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 Wormhole Problem: Limit of Acceleration?
- ericsaul
- · Replies 1 ·
Graduate Gravitational Length Contraction
- nigelscott
- · Replies 3 ·
Graduate Why does ds² = -c²dτ² hold for a satellite orbit at finite radius?
- TrueBlue1990
- · Replies 3 ·
Graduate Meaning of Schwarzschild solution in isotropic/anisotropic coordinates
- Agerhell
- · Replies 12 ·
Graduate Coordinate patches on curved manifolds
- joda80
- · Replies 22 ·
Undergrad Are descriptions of relative velocity arbitrary?
- coktail
- · Replies 10 ·
Graduate Relative velocity of light in special theory of realtivity?
- A Dhingra
- · Replies 17 ·
Graduate Writing the Einstein action in terms of tetrads
- julian
- · Replies 6 ·
Graduate Can someone interpret this Einstein quote?
- Seminole Boy
- · Replies 31 ·
Graduate Stress-energy tensor definition
- coleman123
- · Replies 7 ·
Graduate Is the Mass of a Photon Affected by its Energy?
- codjohns
- · Replies 6 ·
Graduate Why is gravity monopolar when electromagnetic force is bipolar?
- Bob Nesil
- · Replies 3 ·
Graduate What do spatial components of the stress-energy tensor represent?
- paweld
- · Replies 9 ·
Graduate Why is Motion Through Space Limited in Relation to Motion Through Time?
- dm4b
- · Replies 17 ·
Graduate Schwarzschild conservation of angular momentum
- Agerhell
- · Replies 14 ·
Graduate Minimal Coupling Needed for Covariant Energy Conservation?
- atyy
- · Replies 2 ·
Graduate Calculating RiemannScalar in 2-D: Where to Start
- ssamsymn
- · Replies 5 ·
Graduate Are clocks used in general relativity?
- nortonian
- · Replies 38 ·
Graduate Why does a moving observer measure light at c, not less?
- Naveen3456
- · Replies 20 ·
Graduate How can space curve locally if it has no boundaries?
- Seminole Boy
- · Replies 29 ·
Graduate Is Gravitational Time Dilation Affected by Gravitational Potential?
- Brute Force
- · Replies 1 ·
High School What is the meaning of E=mc^2?
- Ahmed Samra
- · Replies 2 ·
Undergrad Examples for gravitational time dilation
- Ahmed Samra
- · Replies 14 ·
Undergrad Explaining the equation of gravitational time dilation
- Ahmed Samra
- · Replies 3 ·
Undergrad Equation for calculating gravitational time dilation
- Ahmed Samra
- · Replies 2 ·
Graduate What is the equation for gravitational time dilation?
- Ahmed Samra
- · Replies 9 ·
Undergrad Which equation calculates gravitational time dilation?
- Ahmed Samra
- · Replies 1 ·
Graduate Length contraction occurs infront of AND behind you?
- coktail
- · Replies 3 ·
Graduate How is acceleration equivalent to rest in a gravitational field
- Seminole Boy
- · Replies 12 ·
Graduate Can we extract energy from a gravitational field ?
- zn5252
- · Replies 19 ·
Undergrad Special and general relativity
- Ahmed Samra
- · Replies 7 ·
Undergrad How to derive the Lorentz transformation
- ash64449
- · Replies 3 ·
Graduate Relativity of simultaneity through lorentz transformation
- ash64449
- · Replies 5 ·
Graduate Maxwell's equations in curved space-time
- ash64449
- · Replies 24 ·
Graduate How would the Michelson-Morley experiment appear in an observer's rest frame?
- ash64449
- · Replies 25 ·
Graduate Speed of light vs universe expansion
- djsubtronic
- · Replies 6 ·
Graduate Is the speed of light infinite?
- barbacamanitu
- · Replies 48 ·
Graduate Energy analogs in expanding/collapsing dust universes
- Spinnor
- · Replies 4 ·
Graduate Total velocity of resting object on earth from universal frame of refe
- cyboman
- · Replies 6 ·
Graduate Does the GR orbit equation reduce to the Newtonian limit?
- center o bass
- · Replies 1 ·
Graduate Does Bending Space/Time Have Credibility?
- aleemudasir
- · Replies 3 ·
Graduate Poincare Transformation: Understanding its Properties and Group Structure
- Saeide
- · Replies 2 ·
Undergrad Why does proper acceleration feel real if all motion is relative?
- Seminole Boy
- · Replies 11 ·
Graduate Deriving equations 2.5 and 2.6 from Callan-Myers-Perry black holes
- ilp89
- · Replies 8 ·
Graduate So you are driving a car at (almost) the speed of light
- ghoul31
- · Replies 7 ·
Undergrad Does time pass differently for observers of vastly different sizes?
- capcom1983
- · Replies 4 ·
Graduate Space-time curvature as gravity only for speeding particles?
- Edi
- · Replies 21 ·
Graduate What acceleration is equivalent to spacetime curvature from the sun?
- ash64449
- · Replies 19 ·
Graduate Acceleration has begun to drive me crazy .
