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
Undergrad Is Faster Than Light Travel Possible?
- x2thay
- · Replies 15 ·
Graduate Relativistically correct exression for Lorentz force
- mlh3789
- · Replies 4 ·
Undergrad Velocity of Objects Relative to Speed of Light
- Wannabeagenius
- · Replies 1 ·
Graduate Twins' paradox and acceleration
- neopolitan
- · Replies 8 ·
Graduate What is the significance of the Gamma-Relativity connection in modern physics?
- Wizardsblade
- · Replies 10 ·
Graduate Will the Alpha Centauri Lottery Winner Change with Rocket Acceleration?
- Ookke
- · Replies 9 ·
Graduate Loss of simultaneity explained by classical physics
- granpa
- · Replies 35 ·
Graduate Understanding the Twin Paradox: Time and Length Contractions Explained
- granpa
- · Replies 43 ·
Graduate Is the singularity actually a manifestation of a higher dimensional object?
- mysearch
- · Replies 9 ·
Graduate Does a Black Hole Distinguish Particles?
- zarei
- · Replies 15 ·
Graduate Absolute speed of light conundrum
- Stanaz
- · Replies 4 ·
Graduate ?Strange? interpretation of Time-Dilation and it's implications
- jdodger
- · Replies 22 ·
Graduate Time dilation explanation for gravity?
- yuiop
- · Replies 5 ·
Graduate Is a Gauge Theory of Gravity Possible in Flat Spacetime?
- omar2
- · Replies 12 ·
Graduate Time Travel with Laser Ring: Dr. Ronald L. Mallett's Theory
- MaxPlank
- · Replies 29 ·
Graduate Relativistic cyclotron frequency
- jdstokes
- · Replies 3 ·
Undergrad Is PBS's Layman Explanation of E=mc^2 Accurate?
- trewsx7
- · Replies 4 ·
Graduate How can we tell if a given tensor is a curvature tensor?
- schieghoven
- · Replies 6 ·
Graduate Expanding Universe: Doubts & Questions
- arroy_0205
- · Replies 5 ·
Graduate Everything travels at the speed-of-light ?
- trewsx7
- · Replies 8 ·
Graduate Lorentz Question II: Doppler Shifted Freq. & Time Dilation
- Chrisc
- · Replies 11 ·
Graduate Reconciliation of Maxwell's Equations with Relativity
- Usaf Moji
- · Replies 6 ·
Graduate Another twin paradox variation
- Ookke
- · Replies 2 ·
Graduate Definition of Curvature for Sphere in Relativistic Cosmology
- maverick280857
- · Replies 7 ·
Graduate Is Lorentz transformation absolute
- Chrisc
- · Replies 51 ·
Graduate What are the meaning of monopole character and dipole character?
- xiaomaclever
- · Replies 2 ·
Graduate Time Dilation Near Black Holes: A Consequence of Mass and Singularity?
- blackwing1
- · Replies 2 ·
Graduate What is the Nature of Singularity Semantics?
- lzkelley
- · Replies 1 ·
Graduate Question on both Time Dilation and Lorentz Contraction
- Tyrusaur
- · Replies 4 ·
Undergrad At what speeds does relativity become noticable?
- SeaOfTea
- · Replies 2 ·
Graduate Possible Practical Applications of Gravity Waves
- Wizardsblade
- · Replies 2 ·
Graduate Creating Gravity Waves: Research Progress
- Nenad
- · Replies 14 ·
Graduate Time & Relativity: Grasping the Inconceivable
- laforge
- · Replies 4 ·
Graduate What Determines the Energy of a Two-Body Rotating System in General Relativity?
- I_wonder
- · Replies 1 ·
Graduate Relative velocity of third object
- newTonn
- · Replies 31 ·
Graduate How does Lorentz transformation manage to maintain the speed of light constant?
- AntigenX
- · Replies 6 ·
Graduate How can length contraction of a rod be measured?
- AntigenX
- · Replies 4 ·
Graduate Gravity vs Diffraction in Troposphere of a Star
- Buckeye
- · Replies 4 ·
Graduate Particle speed on a relativistic wheel?
- Wizardsblade
- · Replies 18 ·
Graduate On the speed of light, accelerate toward mass
- Nick89
- · Replies 10 ·
Graduate Confining a photon to form a black hole
- bernerami
- · Replies 2 ·
Graduate Why is the history of special relativity often overlooked in textbooks?
- Histspec
- · Replies 10 ·
Graduate Dingle's Dilemma: Solve the Puzzle
- mitesh9
- · Replies 57 ·
Graduate What are the implications of a Euclidean interpretation of special relativity?
- Mortimer
- · Replies 70 ·
Graduate Understanding Field Shift: The Doppler Effect and the Speed of Gravity Explained
- atom888
- · Replies 1 ·
Graduate Mathematics prerequisite to that of relativity
- fuzzy127
- · Replies 11 ·
Undergrad What do i need to know to move on to the Relativity ?
- Mad1kas
- · Replies 4 ·
Graduate Unraveling Redshift and Blueshift Confusion in Relation to Relativity
- mysearch
- · Replies 5 ·
Undergrad Twin Paradox: Explaining Time Dilation and Length Contraction
- AntigenX
- · Replies 7 ·
Graduate (E,p)(E,-p) What pushes on a scale?
- Phrak
- · Replies 12 ·
Graduate Does a photon curve space-time, i.e., produce a gravitational field?
