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 Does relativity apply to a coordinate system moving with a photon?
- duordi
- · Replies 16 ·
Graduate Length contraction depends on the distance of the object?
- Shukie
- · Replies 3 ·
Graduate Calculation of the black hole horizon's surface
- PhysiSmo
- · Replies 3 ·
Graduate Understanding the Metric Tensor and its dx's in Space-Time
- Ben473
- · Replies 4 ·
Graduate What determines who feels the time dilation?
- nickclarson
- · Replies 28 ·
Graduate Breakedown of common sense and inertial ccordinate systems
- Minich
- · Replies 1 ·
Undergrad Affect of gravity instant or not?
- Simulacrum
- · Replies 3 ·
Graduate Travelling near the speed of light
- ColonelCronus
- · Replies 13 ·
Graduate Where did General Relativity Come From
- Galadirith
- · Replies 4 ·
Graduate Why do objects follow curved paths in spacetime without the presence of gravity?
- Landru
- · Replies 7 ·
Graduate Proper time before crossing the singularity in a black hole
- MasterD
- · Replies 99 ·
Graduate Ive been reading ON THE ELECTRODYNAMICS
- Galadirith
- · Replies 14 ·
Graduate Can Black Holes Enable Faster-Than-Light Travel?
- Toms
- · Replies 1 ·
Undergrad Traveling 10 Lightyears at 75% Speed - Time & Average Speed
- shamphys
- · Replies 33 ·
Graduate Paradoxes if instantaneous signals
- koolmodee
- · Replies 32 ·
Undergrad Long Bar and the Speed of Light
- Appity
- · Replies 2 ·
Graduate Accelerated coordinate systems
- DrGreg
- · Replies 8 ·
Graduate Quantum Field Theory - Charged Field
- Katie3
- · Replies 1 ·
Graduate Twin paradox and time dilation.
- anonymoussome
- · Replies 11 ·
Graduate What happens to the energy when accelerating an object at lightspeed?
- sanman
- · Replies 7 ·
Graduate Is the Woodward Effect the key to propellant-less propulsion?
- sanman
- · Replies 1 ·
High School Space-Time Disturbance: What Is It?
- hasanhabibul
- · Replies 3 ·
Undergrad Millenium falcon firing a laser
- nick227
- · Replies 3 ·
Graduate Could you pull someone out of a black hole?
- LowlyEngineer
- · Replies 2 ·
Graduate Event Horizon and Light Exit Cone Question
- Sigie
- · Replies 38 ·
Undergrad Understanding the Relative Aging Equation for High Speeds: Explained Simply
- jtaravens
- · Replies 4 ·
Graduate Understanding Proper Acceleration and Four-Acceleration in Special Relativity
- granpa
- · Replies 2 ·
Graduate Why the Galileo transformations are not correct for inertial systems
- Physicsissuef
- · Replies 7 ·
Graduate Time dilation related questions
- dorohn
- · Replies 1 ·
Graduate Formula for the acceleration felt by an accelerating object?
- granpa
- · Replies 6 ·
Graduate Lorentz transformation in non-inertial frame
- danjan1234
- · Replies 13 ·
Graduate Artificial gravity in spinning space ship conumdrum
- KenJackson
- · Replies 64 ·
Graduate Is Null Physics the Key to Understanding a Balanced Universe?
- chien_fu
- · Replies 4 ·
Graduate Can a pole traveling at 0.88c fit inside a 2 light year long garage?
- spikenigma
- · Replies 14 ·
Graduate Is Gravitational Time Dilation Proportional to Relative Motion Time Dilation?
- Chrisc
- · Replies 8 ·
Graduate Why Does Gravity Exist and What Are Gravitons?
- thewhills
- · Replies 11 ·
Graduate What happens before crossing the Event Horizon
- antd
- · Replies 7 ·
Undergrad What is the principle behind Michelson interferometer?
- Physicsissuef
- · Replies 5 ·
Graduate Understanding Relativity: Observer Perspectives on Time and Distance
- granpa
- · Replies 8 ·
Graduate Is the speed of one beam in the LHC nearly twice that of the other?
- pixel01
- · Replies 5 ·
Graduate Can Newtonian Cosmology Emerge from FRW and Oppenheimer-Snyder Frameworks?
- astromandi
- · Replies 10 ·
Graduate Proper acceleration and g-forces
- granpa
- · Replies 5 ·
Graduate According to Alice's frame of reference
- DocZaius
- · Replies 5 ·
Graduate Can the speed of light be exceeded by relative velocities?
- Garen
- · Replies 8 ·
Graduate Deriving Special Relativity: Force, Acceleration, and Velocity
- snoopies622
- · Replies 7 ·
Graduate Do Moving Reference Frames Affect Event Timing in Special Relativity?
- kehler
- · Replies 5 ·
Graduate Difficulty with imagine ( MM experiment)
- geneen
- · Replies 8 ·
Graduate Time-reverse symmetry of the principle of relativity
- Chrisc
- · Replies 130 ·
Graduate Continuity equation from Stress-Energy tensor
- Jonny_trigonometry
- · Replies 3 ·
Graduate Why does gravity not end at the event horizon?
