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 Solving a Relativity Problem: Two MAsses in Motion
- trichop
- · Replies 8 ·
Graduate Does homogeneity infer isotropism?
- Loren Booda
- · Replies 6 ·
Undergrad Converting Energy to Mass: Is it Possible?
- Mandelbrot
- · Replies 3 ·
Graduate The distance-dependent nature behind lorentz time-transformation
- Twukwuw
- · Replies 5 ·
Graduate How do you verify that v/c=pc/E?
- asdf1
- · Replies 5 ·
Graduate How to deal with the index in Einstein summation?
- yukcream
- · Replies 6 ·
Undergrad Is cheating going on in Relativity?
- Sam Woole
- · Replies 56 ·
Graduate What is the Folding Space Theory and its Potential Applications?
- Seeruk
- · Replies 10 ·
Graduate What happens to length contraction for angled motion?
- asdf1
- · Replies 2 ·
Graduate Proving Relativistic Kinetic Energy: (1/2)*(gamma)mv^2
- asdf1
- · Replies 6 ·
Graduate Simplifying Equations for Lorentz Boosts with Small Beta
- Jimmy Snyder
- · Replies 7 ·
Graduate Question from Schutz, A First Course in GR
- Jimmy Snyder
- · Replies 24 ·
Graduate Time Dilation and Differential Aging
- Sherlock
- · Replies 31 ·
Graduate Relativity and Energy Transfer via Radiation
- Swampeast Mike
- · Replies 7 ·
Graduate Question on Phenomenology of Einsteins Field Equations
- robousy
- · Replies 6 ·
High School Explaining time dilation to someone with limited calculus
- QuantumTheory
- · Replies 1 ·
Einstein And A Century Of Time
- ZapperZ
- · Replies 2 ·
Graduate What is the dual of a tensor and where does the -1/6 come from?
- yukcream
- · Replies 1 ·
Graduate Advice on GR book specific to my needs
- robousy
- · Replies 2 ·
Graduate Is the Speed of Light Affecting Relativistic Phenomena?
- asdf1
- · Replies 8 ·
Graduate The Black Hole in a Spatially Compact Spacetime
- Perspicacious
- · Replies 2 ·
Graduate Einstein's Clock Synchronization Convention
- Aether
- · Replies 108 ·
Graduate Relativistic contraction happens which way?
- IAN STINE
- · Replies 14 ·
Graduate Should the Special Relativity Principle be Reduced to a Tautology?
- Perspicacious
- · Replies 4 ·
Graduate Closed Universe Twins Paradox: No Acceleration?
- infinitus
- · Replies 5 ·
Undergrad Can the intersection point of two tilted sheets exceed the speed of light?
- nameta9
- · Replies 14 ·
Graduate Do gravity waves get bent by gravity?
- jim_990
- · Replies 13 ·
Undergrad Does the speed of light change with the source's motion?
- Avgiu
- · Replies 4 ·
Undergrad Curtailed length and the twin paradox
- Quan Chi
- · Replies 4 ·
Graduate Do Primes in Lorentz Transformations Differ from Relativistic Effect Equations?
- neopolitan
- · Replies 10 ·
Graduate Hawking, new theory on information paradox right or qwrong?
- berty
- · Replies 3 ·
Graduate Why does tensor contraction reduce rank by 2?
- yukcream
- · Replies 6 ·
Graduate If the universe expands forever, what was the big bang and where did it come from?
- zelldot
- · Replies 6 ·
Graduate GRTensorJ - Books (physics/0509108)
- robphy
- · Replies 12 ·
Graduate Why is gravity assumed to be a wave
- jim_990
- · Replies 5 ·
Graduate Coordinate transformations and acceleration
- Trilairian
- · Replies 4 ·
Graduate What is the correct derivation of the relativistic rocket equation?
- StatusX
- · Replies 11 ·
Graduate Is gravity just the temporal gradients effect
- jim_990
- · Replies 6 ·
Graduate Is k-calculus a viable alternative to general relativity?
- Sir_Deenicus
- · Replies 4 ·
Graduate What Are Contravariant and Covariant Tensors in Relativity?
- yukcream
- · Replies 2 ·
Graduate Sir Hermann Bondi (1919 - 2005)
- robphy
- · Replies 1 ·
Collecting errors and suggestions for my physics website
- pmb_phy
- · Replies 22 ·
Graduate What is the Hodge dual transformation and how does it work in relativity?
- yukcream
- · Replies 3 ·
Undergrad Accelerated charges loose energy
- vidmar
- · Replies 2 ·
High School What are gravitational lenses?
- kiru
- · Replies 4 ·
Undergrad Gravity Probe B Results: Preliminary Info
- Paulanddiw
- · Replies 3 ·
Undergrad Curvature of light and its effect on reality
- Jeremy
- · Replies 3 ·
Undergrad Get Formula for Rolf's 24-Hour Mars Trip
- Reaptor
- · Replies 4 ·
Graduate Question 2: Relative events and space-time intervals
- yukcream
- · Replies 1 ·
Graduate The gravition and Einstein's equivalence principal
- StatusX
- · Replies 16 ·
Graduate Thoughts on Einstein’s Theories
- nuke_c
- · Replies 17 ·
Undergrad Time travel is posibble or not ?
