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 Energy-Mass Gravity: Universe's Gravitational Pull
- zepp0814
- · Replies 4 ·
Graduate Closed flat space twin paradox
- Ibix
- · Replies 29 ·
Graduate Something I don't understand about FTL travel
- AndromedaRXJ
- · Replies 27 ·
Graduate Validity of Newton's Laws on a MCRF
- Zag
- · Replies 9 ·
Graduate Does negative potential energy reduce the effect of gravity?
- Jonnyb302
- · Replies 11 ·
Graduate Why don't photons experience time?
- la6ki
- · Replies 141 ·
Graduate Finding Constant \alpha_M in SET Definition
- elfmotat
- · Replies 1 ·
Graduate Destroying A Black Hole: Can Alice Escape?
- anorlunda
- · Replies 2 ·
Graduate Is the asymmetry mentioned in 1905 SR paper fully removed?
- GregAshmore
- · Replies 47 ·
Graduate Can FTL Travel via Wormholes Create Time Paradoxes?
- vemvare
- · Replies 1 ·
Graduate A SR experiment in which an entity exists in frame A but not frame B
- GregAshmore
- · Replies 56 ·
Graduate Can Mirrors Create a Window to See into the Past?
- baker27marine
- · Replies 3 ·
Graduate Field of Point Mass: MTW Ex 7.3C Solution
- zn5252
- · Replies 1 ·
Graduate Simultaneity of events inside a singularity
- Alyx.Vox
- · Replies 14 ·
Graduate Timelike Metrics: What Is a Timelike Vector?
- pleasehelpmeno
- · Replies 2 ·
Graduate Living Forever Through Relative Time: Two People, One Destiny
- Ezio3.1415
- · Replies 13 ·
Graduate Variational Principles in GR: Explaining Lagrangian Varying
- pleasehelpmeno
- · Replies 5 ·
Graduate Does Gravity Have a Speed Limit?
- Astro_Will
- · Replies 4 ·
Undergrad Question about gravity on a moving object
- Low-Q
- · Replies 5 ·
Graduate Principle of Equivalence: Understanding the Foundations of General Relativity
- Morgoth
- · Replies 4 ·
Graduate Efficiently Lowering Tensor Indices: Simplified Equations
- pleasehelpmeno
- · Replies 9 ·
Graduate Momentum of neutron, proton, electron
- wahaj
- · Replies 12 ·
Graduate What is the relationship between light, time and space?
- Endervhar
- · Replies 6 ·
Does Time Properly Dilate in the Relativity Game?
- bcrowell
- · Replies 10 ·
Graduate Number of unknowns - Coordinate Transforms
- thehangedman
- · Replies 4 ·
Graduate Gravity and the Infinity Problem 2 Questions
- mikejp56
- · Replies 9 ·
Graduate Why Are Off-Diagonal Ricci Tensors Zero in Symmetric FRW Metrics?
- pleasehelpmeno
- · Replies 3 ·
Graduate Is Dirac's Delta to the fourth power equal to 0.5?
- zn5252
- · Replies 1 ·
Graduate Why doesn't mass of light equal infinity
- Sting33
- · Replies 14 ·
Graduate NASA could build a warp drive?
- zepp0814
- · Replies 2 ·
Graduate Black Hole - Conservation of energy?
- jnorman
- · Replies 13 ·
Graduate Is gravitational energy continuous?
- MikeGomez
- · Replies 18 ·
Undergrad Find Dist. b/w 2 Points in 3D Space incl. Time Dim.
- zepp0814
- · Replies 6 ·
Graduate Homogeneous gravitational field and the geodesic deviation
- sergiokapone
- · Replies 29 ·
Graduate Cosmic Inflation & Fine Structure Constant: Theory & Observations
- pervect
- · Replies 4 ·
Graduate Curvature of Spacetime on Earth
- Johninch
- · Replies 25 ·
Graduate Derivation of Einstein Field Equations
- tensor33
- · Replies 6 ·
Undergrad Proper time: confusion over what it means
- quellcrist
- · Replies 7 ·
Graduate How can space know how to curve
- duordi
- · Replies 17 ·
Undergrad Time Traveling: Can We Go Back in Time?
- IAm12YearsOld
- · Replies 1 ·
Graduate Why Doesn't Ether Equal Spacetime?
- Pjpic
- · Replies 1 ·
Graduate Relativistic index notation del-operator
- arwright3
- · Replies 6 ·
Graduate Light doesn't travel through time?
- Fat=laziness
- · Replies 11 ·
Graduate Why Does Mass Warp Spacetime and How Does Energy Fit In?
- guitarphysics
- · Replies 32 ·
Undergrad Earth Travel Speed: 800 km/s in Universe?
- cryptist
- · Replies 17 ·
Graduate Gravity Probe B and Our 4-Dimensional World: Does Time Stand Still?
- Descartz2000
- · Replies 2 ·
Graduate Special Relativity and Blue Shift question
- Astro_Will
- · Replies 6 ·
Graduate Orthochorous? Don't think I've heard that term before
- Fredrik
- · Replies 5 ·
Graduate Thought experiment to test Relativity of Simultaneity
- soprano
- · Replies 10 ·
Graduate Mass dialation for space drive
- adamsmith56
- · Replies 3 ·
Undergrad Please explain this light speed question.
