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 Does Time Dilation Affect Life and Death in Different Frames of Reference?
- Nakshatra
- · Replies 27 ·
Graduate Energy equal to time component of 4-momentum?
- marschmellow
- · Replies 9 ·
Graduate Creating Spacetime Diagrams with Math Software
- stglyde
- · Replies 1 ·
Graduate A Case for the 4-D Space-Space Block Universe
- bobc2
- · Replies 85 ·
Graduate BB theory and preferred frames
- TrickyDicky
- · Replies 94 ·
Graduate Gravitational lensing and the speed of light
- hypernihl
- · Replies 13 ·
Graduate Does Earth's Movement Affect the Twin Paradox in Space Travel?
- Snip3r
- · Replies 42 ·
Graduate Does a clock in free-fall slow due to gravitational time dilation?
- johne1618
- · Replies 8 ·
Graduate Galileo's pendulum could show that time is relative
- simplex
- · Replies 24 ·
Graduate D'Inverno derivation of Schwarzschild solution
- PhyPsy
- · Replies 2 ·
Graduate Mass Established by Relative Motion: Implications in GR?
- jaketodd
- · Replies 51 ·
Graduate This question is not about a moving clock, but about the frame of reference.
- @nonymous
- · Replies 5 ·
Undergrad Relativistic mass thought experiment/proof?
- sorax123
- · Replies 18 ·
Graduate Why does the bending of space necessitate gravitational effects
- Padraic
- · Replies 19 ·
Graduate Relative Motion Leads To Impossibilities (or so it seems to me can you help?)
- cataclysmic
- · Replies 11 ·
Graduate Inhomogeneous (poincare) lorentz transormation
- spacelike
- · Replies 3 ·
Graduate What will I see in this scenario? (involves rockets traveling near light speed)
- cataclysmic
- · Replies 3 ·
Graduate A question about stationary reference frame
- goodabouthood
- · Replies 34 ·
Graduate Escape of light perfectly orthogonal to black hole
- gatz
- · Replies 7 ·
Graduate Can Anyone Explain How to Visualize a 4D Structure Like a 3-Sphere?
- surajt88
- · Replies 6 ·
Graduate Gravitational field calculation question
- Monster99d
- · Replies 6 ·
Graduate Why are the effects of Time Dilation permanent but Length Contraction is Not?
- dfaullin
- · Replies 76 ·
Graduate Thought Experiment regarding Time
- dfaullin
- · Replies 8 ·
Graduate How Does the Electric Field of a Moving Point Charge Differ from Its Rest Frame?
- nos
- · Replies 6 ·
Graduate Time Dilation in a Non-Rotating Laser Sphere: Inside vs Outside
- Monster99d
- · Replies 1 ·
Graduate Is nonholonomic Xformation = Diffeomorphism
- friend
- · Replies 2 ·
Undergrad Time Dilation and Length Contraction the same thing?
- goodabouthood
- · Replies 7 ·
How Does Light Travel Through a Coke Bottle?
- Passionflower
- · Replies 2 ·
Undergrad Length of Moving Rod Relative to Frame S
- Snip3r
- · Replies 10 ·
Undergrad Why Does Stationary Observer See Light Clock Traverse Longer Distance?
- goodabouthood
- · Replies 4 ·
Graduate Could Neutrino Bursts Be the Key to FTL Communication in SETI Research?
- whosapopstar?
- · Replies 2 ·
Undergrad Aberration of light in classical and relatvistical cases
- queenstudy
- · Replies 8 ·
Graduate Very confused about path of light from distant galaxies :-(
- fbs7
- · Replies 20 ·
Graduate How relativity could explain this engineering problem.
- duri
- · Replies 4 ·
Graduate Spacetime Fabric Shear Strength
- stglyde
- · Replies 15 ·
Graduate What is the Densest Known Material?
- dm4b
- · Replies 1 ·
Graduate Can Black Holes Challenge the Second Law of Thermodynamics?
- AuraCrystal
- · Replies 4 ·
Graduate What is the concept of aberration in classical and relativistic physics?
- digi99
- · Replies 15 ·
Undergrad Are gravitational effects instantaneous?
- jacksonb62
- · Replies 20 ·
Graduate What is Kaluza-Klein Particle & How Does It Work?
- phys06
- · Replies 1 ·
Graduate Inverse coefficients of dt & dr in Schwarzschild
- gabeeisenstei
- · Replies 6 ·
Graduate Recommended GR Texts for Physics/Math Background
- marschmellow
- · Replies 2 ·
Graduate Does a photon know how fast to leave its emitter?
- stever
- · Replies 46 ·
Graduate FTL and causality violation in special relativity versus Lorentz Ether Theory
- stglyde
- · Replies 380 ·
Graduate What comprises a SRT relative velocity?
- Tracer
- · Replies 13 ·
Graduate Light Reflection Question: Velocity and the Infinite Mirror
- Snip3r
- · Replies 9 ·
Graduate Foliation of time in quantum gravity
- exponent137
- · Replies 10 ·
Graduate Twin Paradox: How Much Time Has Passed on Earth?
