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
Graduate Initial Data for General Relativity: EFE
- HomogenousCow
- · Replies 1 ·
Undergrad How do Gravity and Acceleration affect Clocks?
- cjackson
- · Replies 1 ·
Graduate Why don't two light beams going opposite directions add to 2c?
- wilders
- · Replies 1 ·
Graduate Bianchi identity with F^ab F^cd
- JustinLevy
- · Replies 12 ·
Graduate Huggins Displacement Theory and Retrocausality
- johne1618
- · Replies 1 ·
Graduate Explaining why the traveling twin ages less without using the metric
- bcrowell
- · Replies 20 ·
Graduate Can Particles Travel Backwards in Time if They Exceed the Speed of Light?
- Salamon
- · Replies 7 ·
Graduate How does magnetic moment transform due to relativity?
- idea2000
- · Replies 2 ·
Graduate Derivation of formula for time dilation
- wpan
- · Replies 11 ·
Graduate XY Plane with Z as Time: Big Bang?
- sloughter
- · Replies 4 ·
Graduate Transition from Flat Minkowski to GR
- clerk
- · Replies 23 ·
Graduate SR and synchronization of clocks
- ShayanJ
- · Replies 7 ·
Graduate Understanding Stress Tensor in MTW Ex. 5.4
- TerryW
- · Replies 2 ·
Graduate Velocity Addition: Solving Minkowski Space with Metric Techniques
- welcomeblack
- · Replies 6 ·
Graduate Proper Time in Higher-Dim. Gravity: GR to HD
- center o bass
- · Replies 1 ·
Graduate Can Gravity Fields really cause Time-Dilation-Effects inside of them?
- ghostpy
- · Replies 14 ·
Graduate Is acceleration the same as gravitational time dilation?
- Buckethead
- · Replies 19 ·
Graduate Transformations in curved spacetime?
- wpan
- · Replies 2 ·
Graduate Energy for moving mass up a centrifugal gravity barrier
- Sunfire
- · Replies 11 ·
Graduate Black Hole Information Paradox and Alcubierre Warp Drives
- O10infinity
- · Replies 3 ·
Graduate Perception and inertial frames
- johnny_bohnny
- · Replies 7 ·
Graduate Gravity as a force and as a curvature
- shounakbhatta
- · Replies 55 ·
Graduate Contravariant and covariant indices
- spookyfish
- · Replies 2 ·
Graduate Can the Warp Drive Go Faster Than Light?
- sshai45
- · Replies 2 ·
Graduate Is energy and mass extraction possible within the Kerr Black Hole Ergosphere?
- Philosophaie
- · Replies 2 ·
Graduate Trying to understand time dilation better
- rede96
- · Replies 35 ·
Graduate Understanding Ultrarelativistic Speeds and Their Boundaries
- MathematicalPhysicist
- · Replies 8 ·
Graduate How are non-inertial reference frames treated in general relativity?
- GarageDweller
- · Replies 1 ·
Graduate Stress-energy tensor explicitly in terms of the metric tensor
- CarlosMarti12
- · Replies 2 ·
Graduate Track of the light in a moving light clock.
- rajeshmarndi
- · Replies 28 ·
Graduate Continuity equation (charge vs matter) in SR
- center o bass
- · Replies 15 ·
Graduate Free falling into a black hole that evaporates by Hawking Radiation
- kochanskij
- · Replies 37 ·
Graduate What Are the Effects of Light Speed in Different Reference Frames?
- ocset
- · Replies 5 ·
Graduate The definition of synchronized clocks
- WannabeNewton
- · Replies 14 ·
Graduate The rotating disk of Albert Einstein
- Nana Dutchou
- · Replies 54 ·
Graduate Photons Trapped on Expanding Event Horizons
- tom.stoer
- · Replies 3 ·
Graduate A simple problem of conservation of momentum
- epovo
- · Replies 2 ·
Graduate 2013 edits to the sci.physics.faq Rotating Rigid Disk in Relativity
- pervect
- · Replies 15 ·
Graduate Confusion about time dilation and length contraction
- scinoob
- · Replies 12 ·
Graduate Can You Travel Faster Than Light While Running on a Train?
- cappsie
- · Replies 4 ·
Undergrad Is Gravity the only force that affects time?
- ChromeBit
- · Replies 7 ·
High School Can Humans Really Time Travel?
- sheldonrocks97
- · Replies 6 ·
Undergrad Why Does Light Fall Into a Black Hole?
- mra20x
- · Replies 3 ·
Graduate Is Spacetime a Field in General Relativity?
- brianhurren
- · Replies 5 ·
Undergrad Does gravity affect the speed of light on Jupiter ?
- jacob.
- · Replies 15 ·
Graduate Solving Newtonian Tensor from A. Zee's EGR Book
- Chet_M
- · Replies 4 ·
Graduate Is there an absolute reality in the universe, independent of observation?
- morningstar
- · Replies 6 ·
Graduate Calculating Absolute Velocity at 50% the Speed of Light
- ThinkThrice
- · Replies 6 ·
Graduate Can different time-slices of an object interact?
