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 A mechanism for Mach's Principle?
- johne1618
- · Replies 1 ·
Graduate Inertial frames and related predictions
- spaghetti3451
- · Replies 3 ·
Graduate Increase of Mass With Relative Velocity Proven?
- Islam Hassan
- · Replies 14 ·
Graduate Doesnt information travel faster than light in case of black holes?
- rahuljayanthb
- · Replies 4 ·
Graduate Euclidean Quantum Gravity and its relevance
- Fractalismus
- · Replies 1 ·
Graduate Speed of light = oo mass = black hole?
- MassiveMass
- · Replies 39 ·
Graduate Geometric Understanding of Tensors.
- dpa
- · Replies 6 ·
Graduate Does anyone else question general relativity?
- vdawg
- · Replies 1 ·
Graduate How does general relativity explain the rotating bucket with Mach's principle?
- exponent137
- · Replies 9 ·
Graduate ST Does Spacetime Actually Curve?
- ginarific
- · Replies 29 ·
Graduate Vacuum Energy in SR: A Relativity Question
- kcdodd
- · Replies 3 ·
Graduate Does Wikipedia's time dilation space travel example ignore turnaround effects?
- kornelma
- · Replies 5 ·
Graduate Does FTL Travel Really Lead to Time Travel?
- frakie
- · Replies 11 ·
Graduate What is a principal null direction
- purakanui
- · Replies 5 ·
Graduate Could Maximum Gravity Explain Curved Space Phenomena?
- -Job-
- · Replies 11 ·
Graduate Twins Paradox - but with a different spin
- qualiaoftao
- · Replies 36 ·
Graduate The Elegance and Complexity of Theories Beyond Special and General Relativity
- RiddlerA
- · Replies 18 ·
Graduate Instantaneous communication, Aharanov-Bohm and the Coulomb Gauge
- maverick_starstrider
- · Replies 1 ·
Graduate Why isn't velocity a dimension in SR?
- vinven7
- · Replies 3 ·
Undergrad Does a clock on a fast-moving shuttle record less time than one on Earth?
- apinkpwny
- · Replies 34 ·
Graduate Correlating/deriving space time bend with law of gravitation
- San K
- · Replies 2 ·
Undergrad How To Travel at The Speed of Light
- JtValentine
- · Replies 5 ·
Graduate SR - car with headlights - new twist
- elegysix
- · Replies 5 ·
Graduate 4-velocity transforms as a vector?
- haushofer
- · Replies 9 ·
Graduate 0.0018 degrees/year due geodetical effect
- Alvydas
- · Replies 2 ·
Graduate Energy momentum of linearized gravity.
- IRobot
- · Replies 4 ·
Graduate Measuring curvature of space around a star
- lavinia
- · Replies 8 ·
Graduate How can a black hole evaporate instantly if speed of gravity is c?
- kamenjar
- · Replies 30 ·
Undergrad Why the speed of light in the equation?
- jack616
- · Replies 13 ·
Graduate Time dilation in minkowski diagrams
- center o bass
- · Replies 12 ·
Universal Rate of Movement = Time
- jetstone
- · Replies 2 ·
Graduate Time dilation and Length contraction in Saddle Geometries
- kmarinas86
- · Replies 5 ·
Graduate Traveling parallel to a ray of light through a gravitational field
- mrspeedybob
- · Replies 8 ·
Graduate Lorentz Boosts in Group Representation (from Weinberg)
- Elwin.Martin
- · Replies 4 ·
High School Does time dilation affect the relative motion that causes it?
- swerdna
- · Replies 10 ·
Graduate What do I see if I was a particle at speed moving by a spaceship?
- fbs7
- · Replies 4 ·
Graduate Is Mass the Absolute Frame of Reference in the Universe?
- RiddlerA
- · Replies 36 ·
Undergrad Why do we still use special relativity if general relativity is more correct?
- lmoh
- · Replies 2 ·
Graduate Does gravity travel at light speed, faster, or instantaneously?
- farmer
- · Replies 41 ·
Graduate Timelike geodesics in Schwarzschild Metric.
- Nilupa
- · Replies 2 ·
Graduate Time dilation vs effects of high speed motion
- cookes3
- · Replies 1 ·
Undergrad What is the evidence for and against block universe theory?
- Jm84
- · Replies 14 ·
Graduate Covariant derivative of coordinates
- jfy4
- · Replies 3 ·
Graduate Light's direction of travel, bending, and speed
- bahamagreen
- · Replies 2 ·
Graduate Does Time Equate to Motion in the Theory of Relativity?
- twitch1
- · Replies 11 ·
Undergrad Is the Earth's gravity actually caused by its acceleration?
- joan pendleto
- · Replies 4 ·
Graduate Does radioactivity suffer time dilation?
- singhvi
- · Replies 9 ·
Graduate How does LQG handle discreteness?
- Vorde
- · Replies 1 ·
Graduate How Does Momentum in Special Relativity Connect with Quantum Mechanics?
- curiouser84
- · Replies 1 ·
Graduate Levi-Civita Symbol: Understanding Rank 8 Tensor Properties
- qinglong.1397
- · Replies 6 ·
Graduate Spacetime Interval in non-inertial frames.
- The1337gamer
- · Replies 7 ·
Graduate Can the speed limit be higher than light?
- Super Luminal
- · Replies 27 ·
High School How much faster does time pass in space in comparison to that on Earth?