- okkvlt
- · Replies 3 ·
Graduate Tangential Velocity, Frames, and the Speed of Light
- Nishmaster
- · Replies 5 ·
Graduate Understanding the Relative vs Absolute Nature of Energy Conservation
- Denton
- · Replies 2 ·
Graduate Apparent distances as seen from within Schwarzschild solution
- Jonathan Scott
- · Replies 2 ·
Undergrad Why Did the Michelson-Morley Experiment Assume Aether Has a Constant Velocity?
- SwineFromHELL
- · Replies 4 ·
Graduate Relativistic length, 2 viewpoints
- pacu
- · Replies 1 ·
Graduate What is the problem with my energy calculation in STR?
- vibhuav
- · Replies 7 ·
Graduate Minkowski Spacetime: Exploring General Relativity
- student85
- · Replies 16 ·
Graduate Is there a limit on real inertial frames?
- TimGooding
- · Replies 5 ·
Graduate Wien's law in relativistic frame
- Frank Lampard
- · Replies 2 ·
Undergrad Where do gravitational field lines originate from?
- chhitiz
- · Replies 15 ·
Graduate Relative Motion and Time Dependance on Velocity of Light
- DewaldS
- · Replies 46 ·
High School Does Light Really Have Mass?
- Champion
- · Replies 54 ·
Graduate Mass, Gravity, Spacetime and everything
- Vrareti
- · Replies 28 ·
Graduate Constructing Local Lorentz Frames in Curved Spacetime
- tsahi
- · Replies 7 ·
Graduate Questions about MTW Brick: Page 29, 101, 142
- TeTeC
- · Replies 12 ·
Graduate Strong and weak gravitational Fields
- NoobixCube
- · Replies 6 ·
Graduate Limit to a gravitational field?
- Anticitizen
- · Replies 21 ·
Graduate Who gets there first? Speed of light.
- Tomtom
- · Replies 6 ·
Graduate Alcubierre Drive: Faster Than Light Travel Possible?
- Unredeemed
- · Replies 1 ·
Graduate If 2 spaceships travel at the speed of light
- Conal
- · Replies 13 ·
Undergrad Explaining Length Contraction with the Light Clock Argument
- kehler
- · Replies 2 ·
Graduate What would it be like to fall into a black hole?
- phja
- · Replies 21 ·
Graduate Paradox of gravitational potential energy
- e2m2a
- · Replies 20 ·
Undergrad Moving observer seeing light from both sides simultaneously?
- neurotoxin
- · Replies 5 ·
Graduate What Would a Photon Perceive in the Universe?
- chris.hoops
- · Replies 21 ·
Graduate Why general relativity and quantum mechanics are incompatible?
- Holocene
- · Replies 16 ·
Graduate Tidal forces and geodesic deviation: a principle question
- tsahi
- · Replies 14 ·
Graduate Break the upper limit: 2x speed of light?
- matttan
- · Replies 1 ·
Graduate Why does time have a minus sign in the SR interval equation?
- ibc
- · Replies 24 ·
Graduate Space-time transformations with different shape
- bernhard.rothenstein
- · Replies 31 ·
Graduate Relativity and Quantum's multy universes
- mich
- · Replies 15 ·
Graduate What happens when you apply a force in space over infinite time?
- danben
- · Replies 14 ·
Where can I find information about time travel in relativity
- winchy
- · Replies 2 ·
Graduate Does a Rod's Size Change When Rotating at the Speed of Light?
- captain
- · Replies 2 ·
Graduate Matter-antimatter ship in GR clock paradox - fuel consumption
- malin
- · Replies 1 ·
Undergrad Does matter get destroyed or sent back in time inside a black hole?
- Champion
- · Replies 24 ·
Graduate Fitzgerald -Lorentz contraction
- mich
- · Replies 64 ·
Undergrad Can You Measure the Speed of Light in Water and Move Faster Than It?
- praharmitra
- · Replies 8 ·
Graduate Lorentz transformation, Einstein transformation,Lorentz-Einstein transformation
- bernhard.rothenstein
- · Replies 3 ·
Graduate Twin Paradox: Question on the Effects of Speed and Gravity on Time
- AaronTFoley
- · Replies 2 ·
Graduate Derivation of the Special Theory
- barredan232
- · Replies 1 ·
Graduate Does the theory of relativity include angular motion?
- rbeale98
- · Replies 3 ·
Graduate Relativity equation - calculating the algebraic limit
- skynelson
- · Replies 11 ·
Graduate What would happen if we rode on a light beam?
- mcmagicman530
- · Replies 2 ·
Graduate Special relativity simulation issue
- Tac-Tics
- · Replies 11 ·
Undergrad Equal and opposite electric fields?
- granpa
- · Replies 5 ·
Graduate Does Lorentz Contraction Affect Perceived Distances at Near-Light Speeds?
- duordi
- · Replies 17 ·
Graduate Does superposition hold for relativistic particles?
- granpa
- · Replies 7 ·
Graduate A question regarding relativity and information transport
- janakiraman
- · Replies 13 ·
Graduate Time dilation limit? (how much does time dilate at c )
- lavand
- · Replies 18 ·