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 Gravity & Magnetism: How Mass Interacts with Space-Time?
- Apophenia
- · Replies 1 ·
Graduate No definite viewpoint for the accelerating traveler?
- Alain2.7183
- · Replies 35 ·
Graduate Why is the EH of a BH considered to be expanding at c?
- Tracer
- · Replies 25 ·
Graduate Solving a Momentum Question: Struggling with Simple Cons?
- stallm
- · Replies 2 ·
Graduate Is Dingle's Critique of the Lorentz Transform Valid?
- exmarine
- · Replies 9 ·
Graduate Does Relativistic Mass Affect Weight and Gravity?
- greswd
- · Replies 11 ·
Graduate How to manipulate the determinant of metric tensor?
- jtceleron
- · Replies 2 ·
Graduate Length contraction problem of right angled triangle
- djsourabh
- · Replies 6 ·
Graduate Why acceleration is absolute in special relativity?
- GregAshmore
- · Replies 335 ·
Graduate Does the relativity of simultaneity imply a sort of determinism?
- RLutz
- · Replies 17 ·
Graduate Why doesn't composing Lorentz transforms give the relativistic velocity addition formula?
- exmarine
- · Replies 4 ·
Graduate What do we mean by pure gravity
- unrwar
- · Replies 2 ·
Graduate What is the Physical Meaning of Gravitational Wave Detection?
- TrickyDicky
- · Replies 29 ·
Graduate List of Special Relativity Paradoxes.
- greswd
- · Replies 12 ·
Graduate A problem from Sean Carroll's about Killing vectors
- shichao116
- · Replies 3 ·
Graduate Conflicting Transverse Doppler Shift Equations?
- greswd
- · Replies 4 ·
Graduate How does kinetic energy transfer when only the observer changes velocity?
- Skwint
- · Replies 14 ·
Graduate Twin clocks-is it acceleration?
- phyti
- · Replies 58 ·
Graduate Why Does Rotating the Michelson-Morley Apparatus Change the Time Delay?
- BareFootKing
- · Replies 1 ·
Graduate Cherenkov Radiation in Vacuum: Can Superluminal Particles Emit Light?
- e.chaniotakis
- · Replies 5 ·
Graduate Light energy, just like time, is relative?
- Aspchizo
- · Replies 5 ·
Graduate Gravity is a limitless supply of energy to inflaton field
- AlephClo
- · Replies 5 ·
Graduate Does the Starting Point Influence Time Dilation Observations?
- peterspencers
- · Replies 14 ·
Graduate Resolving the Twin Paradox in Relativity
- thehangedman
- · Replies 15 ·
Graduate Varying with respect to vierbein
- pleasehelpmeno
- · Replies 3 ·
Can we travel to the past in general relativity?
- bobby77
- · Replies 4 ·
Graduate No privileged frame of reference
- emd
- · Replies 21 ·
Graduate How do we mathematically define an inertial frame in GR?
- Kontilera
- · Replies 1 ·
Graduate Varying determinant of a metric
- pleasehelpmeno
- · Replies 22 ·
Graduate Contracting g^μνg_μν and contracting metric with tensor
- pleasehelpmeno
- · Replies 6 ·
Graduate Relativity Paradox: Is Moving at Speed of Light Possible?
- jaydnul
- · Replies 8 ·
Graduate Does a free falling charge radiate ?
- greswd
- · Replies 102 ·
Graduate Killing Vectors (question on Problem)
- Morgoth
- · Replies 6 ·
Graduate Time Dilation in Spinning Cylinder Room: Can We Break the Speed of Light?
- roshan2004
- · Replies 1 ·
Graduate Is the Twin Paradox a Logical Mistake in Time Dilation and Relativity?
- High Overlord
- · Replies 8 ·
Graduate Can metrics reveal flatness without computing the Riemann tensor?
- Morgoth
- · Replies 9 ·
Undergrad Can Matter Waves Travel Faster Than Light?
- Akshay_Anti
- · Replies 3 ·
Graduate Time dilation and mental computation in relativistic reference frames
- DIYMobileAudio
- · Replies 6 ·
Graduate Theory of Relativity VS. Relativity to placement
- SteveDave
- · Replies 4 ·
Graduate Do stationary masses in empty space attract each other?
- xlsdx
- · Replies 6 ·
Graduate Two observers. One closer to an event horizon.
- longcreepyhug
- · Replies 11 ·
Graduate Different Clock Rates Throughout Accelerating Spaceship
- 1977ub
- · Replies 110 ·
Graduate Is Poincare wrong about no preferred geometry?
- jmarshall
- · Replies 21 ·
Graduate If I acclerate and observe a photon, do I see the spin of the photon changing?
- jartsa
- · Replies 2 ·
Graduate Where do you think a black hole leads to, or what is inside of one?
- blackholefizix
- · Replies 1 ·
Graduate Light clock with spaceship moving vertical at .99c
- ebodet18
- · Replies 4 ·
Graduate Faster velocity than the speed of light?
- sydfremmer
- · Replies 30 ·
Graduate Time and space travel at light speed
- mike777
- · Replies 25 ·
Graduate Spacetime diagram - Twin paradox
- jaumzaum
- · Replies 41 ·
Graduate Does the magnetic field in relativity move at the same speed as the magnet?
