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
Undergrad How Einstein believed that space is curved?
- FrancisClinton
- · Replies 3 ·
Graduate Double covariant derivative of function of scalar
- Prafulla Bagde
- · Replies 1 ·
Undergrad Resources for applying Lorentz transforms and distribution functions to problems
- Reed Kartye
- · Replies 4 ·
Graduate How Does Einstein's Corner Term Challenge 5D General Relativity?
- MikeL#
- · Replies 2 ·
Graduate Is Lorentz Contraction Specious for Photon Traversal Time?
- einswine
- · Replies 11 ·
Graduate Witness the Sky of an Accelerated Black Hole
- jartsa
- · Replies 7 ·
Graduate De Sitter space, basic questions
- binbagsss
- · Replies 37 ·
Graduate Why Don't Probes Approach Each Other at 1.5c in Relativity?
- TheScienceGuy
- · Replies 22 ·
Graduate Does time pass at different rates or do clocks just tick differently?
- Berenices
- · Replies 11 ·
Graduate Are Gravity Waves Distortions of Space-Time That Create Gravitons?
- Gal
- · Replies 4 ·
Graduate Why don't the laws of physics hold in non-inertial frames?
- Krishankant Ray
- · Replies 33 ·
Graduate Charged particle in uniform electric field across reference frames
- mairzydoats
- · Replies 27 ·
Graduate Is Gravity a Force or the Deformation of Space?
- Suppaman
- · Replies 1 ·
Undergrad Black Holes - Spaghetification countered by time dilation?
- #Thomas#
- · Replies 14 ·
Insights Does Gravity Gravitate? Part 3 - The Wave - Comments
- PeterDonis
- · Replies 16 ·
Undergrad Why is E=MC^2 such a neat and simple formula?
- Slyster
- · Replies 8 ·
Graduate Could a massive gravitational field influence the speed of light?
- Edriven
- · Replies 3 ·
Graduate Time dilation - Is the time between events longer or shorter
- bookerdewitt
- · Replies 12 ·
Graduate Can objects contract faster than the speed of light?
- valentin mano
- · Replies 19 ·
Graduate Why does Mercury have an elliptical orbit?
- TimeRip496
- · Replies 4 ·
Undergrad Why do two stationary observers disagree on simultaneity?
- DAC
- · Replies 15 ·
Graduate Creating Realistic CTCs in GR: Is it Possible?
- tzimie
- · Replies 5 ·
Graduate Basis vectors of Minkowski space
- sunrah
- · Replies 11 ·
Undergrad What does E=mc² really mean when burning wood?
- Esfand Yar Ali
- · Replies 2 ·
Insights Does Gravity Gravitate? Part 2 - Comments
- PeterDonis
- · Replies 30 ·
Graduate Does time dilation reverse instantly when objects stop moving relativistically?
- giograf
- · Replies 11 ·
Graduate Do you need covariant differentiation in SR with non-Cartesian coordinates?
- dyn
- · Replies 3 ·
Graduate Second postulate of SR quiz question
- loislane
- · Replies 208 ·
Graduate Understanding Einstein's Derivation of EM Transformations
- greswd
- · Replies 7 ·
Graduate Can Energy-Mass really be conserved ?
- Shinyoung Noh
- · Replies 25 ·
Graduate Can a star and planet interact gravitationally through a wormhole?
- Ryan Reed
- · Replies 4 ·
Graduate If a photon's time has stopped, how can it move?
- Fowler
- · Replies 19 ·
Graduate Tidal Forces in Accelerating Frames
- jartsa
- · Replies 4 ·
Undergrad How to add velocity through space and velocity through time to equal c
- Starlover
- · Replies 6 ·
Graduate Why can't light escape a black hole if light always travels at c?
- flyingace
- · Replies 4 ·
Graduate Why does adding an r³ term model Mercury's relativistic precession?
- edguy99
- · Replies 6 ·
Graduate Mechanism to Prevent Mass Increase from Information Dumping into Black Holes
- jartsa
- · Replies 7 ·
Graduate Finding Function that Vanishes Only When x^mu = y^mu
- welcomeblack
- · Replies 9 ·
Graduate Are frames in physics necessary?
- pervect
- · Replies 51 ·
Graduate Sign of Kretschmann Scalar in Kerr Metric
- m4r35n357
- · Replies 6 ·
Graduate Non-Static Spacetime: Is It an Approximation?
- epovo
- · Replies 6 ·
Graduate Gravitational Lock in GR: Earth-Venus Positioning
- tzimie
- · Replies 4 ·
Graduate A problem with polar coordinates and black hole
- Harel
- · Replies 21 ·
Graduate Do different charts on a 2-sphere have different metric formulas?
- shereen1
- · Replies 2 ·
Graduate Questions After Reading "The Beginning of Infinity" by David Deutsch
- TheTuringTester
- · Replies 12 ·
Graduate Laws of physics in noninertial frames
- bcrowell
- · Replies 4 ·
Graduate GR Schutz: Why r Must Decrease in Black Hole Section?
- Harel
- · Replies 2 ·
Insights How Fast Do Changes in the Gravitational Field Propagate? - Comments
- bcrowell
- · Replies 18 ·
Graduate Gravity's Influence on 2 Isolated Hydrogen Atoms
- The_Cuckoo
- · Replies 9 ·
Graduate Distance function in Riemannian normal coordinates
- shooride
- · Replies 4 ·
Undergrad How do you enter a closed timelike curve?
