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.
Threads
Undergrad Accelaration & forces in different inertial referance frames
- arpon
- · Replies 5 ·
Graduate Why Does Time Not Slow in a G-Field?
- Agrasin
- · Replies 2 ·
Graduate The Schwarzschild Metric: Obtaining Equation M=Gm/c^2 & Newton Law at Infinity
- TimeRip496
- · Replies 3 ·
Graduate Does Time Contraction Change Substance?
- abrogard
- · Replies 52 ·
Graduate Time Dilation Explained by Stephen Hawking: 1 Day = 1 Year?
- Serious Max
- · Replies 1 ·
Graduate Einstein Field Equation: Understanding Curvature and Geodesic Equations
- TimeRip496
- · Replies 1 ·
Graduate Photons Travelling at Less than c in "free space"
- nitsuj
- · Replies 23 ·
Graduate Equivalence Principle: Feel Difference Between Situation A and B?
- haisydinh
- · Replies 14 ·
Graduate Interpretation of Relativity of Simultaneity
- lowerlowerhk
- · Replies 1 ·
Graduate Relative velocities In Space-Time Diagram
- Quarlep
- · Replies 18 ·
Graduate How to contract the christoffel symbol
- TimeRip496
- · Replies 8 ·
Graduate Killing Vectors conserved quantity along geodesic proof
- binbagsss
- · Replies 10 ·
Graduate Can a maximal charged black hole have "flavor" or weak hair?
- Larry Pendarvis
- · Replies 24 ·
Graduate A rock falling towards the center of earth according to GR
- Ott Rovgeisha
- · Replies 15 ·
Undergrad Understanding Cofactor & Adjugate Matrices
- TimeRip496
- · Replies 1 ·
Graduate Relativity Terminology: Lorentz Observer, Frame, Spacelike Vector
- Dixanadu
- · Replies 10 ·
Graduate Can mass and energy be converted into each other?
- T'Pau
- · Replies 5 ·
Graduate Complex Function & Spin Connection: What Changes?
- samuelphysics
- · Replies 1 ·
Undergrad Einsteins thoughts behind c2 in E=mc2
- Incyder
- · Replies 6 ·
Graduate Massless Particles: Force Bearing & Propagation Speeds
- geordief
- · Replies 2 ·
Undergrad Perception of time, relative and distant.
- x3RangeMerge
- · Replies 3 ·
Graduate Fast Intersection of Crafts: Tau Ceti-Sol Trip
- Chinspinner
- · Replies 2 ·
Graduate Non-Moving Wormhole & Moving Observer: Paradoxes?
- vemvare
- · Replies 3 ·
Undergrad Einstein theory on bending of space
- ronric
- · Replies 36 ·
Graduate Kerr metric and rotating stars
- luinthoron
- · Replies 17 ·
Graduate Horizontal Photon Vertical Lift Acceleration
- jk22
- · Replies 7 ·
Graduate What Are the Algebraic Mysteries in Energy-Momentum-Mass Relations?
- Bazinga101
- · Replies 3 ·
Graduate Do free-falling objects also curve spacetime?
- smoothoperator
- · Replies 19 ·
Graduate Lightning Bolts / Relativity of Simultaneity
- MattRob
- · Replies 2 ·
Graduate Can clocks ticking at different rates be synchronized?
- smoothoperator
- · Replies 26 ·
Graduate The reality of Relative Velocities in Special Relativity
- Quarlep
- · Replies 11 ·
Graduate Relative Magnetic Fields: What is Reality?
- abrogard
- · Replies 2 ·
Undergrad Learning to Simplify the Curvature Tensor
- TimeRip496
- · Replies 3 ·
Graduate Flaw in Traveling to Destination Several Thousand Light Years Away
- Constantine
- · Replies 6 ·
Graduate Time in QM vs SR: Energy, Frequency & Motion
- TEFLing
- · Replies 8 ·
Graduate Another flashlight from spaceship question
- dilletante
- · Replies 6 ·
Graduate Curvature of Space-Time: Why is Covariant Derivative Nonzero?
- TimeRip496
- · Replies 7 ·
Graduate Question about rotating reference frames
- Amaterasu21
- · Replies 10 ·
Graduate Christoffel Connection & Curvature in GR: Understanding Singularities
- binbagsss
- · Replies 7 ·
Graduate Schwarzschild Light Anisotropy: Explained
- smoothoperator
- · Replies 7 ·
Graduate Time Dilation and Relative Time
- name123
- · Replies 57 ·
Graduate Gravitational Theories: Relativity & Beyond
- WhiskeyRenegade
- · Replies 1 ·
Graduate Deriving Relativistic Pressure of Ideal Gas: Why Am I Getting v/c?
- Jeremy Wittkopp
- · Replies 3 ·
Graduate What is the formula for calculating relative velocities in Special Relativity?
- Quarlep
- · Replies 6 ·
Graduate Covariant Derivative: Understanding Motivation Quickly
- binbagsss
- · Replies 3 ·
Graduate Levi-Civita Connection & Riemannian Geometry for GR
- binbagsss
- · Replies 6 ·
Graduate Deriving Gravitational Red Shift: Questions & Answers
- 21joanna12
- · Replies 6 ·
Undergrad Big Bang Background Radiation: Questions Answered
- JKFlyguy
- · Replies 2 ·
Graduate How Does Gravitational Time Dilation Affect Our Understanding of Black Holes?
