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 Doppler Effect and absolute simultaneity
- bernhard.rothenstein
- · Replies 1 ·
Graduate Energy-momentum for a point particle and 4-vectors
- 1effect
- · Replies 65 ·
Graduate Two questions about the ADM formalism
- kdv
- · Replies 11 ·
Graduate Solve Absolute Simultaneity with Einstein's Procedure
- bernhard.rothenstein
- · Replies 8 ·
Graduate Where Can I Find a Review of Relativistic Thermodynamics?
- touqra
- · Replies 6 ·
Graduate Electric field from relativistic beam and past light cone charge distribution
- Rich L.
- · Replies 2 ·
Graduate FTL travel: Do you think we can do it?
- leftyguitarjo
- · Replies 9 ·
Graduate Confusion about signal latency vs true relativity
- DocZaius
- · Replies 11 ·
Graduate Space-Time Curve in Black Holes: What Does It Mean?
- Prasanna Suman
- · Replies 2 ·
Graduate Energy-Momentum Tensor: Exploring Einstein-Hilbert Action
- lion8172
- · Replies 1 ·
Graduate Show Lorentz invariance for Euler-Lagrange's equations- how?
- Bapelsin
- · Replies 4 ·
Graduate Why do people insist on the graviton
- Denton
- · Replies 2 ·
Undergrad Hypothesis about speed of light
- DonnieD
- · Replies 22 ·
Graduate Unraveling the Concept of Relativity: Understanding Light and Time
- Gear300
- · Replies 5 ·
Undergrad Relativity Questions: Answers for the Beginner
- Owen-
- · Replies 3 ·
Graduate Gravity, cause or effect of time dilation?
- petm1
- · Replies 9 ·
Undergrad Why Does the Speed of Light Remain Constant When Moving in an Airplane?
- sirissa
- · Replies 3 ·
Graduate Is there a relation between GCT and Lorentz invariance?
- kdv
- · Replies 2 ·
Graduate How infinite does time get by gamma
- zZhang
- · Replies 3 ·
Graduate Understanding Notation in Hawking and Ellis: V_{(c;d)} and V_{[c;d]}
- robousy
- · Replies 2 ·
Graduate A question concerning the lorentz transformation derivation
- ehj
- · Replies 21 ·
Graduate How does general relativity explain why objects fall toward Earth?
- Xeinstein
- · Replies 14 ·
Graduate How to calculate spacetime curvature from a given mass
- Kaleetos
- · Replies 3 ·
Graduate The classical aether vs. the modern vacuum
- Maxwell's Beard
- · Replies 57 ·
Graduate Apparent position and light travel time
- gonegahgah
- · Replies 77 ·
Graduate Question on Special Relativity.
- BathingGrape
- · Replies 18 ·
Interesting new take on gravitation?
- shalayka
- · Replies 4 ·
Graduate Rotating Spacetime - a question
- neopolitan
- · Replies 2 ·
Graduate Why does light have invarient speed?
- Xeinstein
- · Replies 3 ·
Graduate GR/SR Space-Time: Explaining Gravitation and its Geodesics
- Michamus
- · Replies 1 ·
Graduate Plotting space-time curvatures as curved 2D-surfaces
- TheMan112
- · Replies 9 ·
Graduate An illustration of relativity with rulers and clocks
- JesseM
- · Replies 8 ·
Graduate Massive objects moving too fast
- Coughlan
- · Replies 57 ·
Graduate Understanding ct: Time vs Distance on Spacetime Diagrams
- DocZaius
- · Replies 25 ·
Undergrad Gravity and the earth's geometry
- sutupidmath
- · Replies 3 ·
Graduate Finding a Textbook for General Relativity and String Theory
- Wannabeagenius
- · Replies 6 ·
Graduate What Happens When a Rod Is Pushed Beyond Its Signal Propagation Speed?
- Zhivago
- · Replies 1 ·
Graduate Does my spaceship accelerate forever?
- kawikdx225
- · Replies 17 ·
Graduate Time: The Measurement of the Transfer of Energy
- tennismike22
- · Replies 5 ·
Graduate Deriving a function from Schwarzschild metric to show singularity at r=0
- blp
- · Replies 4 ·
Graduate Is Einstein's Explanation of General Relativity Self-Contradicting?
- mitesh9
- · Replies 19 ·
Graduate Is Relativity Considered a Gauge Theory?
- Jim Kata
- · Replies 1 ·
Graduate Black Hole Existence: Questions Answered
- Oliver981
- · Replies 4 ·
Graduate Does Clock Speed Vary with Gravitational Potential Inside a Spherical Cavity?
- Xeinstein
- · Replies 13 ·
Graduate How close to light speed can you theoretically get?
- Meatbot
- · Replies 16 ·
Graduate Parallel transport approximation
- jostpuur
- · Replies 1 ·
Graduate Is Gravity Really Linked to Mass or Something More Complex?
- Denton
- · Replies 6 ·
Undergrad A noob question about relativity.
- sei6i
- · Replies 9 ·
Graduate Derivative of metric and log identity
- robousy
- · Replies 11 ·
Graduate What Two Speed Measurements Do Observers in Relative Motion Always Agree On?