- ollybygolly
- · Replies 8 ·
Graduate Can 4-velocity Have Negative Component in Curved M?
- c299792458
- · Replies 2 ·
Graduate Is speed of light a teleportation?
- mantas29
- · Replies 21 ·
Graduate Trouble with a Solar System simulation
- tfr000
- · Replies 7 ·
Graduate What is the effect of a massive, fast-moving planet entering a black hole?
- curiousasker
- · Replies 17 ·
Graduate Does GR produce the Planck relation and uncertainty principles?
- liometopum
- · Replies 13 ·
Graduate Understanding General Relativity
- A Troubled Man
- · Replies 26 ·
Graduate Question about travelling faster than light.
- Synchronised
- · Replies 61 ·
Graduate What is the Formula for Spin Connection in General Relativity?
- Worldline
- · Replies 10 ·
Graduate Alcubierre Drive: Special Relativity Effects, Doppler Shifting, & More
- Fsmv
- · Replies 3 ·
Undergrad How Does General Relativity Explain Gravitational Movement?
- pro4life
- · Replies 11 ·
Graduate Barn Pole Paradox with Silo Variation
- dseppala
- · Replies 4 ·
Graduate Historical Lorentz Interpretation and SR
- Thinker007
- · Replies 15 ·
Graduate Palatini f(R) gravity and the variation
- shadi_s10
- · Replies 7 ·
Graduate Deriving Connection-Metric Relation from Palatini Formalism
- luckyboots
- · Replies 9 ·
Graduate Resolving the Twin Paradox with Symmetry and LabVIEW
- 888eddy
- · Replies 16 ·
Undergrad Software for General Relativity
- Worldline
- · Replies 6 ·
Undergrad Can Earth be considered an inertial reference frame?
- cooper607
- · Replies 8 ·
Undergrad Gravitational Dilation of Time
- boyongo
- · Replies 5 ·
Graduate Time Dilation vs Differential Aging
- arindamsinha
- · Replies 22 ·
High School I don't get the Theory of Relativity
- Yayfordoritos
- · Replies 41 ·
Graduate Both positive and negative curvature?
- anorlunda
- · Replies 7 ·
Graduate Is my understanding of relativity correct?
- Rotating Frame
- · Replies 11 ·
Graduate Relativity of simultaneity question
- laurub
- · Replies 5 ·
Graduate Continuity/Locality and Discreteness/Nonlocality
- cryptist
- · Replies 1 ·
Graduate Gravitational energy-momentum tensor
- Worldline
- · Replies 9 ·
Graduate How does a black hole know how big it should be?
- Slamfu
- · Replies 34 ·
Graduate Einstein's special relativity beyond the speed of light
- bohm2
- · Replies 11 ·
Graduate Photon Velocity: Is the Real Path of Light Straight?
- TomTelford
- · Replies 10 ·
Undergrad What Inspired Einstein to Develop the Concept of Spacetime?
- Macrobe
- · Replies 1 ·
Graduate Why is light attracted to black holes if photons have no mass?
- duu57f
- · Replies 92 ·
High School Why c2 (speed of light squared)?
- neoweb
- · Replies 66 ·
Graduate Gravitational Lensing Q: Angle Deflection Sun/Earth?
- Macrobe
- · Replies 4 ·
Graduate Length of Motionless Space-Time: Meaning and Calculation
- PerpStudent
- · Replies 9 ·
Where to Find "The Theory of Special Relativity" - Tom
- TomTelford
- · Replies 6 ·
Graduate Do different reference frames agree with total energy?
- BomboshMan
- · Replies 3 ·
Graduate Restricting RMS Speed of Molecules to Comply with Relativity
- Vodkacannon
- · Replies 13 ·
Graduate Einstein tensor with the cosmological constant present.
- Messenger
- · Replies 21 ·
Graduate Can Angular Momentum Be Converted to Mass in Photons?
- San K
- · Replies 15 ·
Graduate Is the Alcubierre Drive the Future of Faster-Than-Light Space Travel?
- mnielsen1
- · Replies 3 ·
Undergrad Travelling faster than speed of light
- shivakumar06
- · Replies 2 ·
Graduate Can the Alcubierre Drive Work Without Exotic Matter?
- TimDubya
- · Replies 5 ·
Graduate Does Gravity Swirl? Why? Researching the Truth
- SuperM4ssive
- · Replies 5 ·
Graduate LHC and partical decay - time question -
- uperkurk
- · Replies 21 ·
Undergrad Difference between the special and general relativity
- dido28
- · Replies 14 ·
Undergrad What's the difference between Lorentz factor for frames and for particles?
- BomboshMan
- · Replies 1 ·
Graduate Can Two Different Coordinate Systems Explain the Zero Relative Speed of Light?
- penomade
- · Replies 25 ·
Graduate Three dimensional gravity paradox
- madsquid
- · Replies 13 ·
Graduate Quantum gravity - Planck's constant as a scalar field?
- soothsayer
- · Replies 5 ·
Graduate How Does the Topology of Spacetimes Influence the Structure of Curved Manifolds?
- kevinferreira
- · Replies 110 ·