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 The Relativity of Time: How Moving Clocks Can Alter Our Perception of Time
- Master J
- · Replies 25 ·
Graduate When is something covariant or contravariant?
- omega_minus
- · Replies 7 ·
Graduate The Speed of Light, Gravity, and Why it all is what it is.
- Phyzwizz
- · Replies 55 ·
High School What's the Delay with a Wire to a Planet 1 Light Year Away?
- IssacBinary
- · Replies 4 ·
High School Why Does an Object Shrink When Traveling Close to Light Speed
- bodhi
- · Replies 4 ·
Graduate Is Gravity a Particle or a Spacetime Phenomenon?
- YoungDreamer
- · Replies 1 ·
Undergrad Sundial & Relativity: Inertial Frame Differences?
- mishima
- · Replies 9 ·
Graduate Can Standing Still Make Time Pass Faster Than the Speed of Light?
- abbott287
- · Replies 31 ·
Undergrad Humans travelling at light speed?
- mibaokula
- · Replies 48 ·
Graduate Black hole surface gravity question
- PeterDonis
- · Replies 10 ·
Graduate What Happens to Time and Light in Physics?
- Cbray
- · Replies 20 ·
Graduate Do Closed Timelike Curves Exist in Reality or Nature?
- byron178
- · Replies 12 ·
Graduate How Does Gravity Affect Flywheel Behavior in General Relativity?
- yuiop
- · Replies 15 ·
Graduate Basic questions on time dilation (probably already answered, sorry)
- Default
- · Replies 13 ·
Graduate Defining the dimension of a singularity?
- bcrowell
- · Replies 8 ·
Graduate Can you create a black hole from light? Also, Whiteholes vs. Blackholes
- bernsten69
- · Replies 3 ·
Graduate Gravitational effects on particles orbit in a box
- FunkyDwarf
- · Replies 3 ·
Graduate Understanding the Doppler Effect in Space-time Curvature
- ATdisplays
- · Replies 14 ·
Graduate What is the Stress-Energy Tensor
- OniLink++
- · Replies 7 ·
Graduate Is Gravity a Result of Mass Attracting Quanta of Mass?
- Goolds
- · Replies 34 ·
Graduate Penrose diagrams, reference request.
- martinbn
- · Replies 2 ·
Undergrad What Happens to Matter Inside a Black Hole?
- Shade Tree
- · Replies 19 ·
Graduate Does increasing velocity shrink matter?
- Pocketwatch2
- · Replies 10 ·
Graduate Thought experiment on the nature of light
- rede96
- · Replies 2 ·
Graduate Proof: Velocity of Light can't depend on velocity of body emitting the light
- haitham1984
- · Replies 7 ·
Undergrad 2 protons have less mass than combined
- Cbray
- · Replies 3 ·
Graduate Effect of Gravity Well on Muzzle Velocity of Gun
- yuiop
- · Replies 2 ·
Graduate Global GR Theorems without Energy Conditions?
- PAllen
- · Replies 2 ·
Graduate Lagrangian for the General Relativity
- MManuel Abad
- · Replies 3 ·
Graduate General Lorentz Matrix in Terms of Rapidities
- Passionflower
- · Replies 12 ·
Graduate Thought-Experiment with illustration - help me understand
- lovenugget
- · Replies 9 ·
High School Are black holes theoretical or real?
- LeeJeffries
- · Replies 13 ·
Graduate Does Causality Have Meaning When Spacetime Disappears?
- ndung200790
- · Replies 1 ·
Graduate Alcubierre Drive vs the Hubble Constant
- dan_r
- · Replies 4 ·
Graduate Imagine a solid, non-conducting cylinder at rest in IRF K, with a
- GRDixon
- · Replies 12 ·
Graduate Lorentz transformation for non-inertial frame
- lovetruth
- · Replies 17 ·
Graduate Why can light travel at the speed c?
- mibaokula
- · Replies 31 ·
Graduate Non singular black hole solutions
- evanallmighty
- · Replies 31 ·
Graduate Total energy at zero rest mass
- espen180
- · Replies 15 ·
Graduate How Does Space-Time Fabric Elasticity Influence Time Flow?
- nouveau_riche
- · Replies 3 ·
Graduate How Do Moving Charges Behave Differently in Different Reference Frames?
- lovetruth
- · Replies 59 ·
Undergrad The paradox, is basically a theory about time travel.
- qsefthuko66
- · Replies 31 ·
Graduate Can general relativity be constructed with differential forms?
- Phrak
- · Replies 10 ·
Graduate Computing Lagrangian for Light Propagation in Spacetime
- atoasttoall
- · Replies 1 ·
Undergrad So if space/time is a plain
- Twigsoffury
- · Replies 4 ·
Graduate Solving the Mystery: Understanding Relativity in a Simple Race
- abbott287
- · Replies 4 ·
Graduate Exploring the Effects of Relative Mass and Relativity on Gravitational Pull
- TWest
- · Replies 59 ·
Graduate Variable Speed of Light: Understanding Its Effects in Different Frames"
- lovetruth
- · Replies 11 ·
Undergrad Why Does Light Lose Energy with Universe Expansion?
- sancharsharma
- · Replies 4 ·
Graduate Can time run differently for the same observer at the speed of light?