- gabeeisenstei
- · Replies 19 ·
Graduate Klein bottle in 4d- Questions/ Discussion
- Matt-er
- · Replies 2 ·
Graduate Is Space-Time Symmetrical or Asymmetrical?
- japplepie
- · Replies 8 ·
Graduate The invariant momentum-space volume element?
- pellman
- · Replies 2 ·
Graduate Minkowski Metric and Lorentz Metric
- wpan
- · Replies 5 ·
Graduate Fuel conservation near a Schwarzschild black hole
- yuiop
- · Replies 5 ·
Graduate How long does a million-light-year journey seem to a photon?
- maximiliano
- · Replies 13 ·
Graduate Spacetime symmetries vs. diffeomorphism invariance
- physicus
- · Replies 34 ·
Graduate A stationary photon for an observer in circular motion?
- Ookke
- · Replies 11 ·
Graduate Why do accelerating clocks at rest relative to each other tick at different rates?
- analyst5
- · Replies 23 ·
Graduate Is the metric tensor constant in polar coordinates?
- Chain
- · Replies 9 ·
Graduate Redshifting Through Hole in Earth
- ClamShell
- · Replies 88 ·
Graduate Current through a wire and special relativity
- oxivixo
- · Replies 8 ·
Graduate Error in Carroll's Spacetime Geometry?
- dEdt
- · Replies 9 ·
Undergrad Why does a moving mechanical watch run slow?
- GZADC
- · Replies 12 ·
Graduate Is the Twin Paradox a Misinterpretation of Relativity?
- Grimble
- · Replies 2 ·
Graduate Generating energy with wormholes?
- Flight
- · Replies 9 ·
Graduate If light approaches a black hole will it accelerate?
- hayden47
- · Replies 10 ·
Graduate Time Dilation: An Overview of an Experiment
- Commando Spaz
- · Replies 1 ·
Graduate Can two objects moving at 0.6c from a point separate at 1.2c?
- daveyb
- · Replies 21 ·
Graduate Observing objects moving close to light speed
- daveyb
- · Replies 5 ·
Graduate Are there non-perfect fluid stress-energy tensors in GR?
- TrickyDicky
- · Replies 36 ·
Graduate Why do we always need to define simultaneity in relativity. The
- arydberg
- · Replies 6 ·
Graduate What does surface area mean in the geodesic equation for orbits around the Sun?
- Philosophaie
- · Replies 3 ·
Graduate What is the Relationship Between Moment of Inertia and Relativity?
- bolbteppa
- · Replies 5 ·
Graduate Coordinates in general relativity
- GarageDweller
- · Replies 5 ·
Graduate Space Time Diagrams? And lorentz Transformation?
- sizle95
- · Replies 9 ·
Undergrad What is the Definition of the Age of the Universe and How is it Determined?
- Dale
- · Replies 13 ·
Graduate If time slows at speed of light
- rusststone1
- · Replies 6 ·
Graduate What is the effect of curvature on the rigidity of a beam?
- pervect
- · Replies 13 ·
Graduate Why is the stress-energy tensor symmetric?
- dEdt
- · Replies 5 ·
Graduate 4-acceleration of a vector in a linearly moving train
- yuiop
- · Replies 12 ·
Graduate Is it possible to exceed the speed of light?
- Paul77
- · Replies 6 ·
Graduate Studying GR from a mathematical point of view
- JG89
- · Replies 6 ·
Graduate Massless charged particle in electrostatic field
- vanhees71
- · Replies 20 ·
Graduate Time dilation for two relatively moving trains
- haisydinh
- · Replies 17 ·
Graduate Use of chain rule in showing invariance.
- mrmojorizing
- · Replies 4 ·
Graduate General relativity without Differential geometry
- shounakbhatta
- · Replies 6 ·
Graduate Does General Relativity Theory Account for Accelerating Frames?
- exmarine
- · Replies 15 ·
Graduate Why do both frames see each other's time running slow?
- rajeshmarndi
- · Replies 1 ·
Graduate Time dilation on fast massive objects
- scienalc
- · Replies 2 ·
Graduate Study buddies for 'A First Course in General Relativity' by B. Schutz
- DarthMatter
- · Replies 3 ·
Graduate Circularity in Weinberg's affine connection definition
- thoughtgaze
- · Replies 9 ·
Graduate Time Dilation and Length Contraction
- MostlyHarmless
- · Replies 14 ·
Graduate How does Hawking radiation cause black holes to lose mass?
- acesuv
- · Replies 1 ·
Graduate Why Is the Norm of the Tangent Vector Constant in Geodesic Equations?
- Nabigh R
- · Replies 3 ·
Graduate Do world lines respect light cone asymptotes in Minkowski diagrams?
- gharkness
- · Replies 2 ·
Graduate Distance role in simultaneity measurement
- analyst5
- · Replies 42 ·
Graduate Maxwell's equations and spacetime
- DarthMatter
- · Replies 4 ·
Graduate Proper time of an accelerated frame in a external gravitational field
- npnacho
- · Replies 31 ·
Graduate How does GR describe acceleration from non-gravitational forces?
- belliott4488
- · Replies 11 ·
Graduate Could a slower-than-light version of the Alcubierre drive work?
- MonkeyKid
- · Replies 8 ·