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 Time Dilation: Clark Kent's Scenario
- j3enator
- · Replies 2 ·
Graduate Irrelvancy of motion in C perspective
- JJRittenhouse
- · Replies 34 ·
Graduate Understanding General Relativity: Gravity Warping Space-Time
- Bobbyam
- · Replies 5 ·
Graduate Perihelion advance expressed differently
- TrickyDicky
- · Replies 18 ·
Graduate GR/Hawking Radiation Contradiction
- abomination
- · Replies 1 ·
Graduate How Does the Minkowski Metric Explain Special Relativistic Effects?
- telegramsam1
- · Replies 15 ·
Graduate Can someone explain Gravitational Time dilation?
- Radek01
- · Replies 25 ·
Undergrad How Does the Expansion of the Universe Affect Inertia and Mass?
- chupe1123
- · Replies 12 ·
Graduate Why Does the Minus Sign Matter in Space-Time Interval?
- komodekork
- · Replies 8 ·
Graduate Postulate Approval: Get Help from Physics Experts
- VacuumChamber
- · Replies 15 ·
Undergrad Needing a solid example of a composite mass value
- lenfromkits
- · Replies 22 ·
Graduate On black holes and relativity.
- James Leighe
- · Replies 2 ·
Undergrad Any alternative article websites for students/teens?
- arianabedi
- · Replies 2 ·
Graduate Light & Gravitation: How Do We Know & Prove It?
- paweld
- · Replies 15 ·
Graduate Universe inflation faster than c
- norvegicusbas
- · Replies 3 ·
Graduate Is the Gravitational Constant a Tensor or a Constant Derived from Experiment?
- khemist
- · Replies 4 ·
Graduate How Does Length Contraction Work in Einstein's Relativity?
- nonequilibrium
- · Replies 2 ·
Graduate Another Way of Looking at Gravitational Time Dilation?
- inflector
- · Replies 11 ·
Graduate Is Minkowski space the only Poincare invariant space?
- Rearden
- · Replies 10 ·
Undergrad Gravitational attraction of a spherically symmetrical mass
- Bernie G
- · Replies 16 ·
Graduate BRS: Static Axisymmetric Gravitationless Massless Scalar Field Solutions
- Chris Hillman
- · Replies 6 ·
Graduate Gravity at Earth's Core: Human Impact Hypothesis
- tanzanos
- · Replies 16 ·
Graduate Is the wire necessary to create a B field?
- idea2000
- · Replies 9 ·
Graduate Time dilation or length contraction
- teodorakis
- · Replies 7 ·
Graduate What Lorentz Covariant Objects Can You Name?
- Phrak
- · Replies 9 ·
Graduate Are Geodesics in Outer Space Curved or Straight Paths?
- TrickyDicky
- · Replies 59 ·
Graduate General relativity breaks down at Planck scale
- mersecske
- · Replies 34 ·
Undergrad Velocity needed for a certain change in time
- Molybdenum
- · Replies 10 ·
Graduate Light clock with something else than light
- homer5439
- · Replies 10 ·
Graduate Weyl curvature and tidal forces
- TrickyDicky
- · Replies 23 ·
Graduate Relational Mechanics: Andre K.T. Assis' Unheralded Theory
- Jonnyb42
- · Replies 30 ·
Graduate E.p. implies no gravitational shielding?; Feynman?
- bcrowell
- · Replies 101 ·
Graduate Understanding Congruences, Rigidity: Week of Sickness & Busyness
- Fredrik
- · Replies 7 ·
Graduate GRT: Wrong Picture of Basic Cosmology?
- jensel
- · Replies 1 ·
Undergrad Time Travel: Make me a believer
- gctskippy
- · Replies 17 ·
Graduate New to GR, having trouble with lagrangian calculation
- LoopQG
- · Replies 4 ·
Graduate How do you envision a gravitational field?
- jnorman
- · Replies 8 ·
Graduate The length of a falling elevator
- yuiop
- · Replies 45 ·
Graduate Simultaneity:Confused and almost confident about my own logic
- ambarish
- · Replies 20 ·
Undergrad Trying to understand time delineation
- Vivaci
- · Replies 3 ·
Graduate Gravitational Attraction of a Massive Particle
- GuyWQuestion
- · Replies 4 ·
Graduate Time for Light to Travel in a Gigantic Spaceship
- pavi_elex
- · Replies 1 ·
Graduate The Einstein and Ricci tensors
- TrickyDicky
- · Replies 3 ·
Graduate Is the Newtonian EOM Invariant under Galilei Boosts?
- haushofer
- · Replies 13 ·
Graduate I need to calculate δR: R is Ricci scalar
- sourena
- · Replies 19 ·
Graduate Max Velocity Below c When Falling from Infinity to Black Hole?
- Austin0
- · Replies 4 ·
Graduate Metric Tensor & Symmetric Tensor Product in GR
- Rasalhague
- · Replies 16 ·
Undergrad Time Relativity: Does Velocity Change?
- ConstantineWW
- · Replies 5 ·
Graduate Maxwell's idea to measure aether
- ghwellsjr
- · Replies 4 ·
Graduate Dark Matter and Thorne's unlikely time travel
- nomadreid
- · Replies 1 ·
Undergrad Time Dilation: Does Aging & Decay Slow Down?