- Rishavutkarsh
- · Replies 7 ·
Graduate I cant even find words on how to ask this question. My father brought
- spellwords
- · Replies 19 ·
Graduate Radial tidal forces and tidal forces on moving objects redux
- pervect
- · Replies 0 ·
Graduate Relativistic Momentum to Kinetic Energy Conversion
- mayeraus41
- · Replies 7 ·
Undergrad E=mc2 How did Einstein get to this equation?
- Zac Einstein
- · Replies 5 ·
Undergrad Understanding Einstein's General Relativity: A Simplified Approach
- Allojubrious
- · Replies 9 ·
Graduate Why is the speed of light absolute in all reference frames?
- PhizzicsPhan
- · Replies 30 ·
High School Einstein's Explanation of Mercury's Precession
- stevmg
- · Replies 7 ·
Graduate Could Time Travel Be Possible By Studying Particle Motion in the CERN Collider?
- ananthan345
- · Replies 9 ·
Graduate Relativity and Probability Waves
- PaulMurphy
- · Replies 1 ·
Graduate What is the maximum speed one can travel near a stellar mass black hole?
- mat1101
- · Replies 19 ·
Graduate Relativistic Ohms Law: Modeling 1D Hot Electron Beam in Plasma
- hunt_mat
- · Replies 2 ·
Graduate How exactly does mass curve space?
- alemsalem
- · Replies 3 ·
Graduate Landau-Raychaudhuri Equation: History & Study
- victorneto
- · Replies 2 ·
Graduate Why Does Redshift Occur?; Other Factors That Cause Elongation Of Wavelength?
- ecneicS
- · Replies 1 ·
Graduate Superluminal events which do not transmit information or energy
- touqra
- · Replies 5 ·
Graduate Can Superluminal Speed Be Incorporated into Lorentz Transformations?
- quantizedzeus
- · Replies 1 ·
Graduate Mechanism for Alcubierre engine?
- jerich1000
- · Replies 11 ·
Undergrad Magnetic field from Van De Graff
- arydberg
- · Replies 9 ·
Graduate Relativistic effects on a body rotating at near c
- dan_r
- · Replies 6 ·
Graduate Relativistic Problem: Mr. C's Observation
- khamaar
- · Replies 3 ·
Graduate Proton falling into a Black hole?
- cragar
- · Replies 10 ·
Graduate Calculating World Line for Least Proper Time: An Easy Question on Relativity
- teddd
- · Replies 3 ·
Graduate Question about Killing vectors in the Kerr Metric
- edwiddy
- · Replies 7 ·
Undergrad Understanding Mass and Energy in Special Relativity
- Zac Einstein
- · Replies 8 ·
Graduate Problems with a complex stress-energy tensor
- Time Suspect
- · Replies 3 ·
Undergrad Can Time Be Infinite?
- 1MileCrash
- · Replies 20 ·
Graduate Do Photons Influence Gravitational Fields?
- AntonL
- · Replies 19 ·
Graduate How Is The Relativity Of Simultaneity Consistent With Physics And Relativity
- hprog
- · Replies 47 ·
Graduate What is the condition for a circular orbit?
- vaibhavtewari
- · Replies 2 ·
Graduate Exploring the Physicality of Metric Solutions in Einstein's Field Equation
- TrickyDicky
- · Replies 41 ·
Graduate If time slows down as velocity approaches C
- ecneicS
- · Replies 15 ·
Undergrad Do Gravity Waves Exist? Understanding the Mechanics of Gravity Waves
- MegaDeth
- · Replies 10 ·
Graduate Is the polarization of light relative?
- Nirgal
- · Replies 4 ·
Graduate Rotation of coordinate system in minkowsky spacetime
- teddd
- · Replies 7 ·
Graduate Controlled experiment with time.
- eagerbeaver
- · Replies 56 ·
Graduate Maxwell's equations and relativity
- Zac Einstein
- · Replies 10 ·
Undergrad What tests have been done to confirm the speed of gravity?
- Tokage
- · Replies 15 ·
Graduate Gravity: An Effect or a Force?
- Curious4Ever
- · Replies 1 ·
High School Where did the gravity come from?
- Zac Einstein
- · Replies 6 ·
Undergrad Why Can We Feel the Gravitational Field of a Black Hole?
- briduende
- · Replies 48 ·
Graduate Time dilation plus constancy of light implies space is dilated?
- Goldbeetle
- · Replies 4 ·
Graduate Scenario where time dilation seems to be paradoxal
- marcobrei
- · Replies 15 ·
Graduate Calculating the speed of the earth
- hmvince
- · Replies 13 ·
Graduate Is body to body gravity scale independent?
- dylankarr.com
- · Replies 2 ·
Graduate Hermitian Metric - Calculating Christoffel Symbols
- thehangedman
- · Replies 11 ·
Graduate Can a photon be trapped and studied without observation?
- jobsism
- · Replies 5 ·
Graduate Falling into a super massive blackhold
- PatPwnt
- · Replies 5 ·
Graduate What is Frame Dragging and How Does a Black Hole's Rotation Affect Space?
- tkav1980
- · Replies 2 ·
Graduate Space-time at the speed of light
- San K
- · Replies 2 ·
Graduate Does Force Transform Equally in All Force Laws Among Different Reference Frames?
- GRDixon
- · Replies 5 ·