- ngkamsengpeter
- · Replies 2 ·
Graduate Why does the SR equation predict zero photon mass if c is lightspeed?
- yu_wing_sin
- · Replies 103 ·
Graduate Shear stress energy tensor in GR
- blue_sky
- · Replies 4 ·
Graduate Einstein's train and lightning: relativity of simultaneity
- robert Ihnot
- · Replies 1 ·
Graduate Gravitational field of a moving object
- Ahmes
- · Replies 11 ·
Graduate Through what medium does EM propagate in empty space?
- turbo
- · Replies 73 ·
Graduate What Forms of Energy Could Exist if All Matter Transformed into Energy?
- vidmar
- · Replies 2 ·
Graduate Hypothetical; what would a rocket look like to an outside observor if
- Shanos
- · Replies 5 ·
Graduate Rotating a 2-light-second pencil in space: can observer A rotate the axis?
- Yaaks
- · Replies 12 ·
Graduate What happens to your mirror reflection at 0.99c?
- fusi0n
- · Replies 13 ·
Undergrad Can a 2D being find the third dimension using circle measurements?
- sandesh trivedi
- · Replies 35 ·
Is there a thread about the speed of light slowing down?
- Jimmy Snyder
- · Replies 6 ·
Graduate What is relativity and how does it affect time, mass and velocity?
- heaven eye
- · Replies 4 ·
Finding Original Relativity Documents Online
- Mozart
- · Replies 11 ·
Graduate Gauge transformations in electromagnetic potentials and fields
- francisco
- · Replies 1 ·
Graduate Four-vectors, Minkowsky spacetime.
- norbert
- · Replies 3 ·
Graduate Spacetime intervals again - still figuring out the formula
- NanakiXIII
- · Replies 69 ·
Undergrad How do the two postulates of special relativity reconcile with velocity addition?
- rocketboy
- · Replies 7 ·
Undergrad Would it be possible to see into the past
- derek yau
- · Replies 10 ·
Graduate Is the Langevin Twins Paradox Validated by Other Experiments?
- Yehuda
- · Replies 34 ·
Graduate Is the Redshift of Light at a Black Hole's Surface Infinite?
- Macro
- · Replies 16 ·
Graduate Random questions + Geometric multidimensional patterns.
- Temporarily Blah
- · Replies 7 ·
Graduate The speed of light in a vacuum
- francisco
- · Replies 2 ·
Graduate How do I calculate tidal forces from gravitational potential derivatives?
- Allday
- · Replies 2 ·
Graduate The nature of space, time and spacetime
- playmesumch00ns
- · Replies 3 ·
Graduate What do the twins observe during the twin paradox trip?
- Enos
- · Replies 12 ·
Graduate How Does Relativity Apply in Rotating Frames of Reference?
- mikeu
- · Replies 15 ·
Critique of light clock derivation of time dilation
- francisco
- · Replies 1 ·
Undergrad Either my professor made a boo-boo or I don't get it(regarding E=mc^2)
- schattenjaeger
- · Replies 6 ·
Graduate Deriving Relativistic Mechanics Equation: \gamma
- amcavoy
- · Replies 5 ·
Graduate Light Bending Effect in General Relativity: Understanding Gravitational Lensing
- Spin_Network
- · Replies 2 ·
Undergrad Relativistic energy and matter
- Zelos
- · Replies 2 ·
Undergrad Relativistic length contraction
- asdf1
- · Replies 9 ·
Undergrad Is Earth's Gravitational Field Zero at 900km Altitude?
- samaank
- · Replies 4 ·
Graduate Is Time the Same for All Observers in Different Dimensions?
- scilover89
- · Replies 3 ·
Graduate Relativistic velocity addition at 60 degree angle
- pigasuspig
- · Replies 5 ·
Graduate Could infinite gravity waves from the big bang explain quantum entanglement?
- magi
- · Replies 6 ·
Graduate In this section explaining relativity
- asdf1
- · Replies 11 ·
Graduate Time in the Lorentz transformation
- asdf1
- · Replies 6 ·
Graduate What happens to time when a body reaches the speed of light?
- Nirav Chavda
- · Replies 4 ·
Graduate Is Relativistic Mass Still Relevant in Modern Physics Discussions?
- Aer
- · Replies 212 ·
Undergrad So two ships leave earth in opposite directions
- pigasuspig
- · Replies 6 ·
Relativity challenge website and attempts to disprove Einstein
- mruncleramos
- · Replies 4 ·
Graduate Can squeezed light bubbles transmit FTL without causality violation?
- Iridium
- · Replies 7 ·
Graduate Did Einstein derive E = mc²?
- vincentm
- · Replies 29 ·
Graduate A better way to imagine the time space continuum.
- the_truth
- · Replies 6 ·
High School Why is the speed of light independent of the observer's motion?
- LedZep_Kamal
- · Replies 18 ·
Graduate Linear vs Sagnac: Examining Arrival Time Differences
- TheAntiRelative
- · Replies 16 ·
Graduate Is the Hafele-Keating experiment really reliable?
- Yehuda
- · Replies 5 ·