- cyberfish99
- · Replies 4 ·
Graduate Metric Sign Convention: Effects on Klein Gordon & Dirac Equations
- iangttymn
- · Replies 5 ·
Graduate 'relativity' of radiation of uniformly accelerating charge
- PAllen
- · Replies 9 ·
Graduate Help wanted with an explanation
- MaeWest
- · Replies 6 ·
Graduate Can SR handle acccelerating frames?
- Ich
- · Replies 18 ·
Graduate Hypervelocity stars and RX J0822-4300
- Redsummers
- · Replies 4 ·
Graduate Does Relativistic Kinetic Energy Increase with Velocity?
- accountkiller
- · Replies 4 ·
Undergrad Relativity at cern - deflection
- RK1992
- · Replies 11 ·
Graduate Ehrenfest / rod thought experiment.
- yuiop
- · Replies 93 ·
Graduate Special Relativity and Black Holes
- 2.71828
- · Replies 2 ·
Graduate BRS: degenerate cases of Born-rigidity
- bcrowell
- · Replies 38 ·
Graduate Balance of Forces - Electrostatic Force vs. Gravitational Force
- TheSicilianSa
- · Replies 18 ·
Undergrad What is the difference between mass and energy?
- jnorman
- · Replies 28 ·
Graduate How Does Absolute Zero Influence Our Understanding of Time and Movement?
- tanzanos
- · Replies 22 ·
Graduate How does mass affect time near the Great Pyramid of Giza?
- PhysicsAdict
- · Replies 2 ·
Graduate Tensor transformation under reflections
- Mesmerized
- · Replies 10 ·
Graduate Derivation of Proper Time, Speed, and Acceleration in SR
- stevmg
- · Replies 14 ·
Undergrad Gravity at Centre of Earth: Infinite?
- Ralph Spencer
- · Replies 10 ·
Graduate General relativity with infinite speed of light?
- mersecske
- · Replies 38 ·
Graduate A red herring is a debating tactic that seeks to divert an opponent
- ClamShell
- · Replies 3 ·
Graduate Lorentz Transformation: Coefficients a_{nm}(u) & Inverse Relations
- Petar Mali
- · Replies 3 ·
Graduate Constancy of metric tensor components as a test of curvature
- Rasalhague
- · Replies 9 ·
Undergrad Is Faster Than Light Travel Possible Through Black Holes?
- kogaht
- · Replies 6 ·
Graduate Derivation of proper time in acceleration in SR
- stevmg
- · Replies 100 ·
Graduate Does Gravitational Time Dilation imply mass change?
- johne1618
- · Replies 1 ·
Graduate Local Lorentz Frame: Blandford & Thorne's Applications of Classical Physics
- Rasalhague
- · Replies 26 ·
High School Wondering e=mc^2 is derived from what equations
- karan1114
- · Replies 2 ·
Graduate Does Extreme Gravity Alter the Value of Pi?
- ravisastry
- · Replies 14 ·
High School Length Contraction Explained Simply
- bhsmith
- · Replies 14 ·
Undergrad Relativity: light in train with person in it
- accountkiller
- · Replies 3 ·
Graduate Currents in the Universe: Understanding Their Effects
- mersecske
- · Replies 1 ·
Graduate Understanding Time Dilation: Confusions and Questions Answered
- ritzmax72
- · Replies 5 ·
Graduate Derivation of Hyperbolic Representation from Lorentz/Minkowski equations in SR
- stevmg
- · Replies 43 ·
Graduate Modification of Law of Reflection from a (moving) mirror in Special Relativity
- maverick280857
- · Replies 5 ·
Can anyone tell a good quotation about GR?
- mersecske
- · Replies 14 ·
High School Time Dilation Debate: Arguments For and Against
- bhsmith
- · Replies 23 ·
Graduate Light Bending in Accelerating Elevators
- trizz10
- · Replies 1 ·
Undergrad Basic question about the speed of light
- elmarto
- · Replies 19 ·
Graduate Voyager probes and time dilation
- Andru10
- · Replies 11 ·
Graduate Is Time the Fifth Dimension in Spacetime?
- Jonnyb42
- · Replies 25 ·
Graduate Gravity Wave Detectors: Prepared for Detection & Active Time
- exponent137
- · Replies 1 ·
Conservapedia - Counterexamples in relativity
- hunt_mat
- · Replies 17 ·
Graduate What is the relationship between matter and spacetime curvature?
- Philos
- · Replies 3 ·
Graduate Spaceship arriving at a planet
- norvegicusbas
- · Replies 4 ·
Graduate Frame of Reference: Does Stuff in the Frame Matter?
- soup_
- · Replies 8 ·
Graduate Could the linear velocity at an infinite distance exceed the speed of light?
- einstor
- · Replies 24 ·
Graduate Reasons why lightspeed travel is impossible
- aexyl93
- · Replies 38 ·
High School Is E=mc^2 Fully Proven or Still Up for Debate?
- your_friend
- · Replies 7 ·
Graduate Gravitational waves are also redshifted?
- Dmitry67
- · Replies 1 ·
Graduate Einstein on Space: Understanding the Concept of Space in Relativity Theory
- ClamShell
- · Replies 8 ·