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 Galileo's relativistic postulate question
- bernhard.rothenstein
- · Replies 5 ·
Graduate How Does the Twin Paradox Illustrate Time Dilation and Aging Differences?
- Compaq
- · Replies 1 ·
High School Is Exploding the Atom Possible?
- jimwharton
- · Replies 1 ·
Graduate Electron and photons time of flight
- lalbatros
- · Replies 4 ·
Graduate Question about A Calorimetric Test of Special Relativity
- lalbatros
- · Replies 6 ·
Graduate What is the significance of v=0 in Eddington-Finkelstein/Kerr coordinates?
- stevebd1
- · Replies 2 ·
Graduate What is Space? Mass, Curvature, Dimensions Explained
- earamsey
- · Replies 7 ·
Graduate Potential to rectify an error in wikipedia
- neopolitan
- · Replies 1 ·
Graduate GR Point Masses: Seeking Help from Relativists
- humanino
- · Replies 10 ·
Graduate Perspective and Time Question RE: Green's Fabric of Cosmos
- hgsouth
- · Replies 5 ·
Graduate Confusion about relativistic fluids
- Marco Melo
- · Replies 2 ·
Undergrad Understanding the Lorentz Factor: A Simple Explanation on Simple.wikipedia.org
- daytripper
- · Replies 10 ·
Graduate How Does Speed Affect Laser Light in a Moving Space Probe?
- mrzero
- · Replies 1 ·
Graduate Do mirrors show simultaneous events in the mirror frame?
- daytripper
- · Replies 10 ·
Graduate Black Holes, Quantum Gravity and the Curvature of spacetime
- juan_rod
- · Replies 34 ·
Graduate Validity of the Doppler shift formula?
- bernhard.rothenstein
- · Replies 9 ·
Graduate Is the Time Dilation Formula Incorrect?
- NordicLight
- · Replies 12 ·
Graduate Minkowski Space-Time: A Philosopher's Guide
- mrbeddow
- · Replies 4 ·
Graduate Lorentz contraction at relativistic speeds
- TonyP
- · Replies 1 ·
Graduate SR Inertial Frame Scenario Confusion
- werewolf
- · Replies 3 ·
Graduate Can We Observe Our Own Past Through Reflected Light?
- SW VandeCarr
- · Replies 36 ·
Graduate What are some open questions in general relativity for microscopic objects?
- Dmitry67
- · Replies 2 ·
Graduate Black Hole Entropy: Is S=A/4 robust ?
- Pacopag
- · Replies 1 ·
Graduate Is Einstein's Gravity Theory Historically Accurate?
- Nickelodeon
- · Replies 3 ·
Graduate Does Curved Spacetime Affect Atoms?
- Karl G.
- · Replies 2 ·
Graduate Does Defining a Four-Dimensional Velocity Vector Make Sense for Time Dilation?
- NanakiXIII
- · Replies 2 ·
Undergrad What are some everyday applications of relativity in modern technology?
- mintparasol
- · Replies 3 ·
Graduate Gravitational Time Dilation and the Galaxy Rotation Curve
- dewclaw
- · Replies 6 ·
Graduate Space-Time gravitational field problem
- Foxdove
- · Replies 5 ·
Graduate How does Curvature Relate to 'Gravitation'?
- Karl G.
- · Replies 5 ·
Graduate What is the proper time interval in special relativity?
- Rasalhague
- · Replies 5 ·
Graduate Is there such a thing as at rest ?
- ChrisPeace
- · Replies 38 ·
Undergrad Why one cannot push light but just in the normal direction to the ray?
- arithmetic
- · Replies 14 ·
Graduate Special relativity and the Photon
- discord73
- · Replies 3 ·
Graduate Mass-inflation in rotating/charged black holes
- stevebd1
- · Replies 3 ·
Undergrad Would You Experience Weightlessness in a Free-Falling Elevator?
- Jacksondont
- · Replies 19 ·
Graduate Volume of Dimension reduced due to gravitation
- benk99nenm312
- · Replies 10 ·
Graduate Why is Light Always Linked to Time in Relativity?
- 31moppie
- · Replies 7 ·
Graduate Length contraction and magnetic field
- Per Oni
- · Replies 5 ·
Graduate Homogeneity of Space and Time vs Gravity
- LarryS
- · Replies 1 ·
Undergrad Gravity: Is There an Equation?
- scupydog
- · Replies 1 ·
Graduate Is There a Connection Between Inertia and Time Dilation?
- 1bayouboy
- · Replies 6 ·
High School E=mc^2 and is it possible E/c^2=m
- arora-dhan
- · Replies 11 ·
Graduate Gravitational force vs space time fabric
- blade_chong
- · Replies 2 ·
Graduate A Challenge to Special Relativity?
- Curious6
- · Replies 55 ·
Graduate Particle disappearing from view if it exceeds c
- NanakiXIII
- · Replies 2 ·
Graduate Why should A change its view on the length of B ship during relative motion?
- Saw
- · Replies 42 ·
Graduate Is there a formula for the shrinking of the universe due to object curvature?
- benk99nenm312
- · Replies 3 ·
Graduate What's the curvature of spacetime describe?
