole and coordinate time from the perspective of Alice outside
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Undergrad Field equation interpretation
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Undergrad Black hole formation and infinite redshift
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Undergrad Two-way light speed invariance
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Undergrad Are equations for spacetime intervals correct?
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Undergrad Is there a maximum relativistic acceleration?
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Undergrad Why is Rømer's light speed measurement not one-way?
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Undergrad Relativity of Simultaneity question (use Einstein synchronization)
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Undergrad How to correctly mark event B on the picture?
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Undergrad Non-Inertial Relativistic Dynamics
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Undergrad Chain of lights falling into a black hole
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Undergrad An alternative derivation of the equation of motion in General Relativity
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Undergrad Alive in one frame and dead relative to other?
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Undergrad You can't actually enter a blackhole?
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Undergrad Relating orthogonal accelerations in special relativity
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Undergrad Angles between 4-vectors in special relativity?
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Undergrad Confusion about Cauchy surfaces
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Undergrad Lecture on Newtonian spacetime
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Undergrad Path independence redshift photon
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Undergrad Charged particles and electromagnetic waves in transparent media
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Undergrad Lasting effects of Mass and Distance Dilation
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Undergrad The Faraday disk in the context of the theory of relativity
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Undergrad 2 objects of enormous volume each in relative motion very close to c
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Undergrad When Does a Train Passenger Experience Complete Darkness in a Tunnel?
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Undergrad Matrix form of metric component transformation?
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Undergrad Energy and reference frames
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Undergrad GR as Gauge Theory
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Undergrad Are Space and Time Just an Illusion in General Relativity?
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Undergrad Determinism & General Relativity: A Physics Primer
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Undergrad Transformation Riemann tensor to an accelerating frame
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Undergrad SR: GA Multivector vs. Tensor notation, Maxwell's equations
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Undergrad Time dilation for two observers in relative motion
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Undergrad Electromagnetic field in different reference frames
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Undergrad Time dilation and the human body
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Undergrad If electrons can be pointlike particles, why can't black holes?
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Undergrad Definition of tangent vector to a timelike geodesic
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Undergrad Tensor field from a covariant derivative operator (affine connection)
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Undergrad Can anyone clarify the relativistic twin paradox for me?
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Undergrad Why does laser beam hit the same target when fired?
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Undergrad Lorentz transformation on mode functions
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Undergrad A six-vector is related to a 2nd rank antisymmetric tensor in Minkowski Spacetime?
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Undergrad Is the weak field limit valid for the Brans-Dicke scalar field?
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Undergrad Robert B. Laughlin (Physics Nobel Laureate, Stanford University)
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Undergrad What about the Big Ben Paradox?
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Undergrad Using 4-derivative
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Undergrad A question about the speed of light and electromagnetism
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Undergrad The Lorentz factor gamma and proper time
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Undergrad Can the intersection point of two light beams exceed the speed of light?
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Undergrad Need opinions on Youtube video: "From constant moving charge to SR"
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Undergrad A thought experiment on simultaneity
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Undergrad Speed of Light & Bullet
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Undergrad Question about length contraction and repulsive force
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Undergrad A matter of time dilation: how much time has actually passed?
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Undergrad Speed of light one more time
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Undergrad Principal and Gaussian curvature of the FRW metric
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Undergrad Physical Difference Between Co- and Contravariant Vectors
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Undergrad Co- and Contravariance
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Undergrad Determining a stationary point of reference to base all absolute motion
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Undergrad Relativity and a Mirror
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Undergrad Validity of Birkhoff's theorem in flat Minkowski spacetime
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Undergrad Follow-up on Index notation for inverse Lorentz transform
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Undergrad Canonical energy momentum tensor: Quick question
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Undergrad Embedding Diagram of Weyl Metric in ##R^3##
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Undergrad Higgs Field & GR: Are They Related or Not?
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Undergrad How does an arbitrary choice of the origin affect real observations?
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Undergrad Asteroid hits static black hole
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Undergrad Does everything move at the speed of light?
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Undergrad How Can Tensors Be Evaluated to Scalars?
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Undergrad Researchers calculate how much faster time passes on the Moon
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Undergrad Proof of Lorentz transformation
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Undergrad Questions about a thought experiment involving time dilation
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Undergrad Is Measuring the One-Way Speed of Light Possible Near a Black Hole?
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Undergrad Black hole and singularity
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Undergrad General relativity question: Gravity clock
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Undergrad Formulating the Poincare group and its double cover
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Undergrad Geodesics in Schwarzschild: Reparametrizing the Equations
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Undergrad On the possibility of exploding a black hole
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Undergrad Basic questions about E=mc^2 energy conversion
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Undergrad Do black holes have magnetic fields?
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Undergrad SR-time dilation vs GR-time dilation on rotating Earth
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Undergrad Affine parameter and non-geodesic null curves
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Undergrad Where is the mistake in this derivation of Length Contraction?
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Undergrad Special relativity & Synchronization of clocks
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Undergrad Frame fields and congruences of worldlines
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Undergrad Lorentz invariance of the 4-momentum
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Undergrad The uniqueness of D=4
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Undergrad Why do objects follow a geodesic?
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Undergrad Increase in surface charge density in different frames of reference
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Undergrad Line element in Kerr coordinates at singularity
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Undergrad Trying to Fully Understand Mass Increase of Unstable Bonds
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Undergrad Help understanding proof of ds=ds' in Classical Theory of Fields
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Undergrad Constants of motion symmetric spacetimes
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