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 Is Special Relativity Testable?
- dbkooper
- · Replies 8 ·
Graduate Sagnac Effect on Equatorial Plane: MG-P Exp & GR Twist
- davek
- · Replies 2 ·
High School Spacetime, Gravity & My Theory - A Year 9 Perspective
- cons013
- · Replies 13 ·
Graduate Defining simultaneous as what you see now
- Erland
- · Replies 13 ·
Undergrad Does acceleration change according to inertial frame of reference?
- David Carroll
- · Replies 13 ·
High School Rest Mass Definition: What is E=MC2?
- avito009
- · Replies 5 ·
Graduate Time Dilation and Muon Energy vs. height (Muon Experiment)
- piareround
- · Replies 3 ·
Graduate Gravitational redshift with time dilation?
- EdisT
- · Replies 9 ·
Undergrad Query regarding Special Relativity
- aditya ver.2.0
- · Replies 9 ·
Graduate Relativistic Doppler Color Shift of White Light from Sun
- TJonline
- · Replies 2 ·
Graduate Photon Elapsed Time Equation: Calculating 24hrs
- Doc Marino
- · Replies 3 ·
Graduate The Nature of Time: Physicist's Interpretations & Thought Experiments
- ijdavis
- · Replies 2 ·
Graduate Speculation on the nature of collapsed stellar cores
- kwright
- · Replies 15 ·
Physics at its Finest: Simple, Definitive, Unambiguous, Conclusive
- KL7AJ
- · Replies 7 ·
Graduate Viewing a (giant) clock at relativistic speed
- TJonline
- · Replies 33 ·
Graduate Equivalence Principle in muon experiment?
- exmarine
- · Replies 102 ·
Graduate Orbits around a Schwarzschild/Kerr black hole
- FunWarrior
- · Replies 2 ·
Graduate Black hole formation with golf balls in GR
- rjbeery
- · Replies 22 ·
Graduate Deriving Møller's Relativistic Minimum Radius for Rotating Bodies
- michael879
- · Replies 9 ·
Graduate Maximum magnetic field from moving charge
- KeeperOfKeys
- · Replies 9 ·
Graduate Update: Negation of the Grandfather Paradox
- jacirez
- · Replies 1 ·
Graduate Matter breaking the speed of light? [Nope]
- Dewidubbs
- · Replies 43 ·
Graduate Time Lapse Simulations: Traveling Through Space at Light Speed
- george14215
- · Replies 1 ·
Graduate Understand Mass-Energy Equivalence: Einstein's Thought Exp.
- ebm_teacher
- · Replies 1 ·
Undergrad Speed of Light: Is There Anything Faster?
- Anoop Koushik
- · Replies 10 ·
Graduate Covariant derivative of covector
- PhyAmateur
- · Replies 5 ·
Graduate What is the relationship between classical and relativistic Doppler formulas?
- Albertgauss
- · Replies 36 ·
Graduate Lorentz-Invariant Scalar Products
- Sunnyocean
- · Replies 17 ·
Graduate Observational Evidence of Black Holes
- stevendaryl
- · Replies 8 ·
Graduate Gravitational Waves: Lone Body in Universe
- anubodh
- · Replies 1 ·
Graduate How Do You Calculate the Magnitude of a 4-Vector?
- Jonsson
- · Replies 1 ·
Graduate Deriving Metric $$g_{ij}$$ w/ Respect to Time t
- PhyAmateur
- · Replies 5 ·
Graduate Why isn't the light signal from a falling spaceship Doppler shifted?
- sweetdreams12
- · Replies 6 ·
Graduate Gravitational Fields Created by EM Waves: Reference Frame?
- Ookke
- · Replies 6 ·
Graduate Solving the Horizontal Light Clock Puzzle: Length Contraction & Frame Shifting
- center o bass
- · Replies 1 ·
Graduate Space-Time Vibs: Moving Objs Effects & Cycle
- anubodh
- · Replies 2 ·
Graduate Does Relativity Allow for Non-Locality in the Universe?
- wittgenstein
- · Replies 23 ·
Graduate Special relativity and accelerated frames
- CKH
- · Replies 52 ·
Graduate Universe Age: Why Is There a Set Number?
- TheScienceOrca
- · Replies 1 ·
Graduate Questions about Traversable Wormhole Metric
- space-time
- · Replies 1 ·
Graduate How does the expanding universe affect matter/energy
- TheScienceOrca
- · Replies 46 ·
Graduate Event-horizon from the blackhole metric
- Ravi Mohan
- · Replies 9 ·
Graduate [Special Relativity]Questions on Maxwell Equations' Derivation
- genxium
- · Replies 6 ·
Graduate Spacetime separation and dilation/contraction
- Dylan H
- · Replies 19 ·
Graduate Calculation of gravity near a black hole.
- avito009
- · Replies 5 ·
Graduate Aging Fastest: Does Moving Counter Universe Movement?
- sf_49ers_49
- · Replies 9 ·
Graduate Rindler Coordinates: Signals That Never Arrive
- Cancer
- · Replies 13 ·
Graduate Laser Light Passing Lane: Proton, Light Waves & Info
- David Cate
- · Replies 8 ·
Graduate Lorentz transformation independence of axis orthogonal to velocity
- center o bass
- · Replies 7 ·
Graduate Quick question on Minkowski space diagram
- Diploria
- · Replies 10 ·
Graduate Martin & Shaw: Problem 3.5 - Understanding \tau ≈ c
- Daaavde
- · Replies 2 ·
Graduate Transpose Inverse Property (Dual Vectors)
- PhyAmateur
- · Replies 4 ·
Graduate The speed composition vs the light aberration in SR
- quo
- · Replies 10 ·
Graduate How Does the Metric Tensor Connect Vectors and Their Duals in Vector Spaces?
