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 Euler Lagrange equation as Einstein Field Equation
- Black Integra
- · Replies 6 ·
Graduate What is the relationship between light rays and the equations of motion in GR?
- lalbatros
- · Replies 4 ·
Graduate Possible 3rd Interpretation of the Michelson-Morley Experiment
- wmikewells
- · Replies 29 ·
Graduate Travelling faster than the speed of light - SR
- hmvince
- · Replies 31 ·
Graduate Traveling Info: Images, Photons, Speed of Light
- Unique
- · Replies 1 ·
Graduate Gravitionel redshift – How is it working?
- Bjarne
- · Replies 37 ·
Graduate Special relativity and photon dimensionality
- Aziza
- · Replies 7 ·
Graduate Rigid body angular velocity limit
- bob900
- · Replies 1 ·
Undergrad Is acceleration relative or absolute?
- aditya23456
- · Replies 26 ·
Graduate Can thermodynamics prove time has an absolute nature?
- zhangyang
- · Replies 4 ·
Graduate Is the Sum of Christoffel Symbols Equal to Their Negative in Tensor Calculus?
- elfmotat
- · Replies 1 ·
Graduate Does SR actually forbid FTL travel?
- DrSnarl
- · Replies 102 ·
Undergrad Gravitational force at midpoint between 2 equal massive bodies
- marek2k12
- · Replies 1 ·
Graduate Derivation of relativistic motion equations from action
- lmcelroy
- · Replies 3 ·
Graduate Does Friedmann equation allow for complex scale factor?
- Piano man
- · Replies 3 ·
Undergrad Can a slower ship arrive faster in different reference frames?
- shatteredmerc
- · Replies 11 ·
Undergrad Can an event occur in one frame of reference but not another?
- whosapopstar?
- · Replies 91 ·
Undergrad Time dilation paradox between two moving observers
- krylea
- · Replies 2 ·
Undergrad Learning Tensor Basics: Overcoming Difficulties
- grzz
- · Replies 5 ·
Undergrad Does the energy of light depend on the observer's reference frame?
- blarpityblorp
- · Replies 3 ·
Graduate Classic and relativistic 3-velocity
- Wox
- · Replies 18 ·
Undergrad Has the One-Way Speed of Light Been Measured?
- sonmage
- · Replies 11 ·
Graduate MTW Gravitation Ex. 25.16: Comparing Equations & Expressing u_0 in \tilde{L}
- luinthoron
- · Replies 2 ·
Graduate Free fall and blue shift question.
- cragar
- · Replies 5 ·
Graduate Is there a frame of reference where events A and B are simultaneous?
- Robbi
- · Replies 2 ·
Graduate First historical experiment disproving Ritz emission theory?
- bcrowell
- · Replies 8 ·
Graduate Is time real or does relativity only affect how clocks tick?
- markoman
- · Replies 13 ·
Undergrad How Do You Convert GeV/c to m/s for Particle Velocities?
- iamBevan
- · Replies 5 ·
Graduate Does the Black Hole Myth Hold True?
- Khashishi
- · Replies 14 ·
Graduate Trip to Saturn: Constant Acceleration of 9.81 m/s^2 - Is It Possible?
- Mootlime
- · Replies 5 ·
Graduate Reversal of proper time for a falling object
- yuiop
- · Replies 49 ·
Graduate Does Y See Events in X as Simultaneous?
- Inhsdehkc
- · Replies 12 ·
Undergrad Is there truly an object at rest in the universe?
- chaszz
- · Replies 5 ·
Graduate Distance/rate = t = sqrt[2d/a] = Same Proper Time ?
- Point Conception
- · Replies 10 ·
Undergrad Noob time-space thought problem
- MarvinMartian
- · Replies 2 ·
Graduate Derivation of the value of christoffel symbol
- Boltzmann2012
- · Replies 6 ·
Graduate How is traveling backward in time possible?
- Bararontok
- · Replies 5 ·
Graduate How Does Relativistic Motion Affect Batman's Batship Shadow and Laser Image?
- yuiop
- · Replies 9 ·
Graduate Spacetime curvature observer and/or coordinate dependent?
- Passionflower
- · Replies 37 ·
Graduate Is SR an approximation or a special case?
- Vorde
- · Replies 2 ·
Undergrad Newb Question Regarding Special Relativity
- S1lent Echoes
- · Replies 12 ·
Graduate Why do the electrons want the rest frame of the wire to appear neutral?
- omega_minus
- · Replies 1 ·
Undergrad Question on Mass-energy equivalence
- jpo
- · Replies 13 ·
Graduate How can we explain the behavior of interference patterns in different frames?
- Adel Makram
- · Replies 72 ·
Graduate Proper time in Schwarzschild Space
- Nilupa
- · Replies 10 ·
Graduate Black hole why wouldn't this work
- vdub
- · Replies 9 ·
Undergrad The speed of light and time travel
- Henzo
- · Replies 11 ·
Graduate Relativity of simultaneity and the block universe
- TerryWalsh290
- · Replies 36 ·
Graduate Can we ever escape the pull of a black hole's singularity?
- dipole
- · Replies 2 ·
Graduate Does light slow down (relativistic) near a black hole?