- goodabouthood
- · Replies 26 ·
Graduate Asymmetric Schwarzschild solution
- knobsturner
- · Replies 6 ·
Graduate Understanding proper distance in Schwarzschild solution.
- peter46464
- · Replies 4 ·
Graduate Gravity AND curved space-time bending light
- bockerse
- · Replies 2 ·
Graduate Does mass really increase with speed
- lowemack
- · Replies 103 ·
Graduate Proof of the Fundamental Theorem of Calculus
- digi99
- · Replies 60 ·
Graduate Questions about Alcubierre Drive
- markcochran
- · Replies 1 ·
Graduate Gravitational behaviour of antimatter
- paweld
- · Replies 41 ·
How Could You Explore Interdimensional Travel Options?
- scheherazade
- · Replies 3 ·
Graduate Do we not even exist in some FoR?
- goodabouthood
- · Replies 15 ·
Graduate Light Speed Question: How Can 2 Light Particles Approach Each Other at 1xC?
- fpayam82
- · Replies 7 ·
Graduate Woodward Effect? Explain, please?
- sanman
- · Replies 19 ·
Graduate How can you drive the metric of kaluza klein in 5 D?
- optic27h
- · Replies 1 ·
Graduate Lorentzian contraction of a box increases the pressure inside?
- Messenger
- · Replies 14 ·
High School Galilean transformation - can you show me an example?
- goodabouthood
- · Replies 11 ·
Graduate If a absolute point would exist, still relativity theory would be valid
- digi99
- · Replies 11 ·
Graduate Rotating black holes, causality and time travel ramble
- Elroch
- · Replies 6 ·
High School Do things move in uniform motion in real life?
- goodabouthood
- · Replies 7 ·
Graduate Acceleration through PD, relativistic momentum
- Stickybees
- · Replies 4 ·
Graduate Can pressure cause gravity in a box of light?
- Elroch
- · Replies 1 ·
Graduate Falloff behaviour of light vs gravitation
- shalayka
- · Replies 3 ·
Graduate Another two ships relativity question
- nearc
- · Replies 3 ·
Graduate Calculation of an integral with retarded time
- FunWarrior
- · Replies 1 ·
Graduate Minimum safe distance to black hole
- berra
- · Replies 39 ·
Graduate Temperature in different frames
- SandeshPhy
- · Replies 2 ·
Graduate General Relativity, is gravity a force?
- AdkinsJr
- · Replies 29 ·
Discussion of Inertial Frames of Reference
- Casey Miller
- · Replies 17 ·
Graduate Is Space the Key to Understanding Everything in Physics?
- Narges
- · Replies 2 ·
Graduate Mass of Higgs & Relativistic: Is it Comprised of Both?
- nitsuj
- · Replies 7 ·
Undergrad Why force due to gravity or gravitation cannot be measured.
- rvn
- · Replies 6 ·
Undergrad Kinetic Energy approximation both Einstein's and Newton's
- TWest
- · Replies 8 ·
Time Stasis Chamber: Potential Tech in Near Future?
- megafu
- · Replies 2 ·
Graduate Mathematical Axioms of General Relativity
- learypost
- · Replies 4 ·
Graduate What Paradox of Simultaneity Did Feynman Challenge Us to Explore?
- billy_boy_999
- · Replies 11 ·
Graduate Observation from Single reference frame and STR
- universal_101
- · Replies 7 ·
Graduate Why is this idea on addition of velocities in SR wrong?
- nhmllr
- · Replies 4 ·
Undergrad Speed of two spaceships relative to each other observed by an earth observer
- salmise
- · Replies 3 ·
Graduate Gravity: force or space-time curvature?
- NJV
- · Replies 10 ·
Graduate Radial expansion of the universe and the speed of light
- AugustusM
- · Replies 2 ·
Graduate Special relativity implies very odd results
- discountbrain
- · Replies 32 ·
Graduate Why nothing about acceleration?
- ShayanJ
- · Replies 4 ·
Graduate Velocity of a photon from its own reference frame
- sri sharan
- · Replies 4 ·
Graduate Why extremal aging, not just maximal? (for an inertial body in spacetime)
- Colin Mitch
- · Replies 7 ·
Graduate Large black holes and information
- Elroch
- · Replies 6 ·
High School Does relativity have any day to day life applications?
- goodabouthood
- · Replies 25 ·
Graduate Physical meaning of tensor contraction
- zonde
- · Replies 1 ·
Undergrad Is the Milky Way galactic blackhole slowly sucking us in?
- arabianights
- · Replies 3 ·
Undergrad Why does time slow down the faster you go?
- goodabouthood
- · Replies 98 ·
Graduate What is the relationship between the Higgs boson and gravity?
- jnorman
- · Replies 10 ·
Graduate Quick question about curvation of spacetime
- joris_pixie
- · Replies 1 ·
Graduate Non-Tensors in GR: Affine Connections & Christoffel Symbols
- thehangedman
- · Replies 2 ·
Graduate Difference between Newton & GR
- John15
- · Replies 7 ·
Graduate Spacetime, physical or not really?
- ZirkMan
- · Replies 28 ·