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 Definition of the Einstein Tensor
- Dreak
- · Replies 23 ·
Graduate Force on a particle , length contraction
- Crazymechanic
- · Replies 5 ·
Undergrad What Would the Universe Look Like While Traveling Close to the Speed of Light?
- Fieldwaveflow
- · Replies 7 ·
Graduate Say I have my pen on my desk; does it describe a geodesic?
- Dreak
- · Replies 9 ·
Graduate Do Frames Affect Dimensional Units?
- BitWiz
- · Replies 1 ·
Graduate Calculating Invariant pT in 2->2 Processes
- JoePhysicsNut
- · Replies 1 ·
Graduate Reason behind speed of em waves being constant
- dwellexity
- · Replies 25 ·
Graduate Can You Travel to the Roman Empire Using a Wormhole?
- JordanSC5
- · Replies 3 ·
Graduate Contra-variant and Co-variant vectors
- exmarine
- · Replies 5 ·
Graduate Light wavelenths longer than diameter of black hole?
- Stonius
- · Replies 15 ·
Graduate Relativity: Space & Time on a Tempurpedic Mattress?
- Miket123
- · Replies 1 ·
Graduate Understanding Velocity & Relativity: A Physics-Fling
- Ultermarto
- · Replies 1 ·
Graduate Is There Springyness in Space? Examining the Possibility
- Ionjump
- · Replies 8 ·
Graduate Was Wald wrong? A question with the problem 4 in Chapter 6
- qinglong.1397
- · Replies 7 ·
Graduate I don't see the problem with action at distance
- Erland
- · Replies 12 ·
Graduate Blueshift at event horizon in rest and accelerated frames
- Stonius
- · Replies 12 ·
Graduate Varying an Action in Zee's GR Book
- dm4b
- · Replies 4 ·
Graduate Linear Gravity Field - Lagrangian
- ProfDawgstein
- · Replies 8 ·
Graduate Mass conservation charged dust
- WannabeNewton
- · Replies 30 ·
Graduate Measuring speed of light with enhanced detectors
- Darko M
- · Replies 11 ·
Graduate Proving that the det of the Lorentz tensor is +1 or -1 (MTW p 89)
- TerryW
- · Replies 1 ·
Undergrad Galaxies Rotate Fast: Gravitational Lens Effect
- Abstractness
- · Replies 2 ·
Graduate Can someone travelling at c race a photon?
- QuestionMarks
- · Replies 13 ·
Graduate Implications of Constant c Squared: E/m = Constant?
- VernonX
- · Replies 2 ·
Graduate Are singularities part of the manifold?
- TrickyDicky
- · Replies 150 ·
Graduate Electromagnetic Field Lagrangian - Field Equations
- ProfDawgstein
- · Replies 15 ·
Graduate Faster than light travel proved sort off
- mark_gg
- · Replies 61 ·
Graduate Local Versus Remote Views of Temperature
- anorlunda
- · Replies 3 ·
Graduate Energy Change Due to Doppler Shift
- deadscientist
- · Replies 3 ·
Curvature of Space: What is it?
- Ionjump
- · Replies 1 ·
Graduate Gravitational time dilation reason
- rogerk8
- · Replies 41 ·
Graduate What mechanism causes the acceleration?
- LuckyNate
- · Replies 6 ·
Graduate SL(2,C) to Lorentz in Carmeli's Theory of Spinors
- arkajad
- · Replies 80 ·
Undergrad Can a String Travel Faster than the Speed of Light?
- mausten
- · Replies 13 ·
Undergrad Photon's Point Sized Universe or plane sized?
- aayushgsa
- · Replies 38 ·
Graduate When Did Light Begin Its Journey From a Supernova?
- Romulo Binuya
- · Replies 8 ·
Graduate Are the following 2 equations lorentz invariant?
- Dreak
- · Replies 6 ·
Graduate Formulating x^n Coordinate System for Non-Rectangular/Spherical Riemann Manifold
- Philosophaie
- · Replies 1 ·
Graduate Poisson bracket and Electric and Magnetic Weyl tensor in GR
- nix00
- · Replies 7 ·
Graduate Is there a redshift in a conformally flat metric space?
- tardy
- · Replies 12 ·
Undergrad Do Forces Change in Magnitude at High Velocities?
- bgq
- · Replies 6 ·
Undergrad Non-rotating or rotating Metric
- Philosophaie
- · Replies 7 ·
Graduate Is there an Instant in Time That's Everywhere The Present
- sb635
- · Replies 35 ·
Graduate Question about the x term in time dilation
- Platformance
- · Replies 34 ·
Graduate Geodesic Equation: Generalizing for Functions F
- tom.stoer
- · Replies 2 ·
Graduate Difference between timespace expansion/contraction and kinetic motion?
- MiloOfCroton
- · Replies 10 ·
Graduate Is Relativity Automatically Accounted for in Maxwell's Equations?
- cragar
- · Replies 6 ·
Graduate For the ADM alternative:http://arxiv.org/abs/gr-qc/0604064
- Orion1
- · Replies 7 ·
Undergrad Building a measurement system based on C
- jnorman
- · Replies 8 ·
Undergrad Question about Michelson Morley experiment
- Kalidor
- · Replies 7 ·
Graduate Curvature Tensor: Non-Zero in Local Inertial Frame
- sadegh4137
- · Replies 22 ·
Graduate General covariance vs. locality
- sadegh4137
- · Replies 1 ·
Undergrad How much energy does it take to reach relativistic speeds?