- Ralphonsicus
- · Replies 6 ·
Graduate Can quantum mechanics explain the relationship between mass and energy?
- Algren
- · Replies 23 ·
Graduate Decoding Mercury's Anomalous Precession: Discovering Pre-GR Explanations | [url]
- dr_venturi
- · Replies 1 ·
Graduate No. of Independent Components of Riemann Tensor in Schwartzchild Metric
- ObsessiveMathsFreak
- · Replies 1 ·
Undergrad What does the time coordinate represent in spacetime?
- constantinou1
- · Replies 19 ·
Graduate Alternative derivations of time dilation
- elegysix
- · Replies 3 ·
Graduate Headlights reflected in a mirror at relativistic speed
- elegysix
- · Replies 29 ·
Undergrad Where can I find the formula for the relavistic rocket equation?
- Albertgauss
- · Replies 3 ·
Graduate Did CERN neutrino experiments measure speeds faster than light?
- Noja888
- · Replies 1 ·
Graduate What Lies Inside a Black Hole?
- Jim Graham
- · Replies 26 ·
Graduate 1 = v^2 + t^2? and look at spacetime as velocity as x axis, time as y axis.
- darkhorror
- · Replies 4 ·
Graduate Why does Born keep referring to the luminiferous ether in his 1920 relativity book?
- khil_phys
- · Replies 6 ·
Graduate Why does gravity stay attractive if time runs backwards?
- A-wal
- · Replies 560 ·
Graduate Is Our Understanding of the Space of Einstein Metrics Limited?
- Naty1
- · Replies 2 ·
Graduate How can objects in 4-D spacetime interact after experiencing time dilation?
- Snip3r
- · Replies 4 ·
Graduate Bell's Spaceship Paradox - Shouldn't the thread stay connected?
- riverway
- · Replies 10 ·
Graduate Does Bob see an object that fell into a black hole before he started watching?
- Smoggyrob
- · Replies 38 ·
Graduate Time in Physics 4-Vectors: Is Time Included in the Position Four-Vector?
- jaketodd
- · Replies 6 ·
Undergrad Gravitational waves and Tidal forces
- alvarogz
- · Replies 11 ·
Graduate Is the Arthur Beiser Logic in Concepts of Modern Physics Appropriate?
- bibhu1984
- · Replies 12 ·
Graduate Relativistic angular momentum and cyclic coordinates
- maverick_starstrider
- · Replies 3 ·
Graduate Why hasn't quantum gravity been unified after 60 years?
- hollowsolid
- · Replies 18 ·
Graduate Can someone explain the logic behind Einstein's Mirrors Experiment?
- Mike Hobbs
- · Replies 26 ·
Graduate Grazing collision of two black holes
- Antiphon
- · Replies 2 ·
Graduate Speed of light becomes Infinity and Zero
- RiddlerA
- · Replies 45 ·
Graduate Euler-Lagrange equations for geodesics with arbitrary parameter
- noamriemer
- · Replies 1 ·
Graduate Relativity of rotating system(s)
- S.R.Wilton
- · Replies 34 ·
Graduate What is varing in the variational principle of GR
- spocchio
- · Replies 1 ·
Graduate Lorentz Contraction/ Simultan Problem
- Albertgauss
- · Replies 4 ·
Graduate Solving D'Inverno Ch 19 Problem 19.5
- TerryW
- · Replies 2 ·
Graduate In curved space-time, what causes gravitational acceleration?
- ft_c
- · Replies 23 ·
Graduate Understanding Relative Velocity and the Speed of Light
- jumpin'jack
- · Replies 6 ·
Graduate Lie Derivatives and Parallel Transport
- PhizzyQs
- · Replies 4 ·
Graduate Does a beam rider see a distant clock's hands move?
- Taco Picasso
- · Replies 5 ·
Graduate What is the Best Book to Learn Topology for General Relativity?
- world line
- · Replies 4 ·
Graduate Definition of Negative Pressure in the Stress-Energy Tensor
- putongren
- · Replies 20 ·
Graduate Gravitational potential energy storage location
- jpo
- · Replies 46 ·
Graduate What is the Geometrical Meaning of the Einstein Tensor?
- TrickyDicky
- · Replies 8 ·
High School Can you touch yourself if you run around a tree at light speed?
- joffess
- · Replies 13 ·
Undergrad Twin paradox and time dilation
- X-rays
- · Replies 1 ·
Graduate If Geodesic are light cone, how can be test particle trajectiories
- spocchio
- · Replies 5 ·
Graduate Thought experiment for general rel., I can't remember how it goes
- ericqb
- · Replies 3 ·
Graduate Does the producing process of gravitational waves produce gravitation?
- climatos
- · Replies 12 ·
Undergrad E=MC^2 Here,say we want to find the energy of a single
- AakashPandita
- · Replies 9 ·
Graduate Proof of relativistic energy/mass to grow to infinity for v approaching c?
- Vincentius
- · Replies 10 ·
Graduate Why Do Reference Frames Yield Different Time Intervals in Special Relativity?
- Lucy Yeats
- · Replies 13 ·
Graduate The old car headlights at the speed of light scenario. conceptual questions
- elegysix
- · Replies 4 ·
Graduate Is it possible that Mass is the /same thing/ as curved spacetime?
- tgm1024
- · Replies 19 ·