- feynmann
- · Replies 10 ·
Graduate Spacetime we are able to distinguish between different inertial frames
- captain
- · Replies 2 ·
Graduate Surely fault about relativistic momentum
- BarbaraDav
- · Replies 1 ·
Graduate Constructing Lorentz Basis: Restrictions & Possibilities
- parton
- · Replies 4 ·
Graduate Clarifying the Jerk Four Vector: Definition & Form
- off-diagonal
- · Replies 3 ·
Graduate Gravitational Lensing: Extent & Effects on Universe
- Lexus Dominus
- · Replies 1 ·
Graduate Is Mass a Relative Concept in Physics?
- derek.basler
- · Replies 13 ·
Graduate What Happens to a Photon's 4 Momentum After a Lorentz Boost?
- curiouserand.
- · Replies 5 ·
Graduate Thim experiment: Doppler expected or not?
- lalbatros
- · Replies 11 ·
Graduate Understanding Special Relativity
- boswell
- · Replies 10 ·
Graduate Time Dilation & Gravity: Can You Go Back in Time?
- z0rn dawg
- · Replies 10 ·
Graduate Extrapolating Schwarzschild exterior coordinate
- Jonathan Scott
- · Replies 11 ·
Graduate Kretschmann Scalar for Rotating Black Holes: Curvature Invariant
- stevebd1
- · Replies 6 ·
Graduate Varying timing of eclipses of Algol and constant speed of light?
- O Great One
- · Replies 6 ·
Graduate Can You Be Both Dead and Alive When Traveling at Light Speed?
- 3CKPilot
- · Replies 8 ·
Graduate Is Electromagnetism Relative and Does it Create a Paradox in Moving Frames?
- Charlie G
- · Replies 3 ·
Undergrad Light Speed Relativity: A Puzzling Question
- Nel
- · Replies 3 ·
Graduate Units of length and time in MeV?
- philip041
- · Replies 11 ·
Undergrad Spacetime and how wormholes relate to it
- Dr.Boo
- · Replies 3 ·
Graduate EPR experiments imply STR not correct?
- zenith8
- · Replies 93 ·
Graduate Embedding curved spacetime in higher-d flat spacetime
- nickyrtr
- · Replies 9 ·
Graduate Black Hole and the event horizon
- Charlie G
- · Replies 4 ·
Graduate Matter and Antimatter - Gravity
- Keijo
- · Replies 3 ·
Undergrad Gravitational Lensing Deflection angle
- Jrod99
- · Replies 2 ·
Graduate Time dilation in de Sitter Special Relativity
- Parvulus
- · Replies 2 ·
Graduate Collapse to a ring singularity
- stevebd1
- · Replies 1 ·
Graduate Stupid question about invariance of maxwell equations
- kron
- · Replies 6 ·
Graduate Finding the ring-singularity of a rotating black hole
- TheMan112
- · Replies 7 ·
About Deja Vu: Mass and travelling into an alternate universe.
- Chaste
- · Replies 7 ·
Graduate Kinetic and dynamic twin effect
- lalbatros
- · Replies 32 ·
Graduate Lorentz-Fitzgerald Contraction or Time Dilation?
- Tlatoani
- · Replies 7 ·
Graduate Is There Evidence for Electric Field Contraction in Space?
- jefswat
- · Replies 9 ·
Graduate Operational definition of four velocity
- BarbaraDav
- · Replies 4 ·
Graduate SR is that nothing can move faster than light
- nieuwenhuizen
- · Replies 3 ·
Graduate How does curved spacetime result in an effective gravitational force?
- morenogabr
- · Replies 32 ·
Graduate Is Gravitational Acceleration a Violation of Space Curvature Theory?
- crx
- · Replies 25 ·
Graduate Finding Ratio Between Reduced Circumference & Radius of a Black Hole
- CJames
- · Replies 7 ·
Graduate Cosmic microwave background and a reference frame
- BarbaraDav
- · Replies 5 ·
Graduate Killing Vector on S^2: Solving the Killing Equation
- negru
- · Replies 11 ·
Graduate A few questions from introduction to sr by rindler.
- MathematicalPhysicist
- · Replies 29 ·
Undergrad How Do GR and SR Influence Modern Technologies Beyond Nuclear Energy?
- Dadface
- · Replies 6 ·
Graduate Calculating Stress Energy Tensor for Rotating Bodies
- fobos3
- · Replies 2 ·
Graduate How does the theory of relativity affect our understanding of temperature?
- blumfeld0
- · Replies 5 ·
Undergrad What does pressure mean in regards to GR?
- BWV
- · Replies 1 ·
Graduate Can tensors always commute with each other or are there exceptions?
- emma83
- · Replies 3 ·
Graduate Is 2nd postulate of SR necessary?
- Arham
- · Replies 39 ·
Graduate Question on general principle of relativity
- Ronald_Ku
- · Replies 5 ·
Undergrad Can Infinitesimal Time Change Our Understanding of Physics?
- Erasmus
- · Replies 5 ·
Graduate Quantum Mech incompatible with Relativity
- Pjpic
- · Replies 6 ·
Graduate What Does Repulsive Gravity Do to Space-Time?
- Charlie G
- · Replies 19 ·
Graduate Understanding Weinberg's Symmetries and Rays
- emma83
- · Replies 2 ·
Graduate About a Lorentz matrix and its inverse
- BarbaraDav
- · Replies 3 ·