- arydberg
- · Replies 2 ·
Graduate Rigorous definition of a family of observers in relativity
- WannabeNewton
- · Replies 4 ·
Graduate Do forces compose/superpose in special relativity?
- James MC
- · Replies 17 ·
Graduate Einstein postulates and the speed of light
- MHD93
- · Replies 56 ·
Graduate Does the twin paradox hold true for particles as well?
- Adrian07
- · Replies 17 ·
Graduate Logical Proof That Black Holes Can't Exist
- Spin-Analyser
- · Replies 3 ·
Graduate Can someone confirm that this is how time dilation works?
- chestycougth
- · Replies 2 ·
Graduate Is a Black Hole a Wormhole According to Poplawski's Theory?
- PeterDonis
- · Replies 10 ·
Graduate What is the principle of equivalence - gravitational vs inertial mass?
- SinghRP
- · Replies 16 ·
Graduate Hafele-Keating experiment: altitude and clock calibration concerns
- Didymus
- · Replies 4 ·
Graduate Why is the Reissner-Nordstrom Metric Not Considered a Vacuum Solution?
- gentsagree
- · Replies 7 ·
Graduate Testing Equivalence Principle: Prying Gravity From Inertia
- Celeritas02
- · Replies 3 ·
Undergrad Animation of spacetime curvature in general relativity
- A.T.
- · Replies 13 ·
Graduate Is the growth of black holes paradoxical?
- BitWiz
- · Replies 31 ·
Graduate Understand Special Relativity and Time paradox
- jaumzaum
- · Replies 406 ·
Graduate How does the event horizon of a blackhole know how to behave?
- Lino
- · Replies 9 ·
Undergrad Is E=mc2 About Converting Mass to Energy?
- big_bounce
- · Replies 14 ·
Graduate Why does dividing a cube increase its total surface area?
- HowardTheDuck
- · Replies 16 ·
Graduate Is dark matter the graviton or basis of spacetime?
- rdeanreaper
- · Replies 8 ·
Graduate Does the universe's total gravitational pull have a direction?
- brenan
- · Replies 2 ·
Graduate Time slowing down for someone traveling just under the speed of light
- mycotheology
- · Replies 13 ·
Graduate Simultaneous events - special relativity
- jaumzaum
- · Replies 4 ·
Graduate Shining a laser out of a train - What does the stationary
- mycotheology
- · Replies 3 ·
Undergrad Frames of reference for speed?
- yoyopizza
- · Replies 25 ·
Graduate Does the AdS radius-cosmological constant relation depend on spacetime dimensions?
- gentsagree
- · Replies 1 ·
Graduate Derivation of gauge condition in linearized GR
- WannabeNewton
- · Replies 5 ·
Graduate Is There a Hidden Universal Constant that Affects All Branches of Science?
- microedit
- · Replies 4 ·
Graduate Metric Properties of a Simple ds^2 Equation
- pleasehelpmeno
- · Replies 1 ·
Graduate Equilibrium temperature distribution in gravitational field
- Jano L.
- · Replies 10 ·
Graduate Physical model of measurement for affine geometry, dual
- bcrowell
- · Replies 6 ·
Graduate Relativity question - effects between moving and stationary particles?
- xxYOUKNOWMExx
- · Replies 3 ·
High School Is time a real dimension or just a human construct?
- Sabiancym
- · Replies 5 ·
Undergrad Can kinetic energy be added linearly?
- kbar1
- · Replies 1 ·
Graduate The speed of light in a gravitational field
- e2m2a
- · Replies 92 ·
Graduate Name and reference for current conservation theorem in differential geometry
- Jip
- · Replies 11 ·
Graduate Classical Fields and Newton's 2nd Postulate of Motion
- dr_k
- · Replies 27 ·
Graduate Derivation of Hawking temperature
- gentsagree
- · Replies 1 ·
Undergrad Time Dilation: Can You Chase Something Too Fast?
- i.h87
- · Replies 1 ·
Graduate Variation of the determinant of a metric tensor
- pleasehelpmeno
- · Replies 5 ·
Graduate How can the gradient of a scalar field be covarient?
- dEdt
- · Replies 40 ·
Graduate Einstein and Relativity: Uncovering the Origins of Length Contraction
- quicksilver123
- · Replies 17 ·
Graduate Does the Michelson-Morley Experiment Truly Disprove Ether?
- mark goldman
- · Replies 30 ·
Graduate Schwarzchild radius and escape velocity?
- qaovxtazypdl
- · Replies 7 ·
Graduate What motivated Einstein to start thinking about a General Theory of Relativity?
- jmoorhea
- · Replies 32 ·
Graduate When does a relativistic train actually start braking in this scenario?
- shlosmem
- · Replies 17 ·
Graduate Using 4-Gradient to Apply Function to 4-Vector
- chill_factor
- · Replies 7 ·
Graduate Are geons stable in classical GR and with non-Levi-Civita connections?
- Markus Hanke
- · Replies 3 ·
Graduate Determinant of the metric tensor
- LayMuon
- · Replies 10 ·
Graduate Does light have a frame of reference?
- tahayassen
- · Replies 4 ·
Graduate Equation for heat reflection force from a radiometer surface
- cosmic-omposer
- · Replies 1 ·
Graduate Big Bang singularity vs Black hole singularity
- quantafyre
- · Replies 9 ·