- ChrisVer
- · Replies 12 ·
Graduate Spec-rel, two ships accelerate away from each other
- Albertgauss
- · Replies 9 ·
Graduate Four Momentum in General Relativity
- MrBillyShears
- · Replies 4 ·
Graduate Gravitational Field Strength of a Neutron Star: Rotation & Heat Impact
- povillsss
- · Replies 6 ·
Graduate (length contraction)the distance travel or the object length shorter?
- benting180
- · Replies 12 ·
Graduate Black Holes: Accretion Disks /Increase/ Angular Momentum?
- MattRob
- · Replies 3 ·
Graduate Lorentz contraction and Time dilation (Special relativity)
- Denver Dang
- · Replies 2 ·
Graduate Is There Gravity Between Two Photons?
- johann1301
- · Replies 3 ·
Graduate Mach's Principle & Local Fields: A Discussion
- e2m2a
- · Replies 10 ·
Graduate Can Kerr-Newman Geodesics Be Separated in Hamilton-Jacobi Equation with Charge?
- michael879
- · Replies 3 ·
Graduate Is theory of relativity really relative ?
- Wicked Wildie
- · Replies 18 ·
Graduate Lorentz transformations and Minkowski metric
- blankvin
- · Replies 19 ·
Graduate Time Dilation in General Relativity: Twins Paradox Explained
- Niramas
- · Replies 5 ·
Graduate Lorentz invariance of Klein-Gordon Lagrangian
- ShayanJ
- · Replies 10 ·
Undergrad Einstein's Train Thought Experiment
- ecoo
- · Replies 32 ·
Graduate If time time dilation is infinite at v=c, then time stands still only
- jmonlive
- · Replies 2 ·
Graduate Riemann Curvature Tensor Symmetries Proof
- Emil
- · Replies 5 ·
Graduate Intuition on the Friedman equation: curvature and expansion
- center o bass
- · Replies 5 ·
Undergrad Relative Velocity Experiment - A Matter of Discussion
- alionalizoti
- · Replies 53 ·
Graduate Gravitational Waves: Why They're Produced & Detection
- clumps tim
- · Replies 1 ·
Graduate Twin Paradox Explained: Earth & Space Time Effects
- manimaran1605
- · Replies 4 ·
Graduate Can n-spheres have temporal components in their metric tensor?
- space-time
- · Replies 5 ·
Graduate Temporal components in metric tensors
- space-time
- · Replies 2 ·
Undergrad Why Is Gravity Considered a Fundamental Force in Physics?
- pero2912
- · Replies 2 ·
Graduate Can Einstein's Equations be Applied to a Closed Universe?
- m4r35n357
- · Replies 1 ·
Undergrad The Doppler Effect: A Train Approaching a Stationary Observer
- manimaran1605
- · Replies 2 ·
Graduate Analyzing Space-Time Trajectories: Rectilinear & Positive Velocity
- fabrc
- · Replies 3 ·
Graduate The Principle of Invariant Light Speed
- AbhiFromXtraZ
- · Replies 7 ·
Graduate Curvature of Light Paths Near a Mass
- Sonderval
- · Replies 5 ·
Graduate Does Gravity Gravitates or Not? Exploring the Debate on General Relativity
- PeterDonis
- · Replies 21 ·
Graduate Bending of Light due to Gravity
- avito009
- · Replies 73 ·
Graduate Why Can Light Only Travel at the Speed of Light?
- Greatness
- · Replies 7 ·
Graduate It's Now or never -- Question about "universal" time
- johniha
- · Replies 32 ·
Graduate Time Dilatation: The Twins Paradox
- tonyxon22
- · Replies 4 ·
Graduate What is Active Curvature Mass?
- wacki
- · Replies 1 ·
Graduate Has relativistic mass gone out of fashion?
- 7777777
- · Replies 36 ·
Graduate What is the metric tensor of the 4-sphere?
- space-time
- · Replies 10 ·
Graduate Can 4D Spacetime be Embedded Isometrically in Fewer than 90 Dimensions?
- stevendaryl
- · Replies 4 ·
Graduate Dark Matter: Why Look for It Instead of Modifying Laws?
- exmarine
- · Replies 6 ·
Graduate What Are the Doppler Effects Experienced by Alice and Bob?
- DiracPool
- · Replies 6 ·
Graduate What are the physics of length contraction?
- CKH
- · Replies 18 ·
Graduate Gravitational attraction thought experiment
- Waltr
- · Replies 17 ·
Graduate Questions on Parallel Transport: Riemann Tensor & More
- space-time
- · Replies 2 ·
Graduate Need an explanation for Null Vectors
- cy6nu5
- · Replies 3 ·
Graduate Physical Interpretation of Coordinates in GR
- MrBillyShears
- · Replies 3 ·
Graduate Expansion of the universe | Potential Effects on Energy / Matter
- TheScienceOrca
- · Replies 10 ·
Graduate Reichenbach on SR: Conventional Element & One-Way Speed of Light
- phellen
- · Replies 2 ·