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 What is the significance of VSL Theory in modern physics?
- risendemon
- · Replies 4 ·
Graduate An extended look at light in SR
- FunkyDwarf
- · Replies 15 ·
Graduate A bit introduction to foliation in GR and some question.
- Kevin_spencer2
- · Replies 1 ·
Graduate The Relativity of Time Dilation: Is Time Dilation Truly Relative?
- paintonfire
- · Replies 6 ·
Graduate Fast object moving along a table
- stunner5000pt
- · Replies 8 ·
Graduate What Alternative Term Can Replace Non-Proper Length in Relativistic Terminology?
- bernhard.rothenstein
- · Replies 2 ·
Graduate Gravitational and inertial mass
- pivoxa15
- · Replies 13 ·
Graduate Time a fourth dimension? is a boost a rotation?
- jrrship
- · Replies 16 ·
Graduate Consistent with special relativity?
- ZephyrWest
- · Replies 10 ·
Graduate A mechanical system in special relativity
- Methavix
- · Replies 23 ·
Graduate Relativistic Balance: Solving Problem w/Cube & Sphere
- bernhard.rothenstein
- · Replies 20 ·
Graduate Energy requirements for a relativity launcher
- Jota
- · Replies 2 ·
Undergrad Ageless photon. do photons travel through time?
- jrrship
- · Replies 21 ·
Graduate What is an orthogonal chart in the context of Gaussian Normal Coordinates?
- quantum123
- · Replies 6 ·
Graduate Why can galaxies recede faster than light if spacetime is expanding?
- Thrice
- · Replies 9 ·
Graduate Physics laws and expansion of universe?
- tim_lou
- · Replies 7 ·
Graduate Relativistic dynamics without conservation laws
- bernhard.rothenstein
- · Replies 7 ·
Graduate Light as a Relativistic invariant
- FunkyDwarf
- · Replies 7 ·
Graduate Can gravity travel faster than light if gravitons exceed light speed?
- MajorComplex
- · Replies 52 ·
Undergrad Does time pass at different rates for galaxies of different mass?
- heliocentricprose
- · Replies 12 ·
Graduate How Does Gravitational Time Dilation Work in a Uniform Field?
- actionintegral
- · Replies 2 ·
Graduate Proving Parallelism of Orthogonal Vectors to Null Vectors
- quantum123
- · Replies 6 ·
Graduate Do Light Cones Truly Tip Over in General Relativity?
- MeJennifer
- · Replies 39 ·
Graduate Some strange questions about light
- Skhandelwal
- · Replies 44 ·
Graduate Suppose we have a proton and electron, separated with a distance d
- touqra
- · Replies 9 ·
Graduate Proper time or proper time interval
- bernhard.rothenstein
- · Replies 3 ·
Graduate Are two line derivations harmful in teaching special relativity
- bernhard.rothenstein
- · Replies 8 ·
Undergrad Understanding Gravity: Force or Space Warp?
- vbalbert
- · Replies 6 ·
Graduate Tests of equivalence principle based on fluid mechanics
- lalbatros
- · Replies 4 ·
Graduate Finding the original Kennedy & Thorndike paper in Physical Review
- Myst
- · Replies 4 ·
Graduate Who Experiences More Proper Time When Falling into a Black Hole with a Jetpack?
- Wallace
- · Replies 17 ·
Graduate Does a Gravitational Field Contribute to itself
- -Job-
- · Replies 8 ·
Graduate Clock Synchronization and the Effects of Gravity in a Two-Story Building
- actionintegral
- · Replies 10 ·
Graduate A problem concerning the Lorentz transformations
- bernhard.rothenstein
- · Replies 8 ·
Graduate Is an exact solution for the gravitational field of a galaxy possible?
- notknowing
- · Replies 5 ·
Graduate Light Clock Experiment Flawed?
- swerdna
- · Replies 15 ·
High School The Penny Wheeel Diagram Confusion
- MajorComplex
- · Replies 1 ·
Graduate Spinning disk and the speed of light
- billiards
- · Replies 41 ·
Graduate What's gravity from the Quantum point of view
- lokofer
- · Replies 16 ·
Graduate Can Light Define the Structure of Spacetime?
- Symbreak
- · Replies 3 ·
Graduate Are there any theories about black holes existing within a larger black hole?
- Symbreak
- · Replies 22 ·
Graduate Will the 2-Body Problem in General Relativity Require Both Bodies' Metrics?
- quantum123
- · Replies 8 ·
Undergrad How Much Mass Does an Object Gain at High Speeds?
- Fusilli_Jerry89
- · Replies 5 ·
Graduate Is the Speed of Gravity Instantaneous or Limited by Light?
- quantum123
- · Replies 10 ·
Undergrad Does velocity dammage e=mc^2?
- Littlepig
- · Replies 10 ·
Graduate Time Travel using the gravitational field of a circulating light beam
- Chaos' lil bro Order
- · Replies 28 ·
Graduate Lorentz-Einstein transformation
- bernhard.rothenstein
- · Replies 40 ·
Graduate Any research left to do in Special Relativity?
- andytoh
- · Replies 6 ·
Undergrad Why emphasize clock slowing and length contraction in special relativity teaching
- JM
- · Replies 43 ·
Graduate With the Lorentz-Einstein transformations in hands
- bernhard.rothenstein
- · Replies 11 ·
Graduate Gravity waves and a disapprearing sun.
