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 Can any pair of spacelike events be simultaneous?
- johnny_bohnny
- · Replies 16 ·
Undergrad Does gravity cause moving bodies to lose energy like friction?
- Veridian
- · Replies 3 ·
Graduate Why can't supercomputers find a theory reconciling gravity and quantum mechanics?
- Imafungi
- · Replies 26 ·
Graduate Does the relativity of simultaneity exist 'at a distance'?
- JTT10
- · Replies 10 ·
Undergrad How did Einstein come to the Conclusion of Spacetime?
- TimeInquirer
- · Replies 1 ·
Graduate An Apparent Contradiction in General Relativity?
- Juan Largo
- · Replies 35 ·
Graduate From local symmetry to General Relativity
- quangtu123
- · Replies 7 ·
Graduate Map Taking Proper Time to Euclidean Length
- Psychosmurf
- · Replies 11 ·
Graduate Why does the Minkowski metric have a negative temporal component?
- space-time
- · Replies 12 ·
Graduate Are Solutions to GR Field Equations Chaotic?
- Juan Largo
- · Replies 3 ·
Undergrad Can energy be substituted for mass in Newton's gravitational formula?
- RandomDude
- · Replies 6 ·
Graduate Interesting calculations with Bianchi IX cosmological models
- befj0001
- · Replies 1 ·
Graduate How Do Equations Demonstrate Time Dilation Near Black Holes?
- bunsen1
- · Replies 7 ·
Graduate Affine connection transformation
- Mr-R
- · Replies 5 ·
Graduate C as the speed of light and the speed of sound in Michelson-Morley.
- GerryB
- · Replies 54 ·
Graduate Speed of a mass near black hole
- Aditya Vishwak
- · Replies 11 ·
Graduate Superluminal (Tachyon) Transformations
- MattRob
- · Replies 3 ·
Graduate Cause of inertia and Mach's principle in an expanding universe
- Athanasius
- · Replies 25 ·
Graduate Does relativity affect velocity dependent events?
- Wittyname6
- · Replies 3 ·
Graduate Speed of light in non inertial conventions
- johnny_bohnny
- · Replies 9 ·
Graduate Manipulating Tensor Expressions to Derive the Poincare Algebra
- stormyweathers
- · Replies 1 ·
Graduate Simple (?) special relativity question
- Involute
- · Replies 10 ·
Graduate What is the difference between Lorentz transformations and proper time
- albertrichardf
- · Replies 6 ·
Graduate Special relativity effects in general relativity
- johnny_bohnny
- · Replies 30 ·
Graduate Deriving Ricci tensor R_μν vs R_νμ from the commutator
- space-time
- · Replies 15 ·
Graduate MTW definition of differential froms made rigorous
- micromass
- · Replies 2 ·
Graduate Index gymnastics of electromagnetism quantities
- coleman123
- · Replies 3 ·
Graduate Deriving relativistic momentum p = γmv in one dimension
- albertrichardf
- · Replies 5 ·
Graduate Solving the Twin Paradox with General Relativity
- quangtu123
- · Replies 6 ·
Graduate 3-d versus 4-d spacetime curvature
- DiracPool
- · Replies 4 ·
Graduate Newtonian gravity and Special Relativity
- analyst5
- · Replies 10 ·
Graduate Cristoffel Symbol of spherical coordinates
- space-time
- · Replies 6 ·
Graduate Relative velocities of particles and photons
- DiracPool
- · Replies 7 ·
Graduate What is the relationship between the expanding universe and the speed of light?
- castrius
- · Replies 9 ·
Graduate Measurement of relativistic effects from a non-inertial frame
- johnny_bohnny
- · Replies 5 ·
Graduate Checking my derived metric tensor for spherical coordinates
- space-time
- · Replies 2 ·
Graduate Could time and space behave differently inside a supermassive hollow sphere?
- Hornbein
- · Replies 7 ·
Graduate What Are the Implications of the Bell Paradox on Accelerating Ships?
- lrhorer
- · Replies 25 ·
Graduate Types" of Space-Time Curvature in GR
- Drakkith
- · Replies 10 ·
Graduate Do Massless Objects Travel at the Speed of Light Relative to Each Other?
- Juan Largo
- · Replies 17 ·
Graduate Spin precession Killing fields
- WannabeNewton
- · Replies 22 ·
Graduate Can black holes merge to create larger event horizons?
- Soule
- · Replies 58 ·
Graduate Time dilation and curved space
- Warp
- · Replies 7 ·
Graduate Mass and thermodynamics in relativity
- lrhorer
- · Replies 27 ·
Graduate Thomas precession equation in Weinberg's Gravitation and Cosmology
- DrewD
- · Replies 5 ·
Graduate Does permanence require an absolute frame of reference?
- yojimbo234
- · Replies 4 ·
Graduate How is the S^3 metric defined by a unit vector and coordinate changes?
- ChrisVer
- · Replies 5 ·
Undergrad Mass/Energy in special relativity
- Entanglement
- · Replies 3 ·
Graduate Special relativity and gravitation
- tom.stoer
- · Replies 20 ·
Graduate Is a gravity transformer possible?
