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 Need help understanding electromagnetics and relativity
- 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 Simultaneity: disagreement, in the same reference frame
- 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 Mass-Energy Relation: Burning Wood & Speed of Light
- Esfand Yar Ali
- · Replies 2 ·
Insights Does Gravity Gravitate? Part 2 - Comments
- PeterDonis
- · Replies 30 ·
Graduate Objects at Speed of Light: Time Dilation on Stop
- giograf
- · Replies 11 ·
Graduate SR & Lorentz Scalar Fields: Covariant Diff. & Wave Amplitude
- 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 Wormholes, Gravity & Interaction: Can a Star Pull a Planet?
- Ryan Reed
- · Replies 4 ·
Graduate Light Travel: How Can It Move Without Time?
- Fowler
- · Replies 19 ·
Graduate Tidal Forces in Accelerating Frames
- jartsa
- · Replies 4 ·
Undergrad Question about Relativity: Speed Through Space & Time
- Starlover
- · Replies 6 ·
Graduate Black Holes & Light: Can Light Escape?
- flyingace
- · Replies 4 ·
Graduate Model Mercury Orbit w/Relativity: Force of Gravity Calc Explained
- 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 General Relativity & Differential Geometry Q&A
- 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 Closed Timelike Curves Explained in Layman's Terms
- 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 Relativity Theory: Bill & Nancy's Observer Question
- 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 Boundary Construction for B.H. & B.B. 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 Alternative Interpretation of Bell Test: 40 Nanoseconds & Photon Perspective
- pervirtuous
- · Replies 1 ·
Graduate Bob's Relativistic Velocity Addition: 0.9c for Alice & Charlie
- DiracPool
- · Replies 4 ·
High School Gravity: Mass vs. Size Explained
- Kev.
- · Replies 9 ·
Graduate Sending Info at Relativistic Speeds? | Doppler Effect | Horizons Photo
- 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 due to Gravity: Formula Explained
- 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 Solve TOV for Non-Constant Density Star - Friends Help Needed!
- shadi_s10
- · Replies 2 ·
Graduate Light & Gravity: Momentum Exchange Examined
- 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 Relativity & Dipole Radiation: Reconciling Perspectives
- 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 Wait.... what causes gravity again?
- 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 ·
Graduate Is caustic surface of an astrophysical black hole one event?
- bcrowell
- · Replies 3 ·
Graduate Cauchy-Schwarz for two spacelike vectors
- bcrowell
- · Replies 3 ·
Graduate The Relativistic Figure Skater
- AVentura
- · Replies 25 ·
Graduate Relativistic Transformation of Lorentz Force (E + v x B)
- mairzydoats
- · Replies 5 ·
Graduate Can You Move Faster Than Light Relative to Another Object?
- Moldj
- · Replies 9 ·
Graduate Super Translations Explained | Stephen Hawking
- Einstein's Cat
- · Replies 4 ·
Graduate What is the Conformal Boundary of AdS Space?
- kau
- · Replies 1 ·
Graduate Which text on differential geometry to supplement relativity
- Kostik
- · Replies 10 ·
Graduate Penrose Diagram for Multi-Blackhole Solutions: Reference
- Roy_1981
- · Replies 6 ·
Undergrad How do we know the speed of light is constant?
- Tapsnap
- · Replies 11 ·
Graduate Is Gravitational Force conserved at the origin (r=0)?
- chi_rho
- · Replies 9 ·