- Chaos' lil bro Order
- · Replies 26 ·
Graduate Hidden variable in SR and GR Relativity?
- Karlisbad
- · Replies 5 ·
Graduate Distance in accelerated frames
- pervect
- · Replies 5 ·
Graduate How Does Rotational Symmetry Affect Gravitational Wave Emission?
- Dr.Brain
- · Replies 20 ·
Undergrad Hard questions to ask a visiting relativity scientist
- Hymne
- · Replies 42 ·
Graduate Gravitation waves from two objects
- kmarinas86
- · Replies 14 ·
Undergrad Thrown Watch Problem: Does It Matter How Fast/High?
- Bos
- · Replies 2 ·
Graduate Gravitational lenses and objects in front of them
- kmarinas86
- · Replies 7 ·
Graduate Does Gravity Bend Light or Curve Space-Time?
- Almeisan
- · Replies 40 ·
Graduate Is There Validity to the Controversial Anisotropic Speed of Light Paper?
- Wallace
- · Replies 6 ·
Graduate Speed of light, Mass, And black Holes
- XeigerA
- · Replies 1 ·
Undergrad What is the theory of relativity?
- groom03
- · Replies 30 ·
Graduate Can Time Dilation Be Calculated for a Hypothetical Relativistic Trip?
- DaveC426913
- · Replies 8 ·
Graduate Counting Solutions of Einstein's Equations
- Chris Hillman
- · Replies 0 ·
Graduate Can spacetime with a compact dimension be foliated into spatial hypersurfaces?
- shoehorn
- · Replies 6 ·
Graduate Does Mass Affect Time and Space Differently?
- SimonA
- · Replies 15 ·
Graduate I heard from that Stocks, the famous mathematician who I appreciate
- enricfemi
- · Replies 6 ·
Undergrad What is the Schwarzschild mass?
- Logarythmic
- · Replies 6 ·
Graduate Why are tensors called covariant and contravariant?
- cesiumfrog
- · Replies 6 ·
Graduate Thrown clock and proper time in Earth's gravitational field
- Wallace
- · Replies 10 ·
Graduate Where does quantum gravity starts ?
- notknowing
- · Replies 16 ·
Graduate How do clocks resynchronize after jumping off a moving train?
- Bos
- · Replies 8 ·
Graduate Does the sun's curvature of space-time cause Earth to orbit it?
- ||spoon||
- · Replies 20 ·
Undergrad How Does Relative Motion Affect Perception of Process Speed?
- tiz
- · Replies 2 ·
Graduate Consider the Incoming Steps of a Rectilinear Path
- bernhard.rothenstein
- · Replies 10 ·
Graduate How to discern something about gravity waves?
- jammieg
- · Replies 11 ·
Graduate Solving GR vs Newton: F = -GMm/R^2 for Relativistic Particles
- lightarrow
- · Replies 4 ·
Graduate Black holes and time speeding up.
- groom03
- · Replies 1 ·
Graduate What limits the speed of light to c and how is it quantized?
- Keithinsingapor
- · Replies 1 ·
Graduate Do all massless particles travel at the speed of light?
- RAD4921
- · Replies 2 ·
Graduate How many Vernal Equinoxes does a relativistic spaceship observer see?
- eiapeteides
- · Replies 69 ·
Graduate Does Black Hole Evaporation Result in Visible Emission and Directional Output?
- algaidaman
- · Replies 3 ·
Graduate Can space-time homogeneity put limits
- dextercioby
- · Replies 2 ·
Undergrad Speed of Light: Is There a Force Limiting Ship Mass?
- ben griffiths
- · Replies 1 ·
Graduate How Does General Relativity Connect Mass and Geometry?
- aeroboyo
- · Replies 19 ·
Graduate Does constant spacetime curvature require endless acceleration?
- nikolatesla20
- · Replies 15 ·
Graduate Why does quantum mechanics contradict general relativity?
- michael879
- · Replies 20 ·
Graduate Symetry, time dilation, twin paradox and all that stuff
- resurgance2001
- · Replies 32 ·
High School Gravitational Lensing: Where to See It Through a Telescope
- hover
- · Replies 1 ·
Graduate Time dilation within the neighbourhood
- Gerinski
- · Replies 2 ·
Graduate Dp/dt in the relativistic domain
- Repetit
- · Replies 2 ·
Graduate Co-ordinate vs. true acceleration
- masudr
- · Replies 5 ·
Graduate An illustration of a limitation of Wikipedia's utility
- Chris Hillman
- · Replies 10 ·
Graduate Does Traveling at Light Speed Affect Fuel Consumption and Time Dilation?
- daz59
- · Replies 3 ·
Graduate Does Light Have Mass in Black Hole Physics?
- Alistair
- · Replies 12 ·
Graduate Heisenberg's uncertainty relation not invariant ?
- notknowing
- · Replies 2 ·
Graduate What Will an Observer Measure When Riding on a Moving Electron in a Wire?
- questionmark
- · Replies 40 ·
Graduate How does GR not allow for antigravity?
- ranger
- · Replies 19 ·
Graduate Specific Orbital Energy at Black holes
- kmarinas86
- · Replies 16 ·
Undergrad Light rod (acoustic rod?) what is that?
- bernhard.rothenstein
- · Replies 4 ·