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 Challenging the Speed of Light: The Curious Case of Opposing Photons
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Graduate Understanding Time Dilation in Einstein's Special Theory of Relativity
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Graduate A question about time dialation
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Graduate Antisymmetrized tensor product
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Graduate Gravity Probe-B: Results & General Relativity
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Graduate Expressing second and its derivatives in terms of seven SI base units
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Graduate Light's Instantaneous Wordline: Is Time Really Zero?
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Graduate Twin paradox again (yes again)
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Graduate What Are the Implications of Time Dilation on a Photon’s Speed and Perception?
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High School What is the first result on Gravity Probe B?
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Graduate Explain Independent Continuum: Einstein's Theory
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Graduate What is the mass of a photon and why does it have a mass?
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Graduate Question on Relativistic Doppler Shift
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Graduate Why is Planck time measured differently from other dimensions?
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Graduate Velocity Addition in MG and Light Scenarios
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Graduate The Nature of Time: Should It Be Considered a 4th Dimension?
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Graduate Is There an Absolute Rest Frame in a 2D Universe?
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Looking for a relativity movie
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Graduate Metric of supermassive black holes
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Graduate How Do CMB and Redshift Support Universe Expansion?
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Graduate A scientist’s transmitter emits a wavelength
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A question about a thought experiment in space
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Undergrad Understanding the Impact of Mood on Perception
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Undergrad What is Einstein's thought experiment about special relativity?
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Graduate Abraham Zelmanov's Chronometric Invariants
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Graduate Could Time Dilation Make Us Age Differently on Other Planets?
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Graduate Are There PDEs in Special Relativity?
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Graduate Some Inertial Frames may br more Equivalnet than Others
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Graduate Understanding Relativity: Increasing Speed
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Graduate Two Body Problem: Exact Solutions?
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Undergrad I Need the explaination of The image of formation of black hole
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High School If I swing my arm, it can emit gravitational waves?
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Undergrad Transforming Kinetic Energy: A Geometric Approach
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Undergrad Twin Paradox Theory: Explained for 9th Graders
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Graduate Black hole entropy as a Noether Charge
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Graduate Proving invariance of scalar product
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Graduate Implications of geodesiacs(philosophical)
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Graduate D'Alembertian question again (sorry)
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Graduate Questions about the speed of light.
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Graduate Question about Mass(special relativity)
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Graduate Understanding the Detonator Paradox: A Relativity-Based Explanation
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Graduate Confused by D'alembertian operator in EM
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Graduate What is the material that allows transverse but not longitudinal waves?
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Undergrad Twin #1 is calling twin #2 in mid flight on instant-stellar phone
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Graduate Metric versus Tetrad formulation of relativity
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Graduate What is the Twin Paradox in General Relativity?
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Undergrad Grasping Special Relativity: Concept Understanding for 17yo
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Undergrad Starting to learn about General and special relativity
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Graduate Double Special Relativity (DSR) fake or real?
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Graduate Probably dumb question. problem understanding formula
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Undergrad Is there a way to intuitively understand proper time in special relativity?
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Graduate The physical nature of spacetime
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Graduate Doppler shift formula and the assumptions behind it
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Graduate Is the first postulate necessary?
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Graduate The Relativistic Mass-Energy Relationship
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Graduate E=mc2 Energy converts to matter
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Undergrad Time dilation- V relative to what?
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Graduate A question about constant acceleration close to the speed of light
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Graduate Einstein's Field Equation Stress-Energy
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Graduate Geodesic Deviation: Deriving Formula with Schtuz's Book
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Graduate Is Simultaneity Absolute in Einstein's Theory of Relativity?
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Graduate Inertial Frame R: Persisting Relationships of Particles' Positions & Velocities
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Graduate Is this the fabric of the universe?
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Graduate If a charged particle is free falling in the gravitational field-
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Graduate What is the perception of mass compression during relative time in acceleration?
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Graduate Invariance of uxw (velocityxphase velocity)
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Graduate Linear algebra and tensors in GR
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Visser: Lorentzian wormholes. From Einstein to Hawking 1996
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Undergrad A complete course in relativity.
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Graduate Gravitational radiation reaction
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Graduate Simultaneity, contraction and interval.
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Graduate Earth-Based Gravity Wave Detectors: Exist, Effectiveness, Detection & Setup
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Graduate Relative No-emission Propulsion
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Undergrad Principle of Relativity violation
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Graduate How Can We Determine If Two Light Beams Are Emitted Simultaneously?
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Graduate Location of new mass when added to grav system
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Graduate Calculating Light Bending by Gravity: Can You Teach Me?
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Graduate Whether a person will die or not is relative
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High School Uncovering the Mystery of Photons, Mass, and Gravity for Beginners
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Undergrad Relativity Question: Length Contraction of Moving Boxes
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Graduate Does Gravity Instantaneously Disappear When a Massive Object Vanishes?
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Undergrad Does Weight Change with Reference Frame? A Question Explored
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Graduate Does the Gravitational Field Have Mass?
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Graduate Lorentz-Transformation and time
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Graduate Is a Photon a Point or an Energy?
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Graduate Why C in Vacuum? Time Dilation Formula Explained
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Graduate Link btw manifolds and space-time
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Graduate How Would Headlights Behave If Your Car Traveled Faster Than Light?
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Graduate Twin Paradox in 3-sphere (S^3)
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Graduate What Does It Mean When We Say Spacetime Is Curved?
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Graduate What Does \nabla_{[a}F_{bc]} Mean? Notation Question Answered!
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Graduate Questions about kinetic energy and gravitation
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Graduate Time elapsed for watch with crystal normal or parallel to g
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Graduate Concept of the constant speed of light
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High School The Speed of Light: If My Arms Were 10 Light Years Long
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Undergrad A simple observation regarding the equivalence of acceleration and gravity
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Graduate Photons in the stationary wave?
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Graduate Speed of Light Sucked into Black Hole
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Undergrad Experiencing time faster rathe than slower
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Graduate Is Time a Vector, Scalar, or Something Else Entirely?
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