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 BRS: Subgroup lattice of a Permutation Group via GAP
- Chris Hillman
- · Replies 1 ·
Graduate Is Simultaneity Absolute in the Context of Relativity?
- samerking
- · Replies 10 ·
Graduate Gravity and Instantaneous Information sharing
- camleot
- · Replies 11 ·
Graduate Sagnac Effect and Special Relativity
- KingNothing
- · Replies 8 ·
Graduate I Still Don't Get General Relativity
- iluvphysics
- · Replies 16 ·
Graduate Can Relative Velocities Exceed the Speed of Light?
- cbd1
- · Replies 3 ·
Graduate Do Objects Become Heavier When Spinning at High Speeds?
- lnsanity
- · Replies 16 ·
Graduate Light ray paths near schwarzschild blackhole
- nocks
- · Replies 32 ·
Undergrad Red or Blue Shift: Moving Light Sources Forward/Backward
- lnsanity
- · Replies 6 ·
Graduate What symmetry group models our world in general relativity?
- paweld
- · Replies 13 ·
Graduate CD: How can I compute conformal killing vector fields on a 2D manifold?
- negru
- · Replies 11 ·
Graduate What are the effects of Spacetime Drag ?
- Russell_B
- · Replies 2 ·
Graduate Does Relativity Affect How We See Simultaneous Events on a Moving Train?
- danielatha4
- · Replies 76 ·
Graduate Gravitons and General Relativity: A Recap of the Debate
- ax3111
- · Replies 1 ·
Graduate Object from the sun at half light speed
- webhummer
- · Replies 6 ·
Graduate What would happen to an object falling towards a black hole?
- Pierre007080
- · Replies 4 ·
Graduate Speed of an electromagnetic wave and gravity
- PhanthomJay
- · Replies 11 ·
Graduate Newton, Einstein, multiply connected spacetime, Energy and so forth
- ManDay
- · Replies 3 ·
Graduate Gravity on the Minkowski spacetime
- Altabeh
- · Replies 2 ·
Graduate Relativity, Gravity, Attraction , Curved Space
- NCStarGazer
- · Replies 12 ·
Graduate Stress tensor analogue in electromagnetism
- jfy4
- · Replies 4 ·
Undergrad Mass Energy Equivalence and Kinetic Energy
- gareththegeek
- · Replies 9 ·
What are some examples that challenge the theory of relativity?
- techmologist
- · Replies 15 ·
Undergrad Is it Possible to Attain the Speed of Light by Combining Two Half-Speed Bodies?
- waqarrashid33
- · Replies 5 ·
High School Can We Confirm Concepts in Physics with CS Background?
- robert135
- · Replies 4 ·
Graduate What is the different between general relativity and quantum gravity
- cybertific
- · Replies 2 ·
Graduate General relativity and Higher dimensions
- lightseeker
- · Replies 15 ·
Graduate Ontological concepts(?)/ Special relativity.
- Grimble
- · Replies 14 ·
Graduate What is the physical/geometric meaning of spacelike, timelike and null
- Ranku
- · Replies 8 ·
Graduate Equivalence of mass and energy
- Rasalhague
- · Replies 15 ·
Graduate BRS: Simplicial Homology with Macaulay2
- Chris Hillman
- · Replies 2 ·
Graduate The Debate Around Arthur Beiser's Modern Physics Theory
- I_am_learning
- · Replies 21 ·
Undergrad Do gravitational fields propagate instantaneously or at light speed?
- luxiaolei
- · Replies 2 ·
Graduate Velocitiy turns things into black holes?
- ripoli85
- · Replies 1 ·
Graduate Explanation of General and Special Relativity
- JerryClower
- · Replies 1 ·
Undergrad How to derive t=T/√(1-v²/c²) from the Pythagorean relation
- RK1992
- · Replies 11 ·
Graduate Relativistic elastic collision formulas for momentum and energy
- Altabeh
- · Replies 8 ·
Graduate Black Hole particles - acting as bosons?
- noblec04
- · Replies 3 ·
Graduate Real physical effects of Relative Motion
- mogra
- · Replies 20 ·
Graduate Gravitational force between two photons from their energy
- blaksheep423
- · Replies 32 ·
Graduate Why is there a preferred frame in string theory with curled dimensions?
- CuriousKid
- · Replies 10 ·
Graduate How is E=mc² Derived from Einstein's Equations?
- fawk3s
- · Replies 13 ·
Graduate What is the mathematical genealogy of Felix Klein?
- Chris Hillman
- · Replies 2 ·
Undergrad How does a photon reach light speed if it has zero acceleration?
- smslca
- · Replies 13 ·
Graduate How Can We Visualize Ricci Curvature in Different Dimensions?
- CuriousKid
- · Replies 9 ·
Graduate Relative velocity=relative momentum?
- h1a8
- · Replies 1 ·
Undergrad What is Special Relativity and how does it work?
- der.physika
- · Replies 5 ·
Graduate Why doesn't length contraction make a star a black hole in some frames?
- luxiaolei
- · Replies 2 ·
Undergrad How Can Time Be Relative While the Speed of Light Remains Absolute?