- DrZoidberg
- · Replies 4 ·
Graduate Could SR not be built from only one postulate?
- guitarphysics
- · Replies 122 ·
Graduate Change of Determinant of Metric Under Var Change
- ChrisVer
- · Replies 1 ·
Graduate Is the Hawking Mass Stable in Supergravity Theories?
- darida
- · Replies 9 ·
Graduate Why doesn't light deflection near a mass violate special relativity?
- Devin
- · Replies 5 ·
Graduate Muons: Why time dilation takes precedence?
- Raze
- · Replies 1 ·
Graduate Time Dilation of Charged Particle "p
- jartsa
- · Replies 1 ·
Graduate Moving objects in Stationary and Static Spacetimes
- latentcorpse
- · Replies 23 ·
Graduate Maximum possible gravitational time speed-up in the universe?
- Arbitrageur
- · Replies 14 ·
Graduate Why Does Applying a Second Derivative to an Antisymmetric Tensor Yield Zero?
- electricspit
- · Replies 4 ·
Graduate Speed of 2 photons traveling in opposite directions
- iwant2beoz
- · Replies 9 ·
Graduate Understanding Photons: The Role of Energy and Momentum in their Existence
- Goodver
- · Replies 4 ·
Graduate Is the speed of light truly constant in all directions?
- seb7
- · Replies 33 ·
Graduate Parity of stress tensor versus stress-energy tensor
- bcrowell
- · Replies 4 ·
Graduate Does born rigidity mean elongation of a body?
- Sreenath Skr
- · Replies 8 ·
Undergrad What is the Lorentz Transformation Equation and its Use in Relativity?
- ggolu2
- · Replies 4 ·
Undergrad How Does Speed and Gravity Affect Time Dilation?
- aqwas
- · Replies 7 ·
Graduate Can Tensor Products Define (M,N) Tensors?
- guitarphysics
- · Replies 4 ·
Graduate Constructing an artificial blackhole
- putongren
- · Replies 22 ·
Graduate Lorentz transformation And Einstein's Laws.
- Hepic
- · Replies 7 ·
Graduate Confusing points in relativistic dynamics
- Jeffrey Yang
- · Replies 8 ·
Graduate Are Wormholes Physically Possible in Our Universe?
- ChrisVer
- · Replies 40 ·
Graduate Does light bend spacetime?
- brianhurren
- · Replies 1 ·
Graduate How is the speed of light being measured?
- undertakerph
- · Replies 27 ·
Graduate Alcubierre / GR Warp drive and Entering/Exiting a Light Cone
- MattRob
- · Replies 9 ·
Graduate Feasible way to go the speed of light?
- s28400
- · Replies 3 ·
Graduate Could superman fit his hand around a Basketball?
- Evanish
- · Replies 12 ·
Graduate Special relativity time dilation question
- astrobird
- · Replies 8 ·
Graduate 13 parameters for agreement with observations
- exmarine
- · Replies 1 ·
Graduate If I travel at light speed for 20 minutes total, why would Earth age thousands of years?
- darrin016
- · Replies 13 ·
Graduate Could Alcubierre drive work with positive energy density instead of exotic matter?
- Algorithmic
- · Replies 1 ·
Graduate What is the nature of gravity?
- jryp998
- · Replies 16 ·
Graduate Rotation and circular motion under different simultaneity conventions
- johnny_bohnny
- · Replies 15 ·
Graduate Perception and calculating when events happened
- johnny_bohnny
- · Replies 35 ·
High School Does a plane flying west take less time than flying east due to Earth's rotation?
- Maxo
- · Replies 10 ·
Graduate Is the speed of light constant with time?
- vijayst
- · Replies 1 ·
Undergrad Why does gravity not create resistance?
- sharnrock
- · Replies 4 ·
Graduate Length contraction of rotating wheel
- Erland
- · Replies 8 ·
Graduate Measuring time with mirrors on a moving vehicle
- BiGyElLoWhAt
- · Replies 10 ·
Graduate Understand Degeneracy of Metric at Schwarzschild Singularity
- ChrisVer
- · Replies 3 ·
Graduate Is "length contraction" an illusion?
- BiGyElLoWhAt
- · Replies 54 ·
Graduate Zeroth component of Spin 4-Vector
- thebiggerbang
- · Replies 3 ·
Graduate Why covariant derivatives of covariant tensors have a minus sign
- space-time
- · Replies 20 ·
Graduate Information Faster Than Light - Thought Experiment
- Thead
- · Replies 9 ·
Graduate Can information truly be teleported using quantum entanglement?
- Thinkor
- · Replies 5 ·
Graduate The Relativistic Force-Norm and the Proof of E=mc2
- velo city
- · Replies 86 ·
Graduate Velocity of light and it's frame of reference.
- MedianPlebeian
- · Replies 7 ·
Graduate Verification of c isotropy vs c in Einstein synchronization
- randyu
- · Replies 5 ·
Graduate Drawing lines through spacetime warped by the mass of the earth
- nalA
- · Replies 6 ·
Graduate How is it possible for binary stars to not show changes in aberration angles?
- exmarine
- · Replies 102 ·
Graduate Laying a rope into a black hole very fast
- jartsa
- · Replies 9 ·