- novella
- · Replies 4 ·
Graduate Can black holes grow if nothing can enter them?
- sillycow
- · Replies 45 ·
Insights Does Gravity Gravitate? - Comments
- PeterDonis
- · Replies 9 ·
Graduate Why does light have a speed at all?
- RUKiddin
- · Replies 28 ·
Graduate Lorentz invariant integral measure
- DOTDO
- · Replies 7 ·
Graduate Do Bill and Nancy see each other's mass increase at relativistic speeds?
- Holometer
- · Replies 1 ·
Graduate The definition of a field supposes simultaneity?
- nomadreid
- · Replies 3 ·
Graduate Direct Product vs Tensor Product
- dman12
- · Replies 3 ·
Graduate How Does Chirality Relate to Angular Momentum in Einstein-Cartan Theory?
- michael879
- · Replies 7 ·
Undergrad Does Destroying an Atomic Clock Really Stop Time?
- Heretoignore
- · Replies 14 ·
Graduate Can you use the Lorentz transform for a function of time?
- barriboy
- · Replies 7 ·
Graduate Time dilation in an elliptical orbit
- Keermalec
- · Replies 11 ·
Graduate Single chart which covers entire [itex]S^1\times R[/itex] manifold
- Ravi Mohan
- · Replies 46 ·
Graduate Direction of E field transforms like direction of a stick
- bcrowell
- · Replies 9 ·
Graduate Derive Reissner Nordstrom Eq. (8) Explained
- darida
- · Replies 3 ·
Graduate Index Gymnastics: 2 More Questions
- dyn
- · Replies 4 ·
Undergrad E=mc2: What is the Term for this Energy?
- Keermalec
- · Replies 4 ·
Graduate Do boundary construction methods agree on Schwarzschild and Friedmann singularities?
- bcrowell
- · Replies 4 ·
Graduate Discussion on tensor dimensions
- Orodruin
- · Replies 38 ·
Undergrad Time dilation on the surface of the sun
- Andrew Wright
- · Replies 8 ·
Graduate Equation of motion from the action
- Emilie.Jung
- · Replies 12 ·
Graduate What is the volume of the universe using a spacetime metric approach?
- RyanH42
- · Replies 14 ·
High School Do photons experience Bell test measurements as simultaneous due to time dilation?
- pervirtuous
- · Replies 1 ·
Graduate Do Alice and Charlie see each other receding at less than c when shot apart at 0.9c?
- DiracPool
- · Replies 4 ·
High School Does gravity depend on mass alone or also on size?
- Kev.
- · Replies 9 ·
Graduate How does the Doppler effect affect data from a relativistic spacecraft?
- MostlyHarmless
- · Replies 2 ·
Graduate Relativity and conservation laws
- mokeejoe5
- · Replies 38 ·
Graduate What is the Kretschmann Invariant?
- dyn
- · Replies 4 ·
Graduate Time Dilation: Twins Separated by Black Hole's Gravity
- Dynamotime
- · Replies 2 ·
Insights Why Does C Have a Particular Value, and Can It Change? - Comments
- bcrowell
- · Replies 23 ·
Undergrad Time dilation formula for an object near a black hole
- Dynamotime
- · Replies 3 ·
High School Stretched piece of spacetime example appropriate for student
- Fractalm
- · Replies 11 ·
Graduate Deriving Riemann Tensor Comp. in General Frame
- "Don't panic!"
- · Replies 9 ·
Graduate Solving TOV equations for non-constant density stars
- shadi_s10
- · Replies 2 ·
Graduate Does light exchange momentum with a mass approaching or receding?
- jartsa
- · Replies 6 ·
Undergrad Why does gravity affect time in space?
- Armando Valle
- · Replies 16 ·
Graduate Leonard Wiechert Potential: Coulomb Law & Lorentz Transforms
- goran d
- · Replies 1 ·
Graduate Dipole antenna radiation frequency paradox at 0.6c approach
- Frank Peters
- · Replies 2 ·
Graduate Is Special Relativity Correct for Observer A?
- Anama Skout
- · Replies 11 ·
High School Moving clock, what exaclty "ticks" slower then the stationar
- revv
- · Replies 20 ·
Graduate Gravitational Constant: Why Is It Fundamental?
- Vishwasks001
- · Replies 7 ·
High School Is Time Travel Possible Beyond the Speed of Light?
- jonatron5
- · Replies 2 ·
Graduate Are light and time somehow intertwined?
- Jaami M.
- · Replies 6 ·
Undergrad Would Gravity Exist Without Inertia?
- Tiago
- · Replies 6 ·
Graduate Lorentz transformation matrix and its inverse
- dyn
- · Replies 19 ·
Graduate Does gravity cause mass or mass cause gravity?
- 1832vin
- · Replies 8 ·
Graduate Why is the magnitude of 4-velocity always equal to the square of c?
- TimeRip496
- · Replies 3 ·
Graduate Can kinetic energy lead to black hole?
- Stephanus
- · Replies 45 ·
Graduate Andromeda paradox and determinism?
- durant
- · Replies 71 ·
Graduate How can light be trapped in a black hole?
- Jur van Oerle
- · Replies 15 ·