- Lillyotv
- · Replies 9 ·
Graduate Finding Geometry of Near-Extremal D3 Brane | Schwarzschild in 5D
- Pacopag
- · Replies 4 ·
Graduate How Does Time Travel Through Wormholes Violate Causality?
- Northprairieman
- · Replies 1 ·
Graduate Why does time dilation from a light clock apply to all clocks?
- ehj
- · Replies 3 ·
Graduate Elapsed time on accelerating clock
- Point Conception
- · Replies 5 ·
Graduate Why Was the Big Bang Not a Black Hole?
- scott haig
- · Replies 14 ·
Graduate Understanding the Units in Relativistic Momentum Calculations
- jk4
- · Replies 3 ·
Undergrad Information for the uninformed
- James23
- · Replies 20 ·
Undergrad Noob with a question about lightspeed travel.
- JikeSpingleto
- · Replies 7 ·
Graduate Adjoint of functional derivative in superspace
- HenryGomes
- · Replies 1 ·
Graduate Non-standard clock synchronization
- bernhard.rothenstein
- · Replies 10 ·
Undergrad Is the Relative Speed of Light Constant?
- jjaji
- · Replies 12 ·
Undergrad Understanding the Train Experiment: Explaining Observers and Time Perception
- allebone
- · Replies 50 ·
Graduate Is the Aether Truly Attached to Earth?
- hartlw
- · Replies 12 ·
Graduate Deriving the line element in homogenous isotropic space
- TheMan112
- · Replies 1 ·
Graduate Conventionality and clock symchrnization
- bernhard.rothenstein
- · Replies 4 ·
Graduate Simple problem driving me nuts :-)
- Fredrik
- · Replies 4 ·
Graduate Does a Spinning Cylinder Affect Rocket Acceleration and Energy Conservation?
- yuiop
- · Replies 27 ·
Graduate The Villain's Fate: Alive or Dead?
- Adam Lewis
- · Replies 4 ·
Undergrad What is the required energy for reaching 99.99999c velocity?
- maxwilli06
- · Replies 5 ·
Undergrad What Is the Importance of Understanding the 4th Dimension?
- _Mayday_
- · Replies 5 ·
Graduate Colliding rotating black holes
- TheMan112
- · Replies 3 ·
Graduate Can a light spot on a distant wall travel faster than light?
- ABHIdAVIATOR
- · Replies 5 ·
Graduate Learn GR: Mathematics Required for General Relativity
- darkSun
- · Replies 2 ·
Graduate Local acceleration experienced by observer
- gordonblur
- · Replies 10 ·
Undergrad Losing gravitational potentional energy
- Tachyonie
- · Replies 5 ·
Graduate Understanding the Validity of Relativity: Questioning and Learning
- Joanna Dark
- · Replies 46 ·
Graduate Angular momentum and quantum spin
- touqra
- · Replies 1 ·
Graduate Can relativistic abberation be observed in quasar jets?
- W.RonG
- · Replies 5 ·
Graduate Light moves at C from all frames of references?
- Bigman
- · Replies 9 ·
Graduate Energy-mom tensor of charged dust (homogeneous and isotropic)
- smallphi
- · Replies 1 ·
Graduate Consensus about Van Flandern's ideas on speed of gravity?
- hkyriazi
- · Replies 53 ·
Graduate Proper time of accelerated clocks
- yuiop
- · Replies 18 ·
Graduate Question on traveling spaceships
- SteyrerBrain
- · Replies 19 ·
Graduate Emission/Absorption and electron orbits
- fourdoughnut
- · Replies 14 ·
Undergrad Speed of Light and Flash Light
- uprootedferre
- · Replies 2 ·
Graduate Deriving the Einstein ring radius formula with light bending
- adwbizi1
- · Replies 1 ·
Graduate Radial geodesic distance with Schwarzschild's solution
- TheMan112
- · Replies 4 ·
Graduate I have 2 questions about relativity
- hrishikesh
- · Replies 6 ·
Graduate Reverse-tracing Einstein's field equation
- TheMan112
- · Replies 11 ·
Graduate How Large Must a Spark Chamber Be to Qualify as an Inertial Frame?
- Ed Quanta
- · Replies 1 ·
Graduate How do I find the line element on a torus?
- robousy
- · Replies 2 ·
Graduate Calculating Christoffel symbols for a spherical shell in 2-space
- TheMan112
- · Replies 10 ·
Graduate Is Synchronizing Clocks at Different Positions Neglecting Light Travel Delays?
- ehj
- · Replies 7 ·
Graduate Black holes and the time issue
- Tachyonie
- · Replies 2 ·
Graduate Educational value of spacetime diagrams
- Dale
- · Replies 16 ·
High School Can Anything Travel Faster Than Light - Explained Simply
- _Mayday_
- · Replies 65 ·
Graduate Special Relativity, 2nd postulate, and a dilemma
- W.RonG
- · Replies 6 ·
Graduate From Lorentz transformatios to Bondi's approach
- bernhard.rothenstein
- · Replies 7 ·
Graduate Is the Universe a Singular Entity with Time as an Illusion?
- getodechoppa
- · Replies 1 ·
Graduate How Does Kaluza-Klein Theory Separate Classical and Quantum Equations of Motion?
- MikeL#
- · Replies 13 ·