- schonovic
- · Replies 10 ·
Graduate Is Time a Construct of Consciousness? Examining Entropy and the Reality of Time
- JordanSC5
- · Replies 2 ·
Graduate 'Expansion' of fluid world lines
- zn5252
- · Replies 9 ·
Graduate Why Do These Riemann Tensor Terms Cancel Each Other Out?
- ProfDawgstein
- · Replies 3 ·
Graduate Energy Momentum Tensor - EM - Derivative
- ProfDawgstein
- · Replies 21 ·
Graduate Arthur Eddington: Early GR Experts & His Views
- Jolb
- · Replies 24 ·
Graduate Is Cosmological Time Dilation real?
- johne1618
- · Replies 45 ·
Undergrad Why is the speed of light constant?
- Mohamad&Issa
- · Replies 27 ·
Graduate Could Photon Reflection Explain Gravity?
- arnesinnema
- · Replies 7 ·
Graduate When is the 4-velocity useful?
- copernicus1
- · Replies 1 ·
Graduate Fermi-Walker transport and gyroscopes
- atyy
- · Replies 7 ·
Graduate Will photons fry an object falling into black hole?
- Ookke
- · Replies 4 ·
Graduate What's so special about light?
- copernicus1
- · Replies 6 ·
Graduate Atomic clocks in gravitational field
- Philosopha
- · Replies 138 ·
Graduate Ultraviolet Catastrophe of Gravity
- quantumfoam
- · Replies 11 ·
Graduate Did Einstein's Theory of Relativity Predict the Mass of Binary Stars?
- audioloop
- · Replies 4 ·
Graduate How Does General Relativity Affect Star Orbits Around Schwarzschild Black Holes?
- Philosophaie
- · Replies 10 ·
Graduate How does special relativity affect the Hall effect in conductors?
- cragar
- · Replies 4 ·
Graduate Doppler effects and relativity
- arnesinnema
- · Replies 1 ·
Graduate Inner and outer horizon of black hole
- sadegh4137
- · Replies 3 ·
Graduate Why can't I see fringes with eyepiece in my Michelson Interferometer?
- itsnaresh
- · Replies 2 ·
Graduate Maxwell Equations Lorentz Invariance - Notation
- ProfDawgstein
- · Replies 16 ·
Undergrad Why is 299,792,458 m/s the speed of light in a vacuum?
- Artorias
- · Replies 7 ·
Graduate How Do General Relativity Tensors and Their Indices Work?
- vidi
- · Replies 4 ·
Graduate Gravitational force of moving objects
- coolmatthew
- · Replies 7 ·
Graduate Proof Minkowski metric is invariant under Lorentz transformation
- SamRoss
- · Replies 4 ·
Graduate Metric tensor at the earth surface
- tm007
- · Replies 8 ·
Graduate Invariance of the speed of light
- littleHilbert
- · Replies 5 ·
Graduate Atom Emitting Photon: Energy Conservation
- 71GA
- · Replies 1 ·
Graduate Mechanism of the cosmological redshift
- Sunfire
- · Replies 23 ·
Graduate What if Earth crossed the event horizon of a supermassive black hole
- Ookke
- · Replies 28 ·
Graduate Very specific question about index notation
- mindarson
- · Replies 4 ·
Graduate Curvature of Manifolds: Understanding Relative Concepts
- Benjam:n
- · Replies 58 ·
Graduate Metrics for the Sun & Earth: Rs & Assumptions
- Philosophaie
- · Replies 2 ·
Graduate Decelerating a Constantly Accelerating Ship
- zeframcochrane
- · Replies 1 ·
Graduate Time Effects in Separate Frames of Ref.
- Qoz
- · Replies 2 ·
Graduate Why would a black hole be a gateway to another universe?
- acesuv
- · Replies 18 ·
Graduate Distorting spacetime: Links/references about fundamental limits
- Thinker007
- · Replies 33 ·
Graduate Time dilation effects on a human being
- stawker
- · Replies 6 ·
Graduate Relation between EMR & the force of gravity?
- MinnesotaState
- · Replies 4 ·
Graduate Understanding Positive and Negative Intrinsic Curvature in General Relativity
- ktx49
- · Replies 40 ·
Graduate Questioning the Big Bang Singularity: Time & Gravity
- Alan McDougal
- · Replies 1 ·
Graduate Relativity and the question of age
- Naveen3456
- · Replies 68 ·
Graduate What Does Ricci Equal to Zero Mean for Black Holes?
- Philosophaie
- · Replies 6 ·
Graduate Is it fair to state mass distorts space-time
- MinnesotaState
- · Replies 8 ·
Graduate Recognize Black Hole: Metric Conditions & Features
- sadegh4137
- · Replies 2 ·
Graduate Measurement in special relativity
- sadegh4137
- · Replies 9 ·
Graduate Why is it obvious that the derivative of a 4-vector is also a 4-vector
- wotanub
- · Replies 4 ·