- Star786
- · Replies 2 ·
Graduate Estimating Photon # in 2 Frames: Lorentz Transformation
- mathfeel
- · Replies 2 ·
Graduate Covariant form of Maxwell's equations and Lorentz invariance
- abotiz
- · Replies 11 ·
High School The relation with time and light
- Ren313
- · Replies 7 ·
Undergrad Can any celestal body or anything rotate at speed of 90 degree
- kushan
- · Replies 3 ·
Graduate What's up with spinning superconductors?
- Gerenuk
- · Replies 4 ·
Graduate Question on special relativity
- kknull
- · Replies 33 ·
Graduate Is the equivalence principle good for anything?
- CuriousKid
- · Replies 62 ·
Graduate Experimental tests of General relativity vs Cartan extension
- CuriousKid
- · Replies 6 ·
Graduate Does Time Exist at the Speed of Light?
- dewaite
- · Replies 36 ·
Graduate Train clock paradox: why do timers on moving train show equal times?
- mhaglund
- · Replies 12 ·
Graduate Can you increase the speed of light?
- Agent M27
- · Replies 12 ·
Graduate Torque relative to an inertial frame
- e2m2a
- · Replies 1 ·
Graduate Original rest frame versus instantaneous rest frame
- wam_mi
- · Replies 2 ·
Graduate Special Relativity / Cosmology
- paulselhi
- · Replies 5 ·
Graduate Some questions regarding gravity
- saln1
- · Replies 1 ·
Graduate Transformation of k_y in the wave 4-vector
- jason12345
- · Replies 1 ·
Graduate Strange geodesic in Schwartzschild metric
- paweld
- · Replies 7 ·
Graduate What Are the Properties of Light and Matter Waves?
- dewaite
- · Replies 13 ·
Graduate Relativistic Doppler effect and relativity principle
- E=mc^84
- · Replies 19 ·
Graduate Simultaneity (Special Relativity)
- rpardo
- · Replies 7 ·
Graduate Understanding Special Relativity vs Quantum Mechanics
- Wannabeagenius
- · Replies 10 ·
Undergrad Could the universe's spin cause accelerating expansion?
- fys iks!
- · Replies 23 ·
Graduate Unsophisticated, theoritical implications of time dilation between 2 worlds
- CastorRuss
- · Replies 6 ·
Undergrad Weight, Acceleration, Gravitational Equivalence
- gonegahgah
- · Replies 18 ·
Graduate Light speed, time dilation question
- mcjosep
- · Replies 4 ·
Graduate Geo600 search for gravity waves
- AWA
- · Replies 11 ·
Graduate Twin paradox without length contraction
- ed2288
- · Replies 7 ·
Graduate STRACTWhy Do We Always Rescale the Null Direction in Conformal Compactification?
- paweld
- · Replies 1 ·
Undergrad What is the Einstein Velocity Addition Formula and How Does It Work?
- freydawg56
- · Replies 9 ·
Graduate Are centrifugal acceleration and gravitational time dilation equivalent?
- gonegahgah
- · Replies 31 ·
Graduate What Causes the Sagnac Effect and How to Calculate Reduction in Light Intensity?
- MathematicalPhysicist
- · Replies 9 ·
Graduate Inconsistent forms of the metric in a uniform field
- bcrowell
- · Replies 95 ·
Graduate Spinning disk approaching c, what will happen?
- CuriousG44
- · Replies 10 ·
Graduate Is the Higgs Boson Necessary if Lorentz-Fitzgerald Accounts for Mass Increase?
- Boeley
- · Replies 7 ·
Undergrad Understanding Mass from Different Observers
- Tregg Smith
- · Replies 3 ·
Graduate Definition of a rotating frame in GR?
- bcrowell
- · Replies 5 ·
Graduate Proving the One Way Twin Paradox: O' Reads T'>0, K Clock Reads More than T
- GRDixon
- · Replies 2 ·
Graduate Why can't the center of a finite unbounded universe be a preferred frame?
- edpell
- · Replies 2 ·
Graduate Does the Michelson-Morley Experiment Assume a Constant Speed of Light?
- teodorakis
- · Replies 12 ·
Undergrad Why Speed of Light Can't Be Exceeded?
- taylrl3
- · Replies 24 ·
Graduate Putting numbers in Einstein's thought problem
- DanRay
- · Replies 33 ·
Graduate Why do clocks tick slower and faster in different depths of gravity?
- gonegahgah
- · Replies 2 ·
Graduate Null curves vs. straight curves on Minkowski space
- quasar_4
- · Replies 3 ·
Graduate Is Time Indistinguishable from Motion in a Motionless Universe?
- madness
- · Replies 29 ·
Graduate Energy conservation in a closed universe
- JustinLevy
- · Replies 17 ·
Graduate Is there a thermal equilibrium in General Relativity?
- evilcman
- · Replies 6 ·
Graduate Is curvature guaranteed if only one connection coefficient is 'large'
- avirab
- · Replies 9 ·
High School First reactions to Einstein's theories? (support or refute)
- smhni
- · Replies 6 ·
Graduate Can Negative Curvature Create Closed Spaces Like a Torus?
- taylrl3
- · Replies 3 ·
Graduate Vielbein Postulate: Unpacking Carroll's Derivation
- haushofer
- · Replies 4 ·
Graduate Schutz - A First Course in GR - Simple Summation Question
- CFDFEAGURU
- · Replies 8 ·