- redtree
- · Replies 38 ·
Graduate Use of covariant derivative in general relativity.
- arroy_0205
- · Replies 8 ·
Graduate Gravity Probe B and 'frame dragging'
- Ian
- · Replies 2 ·
Graduate Apparent superluminal velocity of galaxies
- scimeister
- · Replies 11 ·
Graduate Can Electromagnetic Forces Cause Relativistic Effects on Spin Particles?
- atom888
- · Replies 1 ·
Graduate Conservation Laws: Matter and Antimatter Annihilation in a Sealed Box
- Phrak
- · Replies 13 ·
Graduate How can we see light moving with us if its speed is reduced by a factor of 100?
- Bigee
- · Replies 1 ·
Graduate Expression for the total energy of a particle of rest mass
- snoopies622
- · Replies 10 ·
Graduate Special Relativity question (from non-physicist)
- uby
- · Replies 6 ·
Graduate Questioning examples often used to introduce the basics of relativity
- sumofprimes
- · Replies 17 ·
Undergrad What Causes the Asymmetry in the Twin Paradox of Time Dilation?
- kknull
- · Replies 7 ·
Graduate Does the Earth's spin impact time dilation for satellites and GPS receivers?
- mogsy182
- · Replies 1 ·
Undergrad How Does General Relativity Affect Satellite Orbits and Time Dilation?
- mogsy182
- · Replies 2 ·
Graduate Faraday's law of induction and special relativity
- LHS1
- · Replies 3 ·
Graduate Is is not that Simple? (about Lorentz transforms)
- mitesh9
- · Replies 20 ·
Undergrad Can Time Contract? Physics Teacher Bet
- Pinto da Cost
- · Replies 29 ·
Graduate What is Physical Significance of Lorentz Transforms ?
- mitesh9
- · Replies 18 ·
Undergrad Time Dilation: Gravity & Speed Effects
- mikesvenson
- · Replies 24 ·
Undergrad Understanding Aether: What is it and What Does It Do?
- nuby
- · Replies 37 ·
Undergrad GPS & Relativity: Experiments & Simulations
- mogsy182
- · Replies 2 ·
High School Gravity: A Mystery of Attraction or Repulsion?
- Phy6explorer
- · Replies 23 ·
Graduate How Does Proper Time in Radial Free Fall Differ from Newtonian Predictions?
- Stoonroon
- · Replies 2 ·
Graduate Understanding the Sagnac Effect in GPS Systems: Explained
- O Great One
- · Replies 15 ·
High School Is Relativity Too Complex for Young Students to Grasp?
- Mad1kas
- · Replies 3 ·
Graduate How Is Relativistic Mass Measured Indirectly in Physics?
- bernhard.rothenstein
- · Replies 7 ·
Graduate Current Sagnac Effect Theory: PF Viewpoint
- HarryWertM
- · Replies 2 ·
Graduate Does gravity function as a lens, a prism or both?
- redtree
- · Replies 1 ·
Undergrad Why Can't Photons Have Rest Mass?
- fireball3004
- · Replies 7 ·
Graduate Does a relativistic rolling ball wobble?
- bwr6
- · Replies 125 ·
Graduate Gravity: A Dual Role as a Lens and a Prism for Light?
- redtree
- · Replies 2 ·
Graduate M&M, Trouton-Noble, Disintegrating Particle, etc
- hartlw
- · Replies 2 ·
Graduate Revisiting the Concept of Time for Photons: Insights from the Elevator Analogy
- shelanachium
- · Replies 15 ·
Graduate Why does the second postulate specifically refer to c?
- neopolitan
- · Replies 13 ·
Graduate Why is the idea of Aether being attached to Earth questioned?
- hartlw
- · Replies 3 ·
Graduate Solving Friedmann's Dust-Filled Equation for Radial Geodesics
- bjaw
- · Replies 5 ·
Graduate Sign convention in the space-time 4-vector
- redtree
- · Replies 9 ·
Graduate Twins Paradox and acceleration
- Bose
- · Replies 4 ·
Undergrad What Is Einstein's Geometric Model of Gravitation?
- Seraph404
- · Replies 14 ·
Undergrad Photon Kinetic Energy: Wavelength & Frequency
- nuby
- · Replies 4 ·
Graduate Discuss events which are simultaneous in one frame?
- neopolitan
- · Replies 280 ·
Graduate Do Black Holes Really Exist or Does General Relativity Contradict Itself?
- heiwos
- · Replies 1 ·
Graduate Why are tensors important in general relativity?
- jdstokes
- · Replies 21 ·
Graduate Why is the speed of light the same to any observer?
- Sheyr
- · Replies 50 ·
Graduate Understanding Special Relativity: The Train Example
- DocZaius
- · Replies 7 ·
Graduate Can Relativity Explain the Effects of High-Speed Motion on Gravity?
- kpc
- · Replies 8 ·
Graduate Is time, inside an event horizon, time-like or space-like?
- tiny-tim
- · Replies 34 ·
Graduate Does General Relativity Challenge the Conservation of Energy?
- redtree
- · Replies 19 ·
Graduate Twin Paradox: Can Age Asymmetry be Achieved on Earth?
- GRB 080319B
- · Replies 2 ·
Graduate Travel Faster Than Light: Going Back in Time?
- GomezMan91
- · Replies 14 ·
Graduate Divide by Zero: Lorentz Transformation Explained
- Dropout
- · Replies 1 ·