- wolverwookie
- · Replies 2 ·
Graduate Event horizon in different coordinate systems
- smoothoperator
- · Replies 51 ·
Graduate Old article on Hawking radiation
- stevebd1
- · Replies 1 ·
Graduate Geodesic equation proof confusing me
- Superposed_Cat
- · Replies 1 ·
Graduate GR: Accelerated Observer's Local Speed of Light
- smoothoperator
- · Replies 5 ·
Undergrad Light Direction in Different Frames: Resnick & Halliday
- Gireesh
- · Replies 5 ·
Graduate Dynamical Spacetime: Time or Space Dependent?
- kau
- · Replies 3 ·
Graduate Alcubierre Warp Bubbles: Observation & Travel Questions
- KeithLucas
- · Replies 2 ·
Graduate Constructing solutions to Einstein Field Equation
- NotASmurf
- · Replies 2 ·
Graduate Meaning of tensor invariant, covariant differentiation
- binbagsss
- · Replies 7 ·
Graduate Why does time appear to slow down on a moving spaceship?
- leonid.ge
- · Replies 6 ·
Black Holes, Time Warps & "Interstellar": A Review
- aabottom
- · Replies 1 ·
Graduate Expression for the line element ds^2
- TimeRip496
- · Replies 26 ·
Graduate Can Wormholes Enable Time Travel Without Space Displacement?
- Starlover
- · Replies 17 ·
Graduate Time Travel to the Past: CTC or Wormhole?
- novella
- · Replies 2 ·
Graduate Coord. Transf.: V'μ from (dy/dx)*Vν
- TimeRip496
- · Replies 2 ·
Graduate Transform Coordinate System: Curvy to Euclidean Space
- TimeRip496
- · Replies 1 ·
Graduate Need for SR to Explain Magnetic Forces?
- pantheid
- · Replies 3 ·
Graduate Understanding Tensors for General Relativity: A Comprehensive Guide
- BiGyElLoWhAt
- · Replies 2 ·
Graduate Understanding Well-Defined Tensor on Manifold: Basic Concepts
- binbagsss
- · Replies 2 ·
Graduate Metric Tensor: What is it and how does it relate to Riemannian geometry?
- CaraKboom
- · Replies 57 ·
Graduate When will neutronization occur in the black hole formation process?
- bcrelling
- · Replies 55 ·
Graduate Index notation tensors quick question
- binbagsss
- · Replies 4 ·
Graduate Spacetime Interval & Metric: Equivalent?
- jmatt
- · Replies 5 ·
Graduate A GR question about null surfaces, vectors and coordinates
- qtm912
- · Replies 7 ·
Undergrad Understanding Kronecker Delta: Why & How?
- TimeRip496
- · Replies 6 ·
Graduate Time dilation paradox with three reference frames at 0.8c
- Palpatine
- · Replies 1 ·
Graduate Relativistic Gravity: Is It Weaker or Stronger? | Thought Experiment
- DiracPool
- · Replies 28 ·
Undergrad Is It Possible to Determine Motion in Relativity?
- Gireesh
- · Replies 7 ·
Undergrad Black Holes: Questions from a Non-Scientist
- orionis
- · Replies 4 ·
Graduate Lorentz Transformation: Matrix Relation, Metric Tensor
- TimeRip496
- · Replies 1 ·
Graduate General relativity vs special relativity
- Starlover
- · Replies 4 ·
Undergrad The Twins Paradox: Understanding the Slow-Motion Effect
- Starlover
- · Replies 2 ·
Graduate Time Travel: Why Only to CTC's Creation?
- Starlover
- · Replies 1 ·
Graduate Topology of Black Holes: Possible Topologies & Examples
- martinbn
- · Replies 5 ·
Graduate Difference Between Covariant & Contravariant Vectors Explained
- LeonPierreX
- · Replies 2 ·
Graduate Einstein's Formulation of Tensor Equation: Was He Lucky?
- barong
- · Replies 1 ·
Graduate Light Bulb Moving at Half the Speed of Light: Effects on Light Halo and Length
- dragoneyes001
- · Replies 18 ·
Graduate Infinitesimal Mass & Distant Space: GR Effects
- Blayde Keel
- · Replies 4 ·
Graduate How does Maxwell equation suggest that the speed of light is the same
- kakolukia786
- · Replies 30 ·
Graduate The Light Clock Problem: Resolving Observer Discrepancies
- Quarlep
- · Replies 3 ·
Graduate Understanding Einstein Field Equation & Metric Tensor
- TimeRip496
- · Replies 10 ·
Graduate Can gravity cause an object to reach the speed of light?
- Peter Frame
- · Replies 2 ·
Graduate Light Exceeds Its Own Speed Limit?
- Euclid Areti
- · Replies 7 ·
Undergrad Special relativity and the speed of light constant
- TimeRip496
- · Replies 24 ·
Graduate Time and Light: A Curious Link
- Keystone
- · Replies 11 ·
Undergrad If photons have no mass,why would black holes attract light?
- Murtuza Tipu
- · Replies 4 ·
Graduate Equivalence of Matter Energy and Space-Time?
- WCOLtd
- · Replies 12 ·
Graduate Is a Pseudo-Riemann Metric Intrinsic to General Relativity?
- CSnowden
- · Replies 20 ·
Graduate Deriving Equation 4.8 in Special Relativity: Tips and Tricks
- unscientific
- · Replies 13 ·
Undergrad Time Dilation at Near Light Speed: Answers to a Thought Exercise
- Hollygrove
- · Replies 4 ·
Graduate Black Holes & Time Travel: Wild Speculation
- John d Marano
- · Replies 4 ·