- Buzzworks
- · Replies 18 ·
Graduate Difference between Lorentz and Einstein
- NotAName
- · Replies 62 ·
Graduate Faraday tensor vs. Maxwell-Eistein tensor
- TrickyDicky
- · Replies 2 ·
Graduate A one-form versus a dual basis vector
- Scott4775
- · Replies 2 ·
Graduate Implications of orthogonal clocks in rockets
- BOYLANATOR
- · Replies 12 ·
Graduate Understanding Planck Length and Time in Relation to Spacetime and Acceleration
- DevonG
- · Replies 2 ·
High School I have a fundamental mis-understanding about gravity.
- Dr Ninja
- · Replies 24 ·
Graduate Orbits in strongly curved spacetime
- Naty1
- · Replies 3 ·
Undergrad Was gravitational length contraction predicted by general theory of relativity ?
- manvirsingh
- · Replies 2 ·
Graduate Does an External Observer See a Different Light Ray Path in Special Relativity?
- chris2112
- · Replies 2 ·
Graduate Deriving Schwarzschild Metric: A Simple Method?
- sharma_satdev
- · Replies 2 ·
Graduate Are laws of nature really the same in all reference frames?
- Bjarne
- · Replies 178 ·
Graduate Why does the circle appear as an ellipse when moving at different velocities?
- ShayanJ
- · Replies 9 ·
Undergrad Fringe shifts - Michelson Morely Experiment
- mangaroosh
- · Replies 29 ·
Undergrad Time Distortion and Time Dilation
- johann1301
- · Replies 1 ·
Graduate Why does light take time to travel if time stops for photons?
- tonybonanzas
- · Replies 11 ·
Graduate Relativistic Space Matter Flows over near light speed ships
- Albertgauss
- · Replies 8 ·
Graduate Observed speed of light [actually about relativistic velocity addition]
- thecow99
- · Replies 22 ·
Graduate What exactly does 'many-fingered time' mean?
- bookworm006
- · Replies 3 ·
Graduate Synchronized clocks with respect to rest frame
- mananvpanchal
- · Replies 130 ·
Graduate Extra energy of photon in doppler effect
- kalpak
- · Replies 12 ·
Undergrad Why is speed of light constent at a given place
- abhishek002
- · Replies 5 ·
Graduate Relativity, a theory of information?
- faen
- · Replies 54 ·
Graduate What are the limitations of the Einstein field equation?
- aditya23456
- · Replies 1 ·
Graduate Can GW detectors detect scalar and vector radiation modes?
- PAllen
- · Replies 1 ·
Graduate Gravitational time dilation
- grav-universe
- · Replies 40 ·
Graduate Is Gravitational Time Dilation Symmetrical Like Velocity-Based Time Dilation?
- johann1301
- · Replies 5 ·
Graduate Understanding Wald's Book: Appendix E and the Einstein Equation
- atrahasis
- · Replies 1 ·
Graduate Why Does the Spaceship Record the Proper Time in Relativity?
- Undoubtedly0
- · Replies 13 ·
Graduate Is relativity of simultaneity a consequence of time dilation?
- mangaroosh
- · Replies 317 ·
Graduate Finding locally measured momentum from relativistic velocity after n jumps
- grav-universe
- · Replies 15 ·
Graduate Can length contraction change the quantization of magnetic flux?
- cragar
- · Replies 4 ·
Graduate Doppler effect of light source
- mananvpanchal
- · Replies 5 ·
Graduate Schwartzschild metric difficulty
- Thinkor
- · Replies 3 ·
Graduate The postulates of Special Relativity
- Debdutta
- · Replies 3 ·
Graduate Visualization of space time contraction and gravity
- dustinthewind
- · Replies 4 ·
Graduate The relationship between coordinate systems and reference frame
- paultsui
- · Replies 5 ·
Graduate Why the black hole density is called the infinite density.
- manvirsingh
- · Replies 57 ·
Graduate Observing the physics of Black Hole interiors
- aljo2345
- · Replies 19 ·
Undergrad Spacetime dilation in special relativity
- rabcarl
- · Replies 7 ·
Graduate Why Do We Consider Gravitons if Gravity Is Space-Time Curvature?
- mandhjh
- · Replies 2 ·
Undergrad Questions about results of time traveling
- TrentM2833
- · Replies 6 ·
Graduate Does Born rigidity describe particle creation?
- Naty1
- · Replies 5 ·
Graduate How Does Gravity Influence Light's Path in General Relativity?
- nemia
- · Replies 4 ·
Graduate Does time dilate or do clocks malfunction at high velocity?
- nehemiah
- · Replies 3 ·
Graduate Covariant and contravariant components as matrix multiplication
- enfield
- · Replies 1 ·
Graduate Black holes slowing as they pass each other?
- cephron
- · Replies 11 ·
Graduate Denote the value of the determinant
- rbwang1225
- · Replies 1 ·
Graduate Singularity theorms and perturbation from exact symmetry
- julian
- · Replies 1 ·
Graduate Accessible Proof for Buchdahl's Theorem in General Relativity?
- lugita15
- · Replies 1 ·
Graduate Why don't both lightning strikes reach the train's midpoint simultaneously?
- icexelloss
- · Replies 3 ·