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 Inquiry about kinetic force in STR
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Graduate Covariant derivative of stress-energy tensor
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Graduate What is a Rest Frame and How Does it Relate to Photons and the Speed of Light?
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Graduate Question about equivalence principle
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Undergrad CONCERN about relativity, need a quick answer
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Graduate Is the speed of light constant
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Undergrad Why is speed of light 299 792 458 m / s
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Graduate Newbie question - Conceptualization of time dilation from matter's perspective
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Graduate The Curvature of Space and Acceleration Confusion
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Graduate Is energy conserved in cosmology according to the laws of thermodynamics?
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Graduate What Would Happen if We Travel at the Speed of Light?
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High School I have a couple questions on gravity
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Graduate A problem in general relativity
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Graduate How Does Time Dilation and Lorentz Contraction Fit Within SR Framework?
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Graduate Proving M_{0i} = 0 in Special Relativity
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Graduate Can you actually turn if you are travelling at c?
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Graduate What is a Space Structure in relativity?
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Graduate Covariant derivative of riemann tensor
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Graduate Accelerating to speed of light
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Graduate Question from the FAQ on Rest Frame of a Photon
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Graduate Light speed barrier / closing speed
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Graduate Why is the time dimension different from the 3 space dimensions
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Graduate Elementary questions about connections.
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Graduate Can more than one photon participate in pair-production?
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Undergrad How does gravity affect the passage of time?
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Graduate Gravitational Waves, Photons & the Uncertainty Principle
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Undergrad Composition of 2 Boosts in Special Relativity
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Graduate Time dilation in an electromagnetic potential
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Graduate Is the Speed of Light Truly Unattainable in Relativity?
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Undergrad Inelastic collision problem/ unequal masses.
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Graduate Interaction between charges in motion
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Graduate Does Time Dilation Affect Distance Measurements in Special Relativity?
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Graduate Frame Dragging & Black Holes: CTC Possibility?
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Undergrad Is the Twin Paradox Truly Unsolvable?
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Graduate Who’s spin in the Einstein-Cartan theory? Source’s or test particle's?
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Graduate Is Time Truly a Dimension or Something Else Entirely?
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Graduate Hamiltonian Analysis in Curved Spacetime: Is it Possible in General Relativity?
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Undergrad A problem with time dilation help?
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Graduate What is the relationship between space-time density and gravity?
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Graduate What if a black hole had a negative size ?
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Undergrad Hydrogen atom to 90% the speed of light
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Graduate *May be a stupid question* Does Oxygen/Nitrogen bend space-time?
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Graduate Is Spacetime Always Flat in Regions Without Mass?
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Undergrad Confusion regarding Time dilation ?
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Graduate Torsion in GR and Einstein-Cartan theory
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Graduate Bacteria Space Travel: Does Speed Affect Cell Division?
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Graduate How is twin paradox resolved in case of no/zero acceleration?
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Graduate Relativity Explained Via Movement, Not Time
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High School Gravity & Mass: Question about Affecting Something with No Mass
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Graduate What is the relationship between relativistic currents and Ohm's Law?
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Graduate Open and Closed Models in Cosmology
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Graduate Is Center-of-Mass Supraliminal?
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Graduate Relativistic Momentum: Is It a Vector in Relativistic Energy?
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Graduate How can I access to the following reference?
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Graduate Why does action have to be invariant?
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Graduate Gravity's Impact on Oxygen and Particle Movement: A Scientific Inquiry
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Graduate Issues with predicting Mercury's Orbit
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Graduate Conservation of energy in gravitational red shift
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Graduate Interchangeability of time and space
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Graduate Postulate of SR re speed of light
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Graduate What is the concept of four velocity and four force in special relativity?
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Undergrad Our 'Background' Speed and How it Fits with Time Dilation
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Graduate How is gravity described mathematically in general relativity?
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Graduate Understanding Proper Time and Arc-Length in GR Geodesic Curves
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Graduate Time Dilation Concept Confusion
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Graduate Question about time in Lorentz Tranformation
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Graduate Escaping the Schwarzchild Radius
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Graduate Studying Relativity: Speed Limit of c in All Inertial Frames?
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Graduate Can Equivalence Principle Be Violated?
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Undergrad Speed of light in non inertial frames
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Graduate Relativity & Light: Explaining an Observation Phenomenon
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Graduate In <Cosmology> written by Weinberg, in page 109
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Graduate Is length contraction an actual occurrence or merely an optical illusion?
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Graduate Whose Clock Wins in the Alice and Bob Time Dilation Paradox?
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Graduate Absolute Velocity of the Earth?
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Graduate Is Time Subjective or Objective in Spacetime?
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Graduate Understanding Space Distortion in General Relativity
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Einstein's The Field Equations of Gravitation Paper
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Graduate Covariant Derivative: Understanding $\partial_i e_j=\Gamma^{k}_{ij} e_k$
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Undergrad Is the speed of expansion of the universe faster than light?
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Graduate Laypersons problems understanding Black Holes
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Graduate What is the mathematical explanation behind red/blue shift caused by gravity?
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Graduate Time-Invariant Space: Metric ds^2 and Coordinates
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Graduate Help Me Reconcile This Thought Experiment | 65 Characters
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Graduate How can we test space-time for pseudo-Riemannian-ness?
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Graduate Does time stands still at c? And is room a point then?
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Graduate Are there any similarities between GR tensorial
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Undergrad Is Faster than Light Time Travel Possible?
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Graduate Question on Time Dilation Experiment
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Undergrad Speed of Gravity the Same in All Reference Frames?
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Graduate Gravitational Time Dilation - Is my head older than my feet?
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Undergrad Origins of the idea of a tachyon? (and a greeting)
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Undergrad Thoughts travelling faster than c
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Graduate Which Clock Slows Down with Time Dilation?
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Graduate Gradient of a tensor in cylindrical coordinates
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Graduate Does the expansion of Space require continuous energy?
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Graduate Polarization states via relativistic effect
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Graduate Where is potential energy in relativistic formula of energy?
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Graduate Can Electrons Overcome Gravity in a Black Hole?
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Graduate Gravity: A Matter of Spacetime Compression?
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