- Seminole Boy
- · Replies 12 ·
Graduate Dominant non-linear terms in MTW exercise 19.3
- zn5252
- · Replies 2 ·
Graduate Raising and lowering indices in Linearized theory
- zn5252
- · Replies 3 ·
Graduate Space Time Continuum: A Scientific Analysis
- Naveen3456
- · Replies 4 ·
Graduate Does matter break the light speed barrier after the event horizon?
- chestycougth
- · Replies 9 ·
Graduate Does mass physically bend space or is time being bent?
- Seminole Boy
- · Replies 67 ·
Graduate Does relativity permit tachyons given that they have negative gamma?
- Prote
- · Replies 4 ·
Graduate Does Relativistic Mass Affect Scale Readings Inside a Moving Rocket?
- Platformance
- · Replies 10 ·
Graduate Why can't u go faster than the speed of light when speed doesn't exist
- ghoul31
- · Replies 5 ·
Graduate Does Density Influence the Curvature of Spacetime?
- PhyHunter
- · Replies 3 ·
Graduate Speed of light in acclerated frame
- DiracPool
- · Replies 11 ·
Graduate What is the most counter-intuitive concept in the relativity theories?
- Seminole Boy
- · Replies 16 ·
Graduate Why perpetual motion machines are impossible in general relativity
- sshai45
- · Replies 1 ·
Undergrad How can light travel if time is frozen and space contracts to zero?
- Naveen3456
- · Replies 2 ·
High School Acceleration and uniform motion are not making any sense
- Seminole Boy
- · Replies 17 ·
Graduate Mass of objects moving at the speed of light
- eyad-996
- · Replies 16 ·
Graduate Carroll Problem #15 of chapter 3 - As trivial as it seems?
- WannabeNewton
- · Replies 8 ·
Graduate Which Lagrangian is correct for SR?
- geoduck
- · Replies 8 ·
Graduate Ambiguity of time dilation/twin paradox
- ShreyasR
- · Replies 94 ·
Graduate Solving the "Paradox" in Galilean Relativity
- bigerst
- · Replies 1 ·
Graduate Why does a collapsing shell instantly produce Schwarzschild geometry?
- mrspeedybob
- · Replies 1 ·
Graduate Demonstrating Metric Kerr Expression
- safaastro
- · Replies 3 ·
Undergrad Struggling to understand why uniform motion is so different from non-u
- Seminole Boy
- · Replies 19 ·
Undergrad Event Horizons and Star's mass relationship
- PhyHunter
- · Replies 1 ·
Graduate Muon time dilation and length contraction by factor 22
- Adrian07
- · Replies 55 ·
Graduate Why doesn't the moon slide down the spacetime curvature created by Earth?
- jaydnul
- · Replies 70 ·
Graduate Is time in essence - constant?
- trickae
- · Replies 40 ·
Undergrad Are acceleration and deceleration the only ways we feel motion?
- Seminole Boy
- · Replies 20 ·
Graduate MTW, Chap19, Stationary relativistic Vs Weakly gravitating source
- zn5252
- · Replies 7 ·
Graduate Quantum vacuum as origin of light speed?
- lightarrow
- · Replies 6 ·
Graduate Postulates of SR without inertial frames?
- quasar987
- · Replies 31 ·
Graduate Photons effected by gravity of a Blackhole?
- sinesawsquare
- · Replies 3 ·
Graduate Deciphering the Christoffel Symbol and Potential in Shutz's Relativity Book"
- alejandrito29
- · Replies 3 ·
Graduate Feynman field transformations
- harpf
- · Replies 3 ·
Graduate If force is what causes gravity (motion), what is causing force?
- Seminole Boy
- · Replies 15 ·
Graduate Gravitation(angular deflection of a planet from a massive star)
- ErwinMoses
- · Replies 2 ·
Graduate A spaceship moving near the speed of light
- Naveen3456
- · Replies 11 ·
Graduate Can the Speed of Light Fluctuate Due to Changes in the Vacuum of Space?
- Serge58
- · Replies 7 ·
Graduate Aging of four observers traveling at 0.9c with different paths
- Seminole Boy
- · Replies 19 ·
Graduate Black hole information paradox
- ArthurDent
- · Replies 44 ·
Graduate Does creeping ray explain light bending around the sun better than spacetime curvature?
- AkInfinity
- · Replies 2 ·
Graduate Is gravity just an illusion in the universe?
- Naveen3456
- · Replies 13 ·
Undergrad Why matter can't reach the speed of light ?
- big_bounce
- · Replies 40 ·
Graduate One-way speed of light and clock sync
- nikolakis
- · Replies 51 ·
Graduate Would Photon Clocks be possible?
- tinypositrons
- · Replies 6 ·
Undergrad Can continuous acceleration reach speed of light?
- vipinpsharma
- · Replies 14 ·
Graduate Concerning how quickly gravity takes to effect distant bodies
- acesuv
- · Replies 11 ·
Graduate Why can't we just use one theory for everything?
- uperkurk
- · Replies 7 ·
Undergrad Does relativistic time dilation combine with light-travel-time effects?
- meoryou
- · Replies 5 ·
Graduate Is the Twin Paradox Resolved by Considering the Metric of Spacetime?
- jaydnul
- · Replies 8 ·
Graduate Is there a simple way of deriving Lorentz transformation?
- dailin223
- · Replies 13 ·
Undergrad Time dilation and lorentz transformation
- nn542
- · Replies 11 ·